identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
26D60C19118E5526B8043B8289DEB9EC.text	26D60C19118E5526B8043B8289DEB9EC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Caprella andreae Mayer 1890	<div><p>Caprella andreae Mayer, 1890</p><p>Fig. 2</p><p>Caprella acutifrons f. Andreae Mayer, 1890: 51–55, pl. 2, fig. 38; pl. 4, figs 56, 70, 71. — Chevreux and Fage 1925: 452, fig. 430 A.</p><p>Caprella andreae McCain, 1968: 19, figs 8, 9, 55. — Krapp-Schickel 1993: 777, fig. 530. — Aoki and Kikuchi 1995: 54 –61, figs 1, 2. — Cabezas et al. 2013 a: 483 –497, fig. 1. — Sezgin et al. 2009: 433 –437. — Woods et al. 2014: 97 –102, figs 2–4.</p><p>Material examined.</p><p>Uruguay • 13 males, 14 females; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-53.533554&amp;materialsCitation.latitude=-34.04547" title="Search Plazi for locations around (long -53.533554/lat -34.04547)">Punta del Diablo</a>; 34°02'43.7"S, 53°32'0.8"W; buoyant material stranded on the beach; 16 March 2023; Ramos T.; CCSEFC 342 . • 1 male, 1 female; same collection data as for preceding; MNCN 20.04/20991 .</p><p>Remarks.</p><p>Male specimens of C. andreae from Uruguay agree with original and subsequent descriptions of the species, having antenna 1 with globose peduncular article 2, gills large and rounded and propodus palm of pereopods 5–7 convex (Mayer 1890; McCain 1968; Krapp-Schickel 1993). Caprella andreae mainly differs from other related congeneric species in the convexity of the propodus of pereopods 5–7, which is probably an adaptation to cling to floating objects or tiny algae on the turtle carapace (Aoki and Kikuchi 1995; Cabezas et al. 2013 a). Although more than 25 caprellid species have been found on floating objects and have been reported or inferred as facultative rafters (see Thiel and Gutow 2005; Ashton 2006), only C. andreae can be considered as an obligate rafter, living exclusively on rafts where it spends its entire cycle (Cabezas et al. 2013 a). This species has been collected from the carapaces of sea turtles, floating objects such as driftwood, pumice, floating seaweeds, buoys, or ropes (McCain 1968; Cabezas et al. 2013 a; Sezgin et al. 2009; Woods et al. 2014; Hoffman 2022). The known distribution of C. andreae includes Northeastern Atlantic, Mediterranean Sea, Hawaii, Sea of Japan, Korean Strait, Atlantic coast of USA, Cuba, and Brazil (Woods et al. 2014; Mauro and Serejo 2015). The present study provides the first record of the species from the coasts of Uruguay, representing the southernmost record of the species in the Atlantic. Woods et al. (2014) also found the species in a mussel farm in New Zealand, where it seems to be successfully established. Considering that there is no information on C. andreae populations other than on floating objects or vagile fauna, further research is necessary to compare populations on floating material with populations on fixed structures such as the mussel farm (Woods et al. 2014). Phylogenetic analyses conducted by Cabezas et al. (2013 a) revealed the potential existence of cryptic species within C. andreae populations, so the species requires further taxonomic resolution.</p></div>	https://treatment.plazi.org/id/26D60C19118E5526B8043B8289DEB9EC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Ramos, Taiara;Verdi, Ana;Guerra-García, José M.	Ramos, Taiara, Verdi, Ana, Guerra-García, José M. (2026): New findings of shallow water caprellids (Crustacea, Amphipoda, Caprellidae) from Uruguay with an illustrated key to species. ZooKeys 1279: 241-267, DOI: 10.3897/zookeys.1279.175887
75A76FE28C6554EBA00B66718EC4B99B.text	75A76FE28C6554EBA00B66718EC4B99B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Caprella dilatata Kroyer 1843	<div><p>Caprella dilatata Krøyer, 1843</p><p>Fig. 3</p><p>Caprella dilatata Krøyer, 1843, 585–590, pl. 8 figs 1–9. — McCain 1968: 38. — Krapp-Schickel 1993: 779, fig. 532. — Guerra-García et al. 2006 b: 100 –108, fig. 2 E, G. — Masunari and Takeuchi 2006: 49 –60, figs 1–5. — Cabezas et al. 2013 b: 85 –99, fig. 5 g.</p><p>Caprella acutifrons f. minor Mayer, 1890: 54, pl. 2, fig. 35; pl. 4, figs 54, 64.</p><p>Caprella acutifrons f. typica Mayer, 1890: 54, pl. 2, fig. 34; pl. 4, figs 62–63.</p><p>Material examined.</p><p>Uruguay • 12 males, 15 females; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-54.16964&amp;materialsCitation.latitude=-34.663864" title="Search Plazi for locations around (long -54.16964/lat -34.663864)">La Paloma</a>; 34°39'49.9"S, 54°10'10.7"W; intertidal, on red filamentous algae; 1 September 2022 ; • 12 males, 53 females; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-53.533554&amp;materialsCitation.latitude=-34.04547" title="Search Plazi for locations around (long -53.533554/lat -34.04547)">Punta del Diablo</a>; 34°02'43.7"S, 53°32'0.8"W; 2–4 m deep, on red filamentous algae; 16 March 2023 ; • 8 males, 10 females; intertidal, on red filamentous algae; La Pedrera; 34°35'24.4"S, 54°07'16.3"W; 15 March 2023; Ramos T.; CCSEFC 340 . • 1 male, 1 female; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-53.533554&amp;materialsCitation.latitude=-34.04547" title="Search Plazi for locations around (long -53.533554/lat -34.04547)">Punta del Diablo</a>; 34°02'43.7"S, 53°32'0.8"W; 2–4 m deep, on red filamentous algae; 16 March 2023; Ramos T.; MNCN 20.04/20992 .</p><p>Remarks.</p><p>Caprella dilatata was originally described by Krøyer (1843) based on material from Rio de Janeiro, Brazil and it has been recently redescribed in detail by Masunari and Takeuchi (2006), based on Brazilian material from Itapocoroi Bay, Santa Catarina state. The present distribution of the species includes the Atlantic Ocean and the Mediterranean Sea (McCain and Steinberg 1970). Masunari and Takeuchi (2006) reported the occurrence of C. dilatata in Argentina, and the present study represents the first record of the species for Uruguay, confirming the wide distribution of the species along the Atlantic coast of South America. The material from Uruguay agrees with the descriptions of Mediterranean and Atlantic specimens (see Krøyer 1843; Krapp-Schickel 1993; Masunari and Takeuchi 2006). Caprella dilatata is morphologically very close to C. andreae and C. penantis, being the three species distributed in Uruguay. The most relevant distinguishing characters are the gills (rounded in C. andreae and C. dilatata and elongate in C. penantis) and the propodus palm of pereopods 5–7 (convex in C. andreae and concave in C. dilatata and C. penantis). Furthermore, the morphology of gnathopod 2 also differs among the three species (see Guerra-García et al. 2006: figs 2, 3; Cabezas et al. 2013 b: fig. 5). All the material collected from Uruguay has been found clinging onto red filamentous algae from intertidal and very shallow waters. The species has also been found in moderately exposed hard bottom dominated by brown seaweeds (Jacobucci et al. 2002). Lacerda and Masunari (2011) reported the presence of C. dilatata in 11 different substrata along the Brazilian coast, being a dominant species in finely branched and softly surfaced algal substrata, ascidian and bryozoan colonies, and the surfaces of buoys and ropes. Based on substratum selection experiments, these authors pointed out the strong preference of C. dilatata for the original alga-substratum and highlighted the importance of camouflage by keeping similar coloration to the substratum. In Itapocoroi Bay, C. dilatata reaches high densities over the surface of mussel shells, attached to longlines of mussel farming, and in associated bryozoans and sponges or directly on the surface of floats or ropes that hold longlines (Masunari and Takeuchi 2006). These authors pointed out that they become so numerous in the summer months that they might cause irritations to farmers’ skin. Important populations of C. dilatata have also been found in some recreational marinas of southern Spain, associated to fouling communities (mainly bryozoans and hydroids) on floating pontoons, and feeding mainly on detritus and secondarily on crustaceans, hydroids, microalgae, and dinoflagellates (Guerra-García et al. 2015). Nuñez-Velazquez et al. (2017) studied the population dynamics of C. dilatata inhabiting Mar del Plata Harbour, Argentina, and found that the species was present during the whole year, reaching its maximum densities in May, with no correlation between seawater temperature and monthly density. Baeza-Rojano and Guerra-García (2013) studied the C. dilatata life history under laboratory conditions (20 ° C, salinity 35, 12 hours light / 12 hours dark) and found that its life span from emergence of juveniles to death was 28–71 days, the generation period was 30.4 days, reaching sexual maturity in 21–32 days and having a fast incubation time from 3–5 days. Molting processes were continuous along the entire life cycle, with a number of 4–11 molts.</p></div>	https://treatment.plazi.org/id/75A76FE28C6554EBA00B66718EC4B99B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Ramos, Taiara;Verdi, Ana;Guerra-García, José M.	Ramos, Taiara, Verdi, Ana, Guerra-García, José M. (2026): New findings of shallow water caprellids (Crustacea, Amphipoda, Caprellidae) from Uruguay with an illustrated key to species. ZooKeys 1279: 241-267, DOI: 10.3897/zookeys.1279.175887
70C4D5A11DF35EF89740699BD1C9DBCC.text	70C4D5A11DF35EF89740699BD1C9DBCC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Caprella equilibra Say 1818	<div><p>Caprella equilibra Say, 1818</p><p>Fig. 4</p><p>Caprella equilibra Say 1818: 391–392. — McCain 1968: 25, figs 12–13. — Krapp-Schickel 1993: 782 –783, fig. 533. — Guerra-García and Thiel 2001: 878 –879, fig. 6. — Díaz et al. 2005: 4, fig. 4.</p><p>Caprella aequilibra Mayer 1882: 45, pl. 1, fig. 7; pl. 2, fig. 1–11; pl. 4, figs 20–25; pl. 5, figs 16–18. — Chevreux and Fage 1925: 455, fig. 433. 1</p><p>Material examined.</p><p>Uruguay • 24 males, 37 females; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-55.280167&amp;materialsCitation.latitude=-34.883793" title="Search Plazi for locations around (long -55.280167/lat -34.883793)">Piriápolis</a>; 34°53'01.65"S, 55°16'48.6"W; intertidal, on green filamentous algae; 20 April 2022; Ramos T.; CCSEFC 389 . • 1 male, 1 female; same collection data as for preceding; MNCN 20.04/20993 .</p><p>Remarks.</p><p>Caprella equilibra can be distinguished from other species of Caprella from Uruguay by the presence of a ventral projection between the insertions of gnathopod 2. This projection was present in most males and females, but it was lacking in some specimens. McCain (1968) also reported a variant of C. equilibra occurring along the coast of Virginia, North Carolina, and South Carolina in which the projection was reduced or absent. He pointed out that this reduction could be related to the association with gorgonians. However, in the present study, the specimens without projection were sharing the same habitat (green filamentous algae) as those with the projection. Zeina et al. (2015) found differences in robustness and size of specimens of C. equilibra from Madeira and Azores, and Guerra-García et al. (2015) also reported differences in size of specimens belonging to different populations of marinas from Southern Spain. The cosmopolitan distribution of C. equilibra could be explained by its ability to disperse in the water column as part of the plankton community (Takeuchi and Sawamoto 1998; Fernandez-Gonzalez et al. 2014; Guerra-García, pers. obs.) and to effectively colonize artificial structures (Ros et al. 2015; Revanales et al. 2022). However, considering the morphological variation among populations, a molecular approach would help to clarify its taxonomical status and to explore the existence or not of cryptic speciation (Sánchez-Moyano et al. 2015; Zeina et al. 2015). Caprella equilibra has been found on seagrasses, algae, sponges, hydroids, bryozoans, colonial ascidians, alcyonarians, and mussels, from the intertidal to 3000 m depth (McCain 1968; Krapp-Schickel 1993; Díaz et al. 2005). As the species is prone to colonize artificial environments (Ros et al. 2016), it can be abundant in aquaculture facilities, water duct pipes, power plants, as well as on floating substrata, e. g., buoys and floating algae (Takeuchi and Sawamoto 1998; Thiel et al. 2003; Fernandez-Gonzalez and Sanchez-Jerez 2017). Caprella equilibra feeds principally by filtering, frequently using grooming behavior (Guerra-García et al. 2002), and its diet mainly consists of detritus, crustaceans (e. g., copepods), hydroids, and dinoflagellates (Guerra-García and Tierno de Figueroa 2009; Alarcón-Ortega et al. 2012; Guerra-García et al. 2015). This species clings to the substratum mainly in the up-right position (Guerra-García et al. 2002). Caprella equilibra densities are related with seawater temperature (Nuñez-Velazquez et al. 2017). According to Baeza-Rojano and Guerra-García (2013) based on experiments conducted in laboratory conditions (20 ° C, salinity 35, 12 hours light / 12 hours dark) the caprellid life span for this species was 18–65 days, the generation period was 34.3 days, reaching sexual maturity in 23–33 days and having a fast incubation time from 4–6 days, and a number of 4–10 molts. Recently, the species has been considered a promising resource in aquaculture, as novel food with adequate nutritional profile rich in polyunsaturated fatty acids (Baeza-Rojano et al. 2014) and as an effective biofilter in Integrative Multi-Trophic Aquaculture (IMTA) systems (Guerra-García et al. 2016).</p></div>	https://treatment.plazi.org/id/70C4D5A11DF35EF89740699BD1C9DBCC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Ramos, Taiara;Verdi, Ana;Guerra-García, José M.	Ramos, Taiara, Verdi, Ana, Guerra-García, José M. (2026): New findings of shallow water caprellids (Crustacea, Amphipoda, Caprellidae) from Uruguay with an illustrated key to species. ZooKeys 1279: 241-267, DOI: 10.3897/zookeys.1279.175887
667CA21FD6B2535195A9414B1D95254D.text	667CA21FD6B2535195A9414B1D95254D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Caprella penantis Leach 1814	<div><p>Caprella aff. penantis</p><p>Fig. 5</p><p>Material examined.</p><p>Uruguay • 63 females; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-54.16964&amp;materialsCitation.latitude=-34.663864" title="Search Plazi for locations around (long -54.16964/lat -34.663864)">La Paloma</a>; 34°39'49.9"S, 54°10'10.7"W; 2–4 m deep, on red algae; 15 March 2023 . • 1 male, 24 females; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-54.121193&amp;materialsCitation.latitude=-34.59011" title="Search Plazi for locations around (long -54.121193/lat -34.59011)">La Pedrera</a>; 34°35'24.4"S, 54°07'16.3"W; intertidal, on red algae; 15 March 2023 . • 7 males, 51 females; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-54.16964&amp;materialsCitation.latitude=-34.663864" title="Search Plazi for locations around (long -54.16964/lat -34.663864)">La Paloma</a>; 34°39'49.9"S, 54°10'10.7"W; intertidal, on red algae; 7 June 2022 . • 18 males, 64 females; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-54.853806&amp;materialsCitation.latitude=-34.91825" title="Search Plazi for locations around (long -54.853806/lat -34.91825)">La Barra</a>; 34°55'05.7"S, 54°51'13.7"W; 2–4 m deep, on red algae; 6 December 2023 . • 4 males, 4 females; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-55.045998&amp;materialsCitation.latitude=-34.909863" title="Search Plazi for locations around (long -55.045998/lat -34.909863)">Punta Ballena</a>; 34°54'35.5"S, 55°02'45.6"W; 10 m deep, on red algae and bryozoans; 20 February 2023; Ramos T.; CCSEFC 388 . • 1 male, 1 female; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-55.045998&amp;materialsCitation.latitude=-34.909863" title="Search Plazi for locations around (long -55.045998/lat -34.909863)">Punta Ballena</a>; 34°54'35.5"S, 55°02'45.6"W; 10 m deep, on red algae and bryozoans; 20 February 2023; Ramos T. MNCN 20.04/20994 .</p><p>Remarks.</p><p>Caprella penantis was considered one of the most taxonomically challenging caprellids in the world, having been recorded under several forms or subspecies names (Mayer 1890, 1903). Recently, hidden diversity and cryptic speciation have refuted cosmopolitan distribution in C. penantis (Cabezas et al. 2013 b) . Consequently, the study of this species must be conducted separately in each region since material traditionally assigned to C. penantis sensu lato can belong to undescribed species (e. g., Sánchez-Moyano et al. 2015). Furthermore, a recent molecular study (Cabezas et al. 2022) provided evidence that C. penantis sensu stricto is probably restricted to UK coasts (type locality), the northern coast of the Iberian Peninsula, and the Azores. Therefore, although some morphological characters of the specimens from Uruguay are in agreement with the material of C. penantis sensu stricto, Uruguayan specimens probably belong to a different species. Caprella penantis has also been recorded in nearby regions of Brazil and Argentina (Mauro and Serejo 2015; López Gappa and Sueiro 2007). Future molecular studies are necessary to review the C. penantis complex in the area and explore whether all the populations from the east coast of South America belong to the same species or not, and, consequently, describe them following an integrative approach.</p></div>	https://treatment.plazi.org/id/667CA21FD6B2535195A9414B1D95254D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Ramos, Taiara;Verdi, Ana;Guerra-García, José M.	Ramos, Taiara, Verdi, Ana, Guerra-García, José M. (2026): New findings of shallow water caprellids (Crustacea, Amphipoda, Caprellidae) from Uruguay with an illustrated key to species. ZooKeys 1279: 241-267, DOI: 10.3897/zookeys.1279.175887
EC32C488C6835FBD89E430AC1DC0C599.text	EC32C488C6835FBD89E430AC1DC0C599.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Caprella scaura Templeton 1836	<div><p>Caprella scaura Templeton, 1836</p><p>Fig. 6</p><p>Caprella scaura Templeton 1836: 191–192, pl. 20, fig. 6. — Bate 1862: 355, pl. 56, fig. 4. — Mayer 1882: 65. — Mayer 1890: 70 –74, pl. 4, figs 40–51, pl. 6, fig. 41, pl. 7, figs 2, 35, 36. — Mayer 1903: 117 –120 pl. 5, figs 13–18, pl. 10, fig. 11. — McCain 1968: 40 –44, figs 17–18. — Guerra-García 2003 a: 4 –5, fig. 2. — Krapp et al. 2006: 1 –18, figs 1–12. — Ito et al. 2010: 183 –190. — Guerra-García et al. 2011: 2617 –2622, fig. 1. — Ros et al. 2014 a: 145 –155, fig. 3. — Cabezas et al. 2014: 2221 –2245.</p><p>Caprella nodosa Templeton, 1836: 191–192, pl. 21, fig. 7.</p><p>Caprella cornuta Dana, 1853: 816–817 .</p><p>Caprella attenuata Dana, 1853: 817–819 . 2</p><p>Material examined.</p><p>Uruguay • 1 male, 1 female; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-55.280167&amp;materialsCitation.latitude=-34.883793" title="Search Plazi for locations around (long -55.280167/lat -34.883793)">Piriápolis</a>; 34°53'01.65"S, 55°16'48.6"W; 2–4 m deep, on red filamentous and red algae; 7 March 2023; Ramos T.; CCSEFC 341 . • 1 male, 1 female; same collection data as for preceding; MNCN 20.04/20995 .</p><p>Remarks.</p><p>Caprella scaura was described from Mauritius (the type locality) by Templeton in 1836. Mayer (1890, 1903) described six forms of the species: typica from Brazil and Australia, diceros from Japan, cornuta from Brazil, californica from California, scauroides from Hong Kong, China, and Japan, and spinirostris from Chile. Utinomi (1947) added a seventh form, hamata from Japan. The nominal species originally described from Mauritius is named Caprella scaura scaura (Krapp et al. 2006) and, according to morphological and molecular approaches (Cabezas et al. 2014; Ros et al. 2014 a), C. scaura scaura and C. scaura typica are the same species, considered as Caprella scaura sensu stricto . Caprella scaura californica and C. scaura scauroides are now considered to belong to two separate species (Takeuchi and Oyamada 2013), and Cabezas et al. (2014) considered the subspecies C. s. spinirostris and C. s. diceros also as two valid species based on molecular evidence. The specimens from Uruguay totally agree morphologically with Caprella scaura sensu stricto, which is the only species within the complex with worldwide distribution due to its invasive character (Ros et al. 2014 a; Martínez-Laiz et al. 2021). Similarly to Brazil, the species could be considered cryptogenic in Uruguay. In potentially native regions, this species occurs in natural habitats, inhabiting a variety of substrata such as bryozoans, hydroids, seaweeds, seagrasses, and sponges (Lim and Alexander 1986; Takeuchi and Hino 1997; Serejo 1998; Guerra-García 2003 a). In the exotic range, the species is restricted to artificial environments, mainly recreational marinas, where it occurs mainly on bryozoans and hydroids (Ros et al. 2013 a; Guerra-García et al. 2024). This species clings to the substratum mainly in the up-right position, although males spend higher percentages of time than females in the posture parallel to the substratum (González-Romero et al. 2016). It is mainly a detritivorous species (Guerra-García and Tierno de Figueroa 2009), using often grooming behavior (Guerra-García et al. 2002; Ros et al. 2014 b). Maturation time has been estimated under laboratory conditions to require approximately 25 days (González-Romero et al. 2016). Abundance patterns, seasonal fluctuations, small scale distribution, and ecophysiology of C. scaura have been studied in localities along the Mediterranean and East Atlantic coasts where this species is invasive (Krapp et al. 2006; Martínez and Adarraga 2008; Guerra-García et al. 2011; Minchin et al. 2012; Prato et al. 2013; Ros et al. 2013 a, 2015, 2021; Cabezas et al. 2014; Molina et al. 2017). The species exhibits aggressive behavior among individuals, especially males in the presence of receptive females, which also may display parental care (Lim and Alexander 1986; Schultz and Alexander 2001).</p></div>	https://treatment.plazi.org/id/EC32C488C6835FBD89E430AC1DC0C599	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Ramos, Taiara;Verdi, Ana;Guerra-García, José M.	Ramos, Taiara, Verdi, Ana, Guerra-García, José M. (2026): New findings of shallow water caprellids (Crustacea, Amphipoda, Caprellidae) from Uruguay with an illustrated key to species. ZooKeys 1279: 241-267, DOI: 10.3897/zookeys.1279.175887
558294379EFF5B978AC3B8C7CC74E9BA.text	558294379EFF5B978AC3B8C7CC74E9BA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Paracaprella pusilla Mayer 1890	<div><p>Paracaprella aff. pusilla</p><p>Fig. 7</p><p>Material examined.</p><p>Uruguay • 6 males; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-54.16964&amp;materialsCitation.latitude=-34.663864" title="Search Plazi for locations around (long -54.16964/lat -34.663864)">La Paloma</a>; 34°39'49.9"S, 54°10'10.7"W; 2–4 m deep, on filamentous algae; 7 June 2022 . • 3 males, 8 females; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-54.16964&amp;materialsCitation.latitude=-34.663864" title="Search Plazi for locations around (long -54.16964/lat -34.663864)">La Paloma</a>; 34°39'49.9"S, 54°10'10.7"W; 2–4 m deep, on filamentous algae; 1 September de 2022; Ramos T.; CCSEFC 343 . • 1 male, 1 female; same collection data as for preceding; MNCN 20.04/20996 .</p><p>Remarks.</p><p>Paracaprella pusilla Mayer, 1890 is a tropical caprellid species recently introduced to the Eastern Atlantic coast of the Iberian Peninsula and the Mediterranean Sea (Ros and Guerra-García 2012; Ros et al. 2013 b; Cabezas et al. 2019). The Atlantic coast of Central and South America has been postulated as the most likely native range for P. pusilla (Mayer 1903; McCain 1968; Carlton and Eldredge 2009; Cabezas et al. 2019). Indeed, P. pusilla is one of the dominant species in natural sheltered and artificial habitats of the coasts of southern Brazil (Ros et al. 2016), adjacent to the coast of Uruguay. Therefore, it was expected that the species is also distributed along the Uruguayan coast. The material collected during the present study morphologically resembles P. pusilla, mainly in the presence of the anterolateral projection of pereonite 2 and the proximal knob on the basis of gnathopod 2. However, the anterolateral projection of pereonite 2 is very small in the material from Uruguay, and Uruguayan specimens lack the small dorsal tubercle on pereonite 2, which is present in P. pusilla (Ros and Guerra-García 2012; Ros et al. 2013 b). Gnathopod 2 and pleura of pereonites 3 and 4 also differ. Specimens from Uruguay are smaller than specimens of P. pusilla from other areas of the world. As specimens examined in the present study were mainly subadults, the morphological differences could be attributed to ontogenetic development. But we cannot exclude that the material of Paracaprella from this study could belong to an undescribed species, close to (but smaller than) P. pusilla . Collection of additional fresh material and further molecular and morphological analyses are encouraged to clarify the taxonomical status of Paracaprella in Uruguay.</p></div>	https://treatment.plazi.org/id/558294379EFF5B978AC3B8C7CC74E9BA	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Ramos, Taiara;Verdi, Ana;Guerra-García, José M.	Ramos, Taiara, Verdi, Ana, Guerra-García, José M. (2026): New findings of shallow water caprellids (Crustacea, Amphipoda, Caprellidae) from Uruguay with an illustrated key to species. ZooKeys 1279: 241-267, DOI: 10.3897/zookeys.1279.175887
