identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
000387CCFFBB584BFF2944F177F84C62.text	000387CCFFBB584BFF2944F177F84C62.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Maera Leach 1814	<div><p>Genus Maera Leach, 1814</p><p>Type species. Cancer grossimanus Montagu, 1808</p><p>Generic diagnosis. See Krapp-Schickel (2008).</p><p>Species composition.</p><p>Horton et al. (2025) enumerated 21 species in the genus: M. anoculata Rabindranath, 1983; M. bousfieldi Krapp-Schickel &amp; Jarrett, 2000; M. danae (Stimpson, 1853); M. denticoxa Ariyama, Kodama &amp; Tomikawa, 2020; M. edwardsi Chevreux, 1919; M. fusca Spence Bate, 1864; M. grossimana (Montagu, 1808); M. hirondellei Chevreux, 1900; M. irregularis Myers &amp; Nithyanandan, 2016; M. jerrica Krapp-Schickel &amp; Jarrett, 2000; M. loveni (Bruzelius, 1859); M. lucinae Krapp-Schickel, 2004; M. nelsonae Krapp-Schickel &amp; Jarrett, 2000; M. pachytelson G. Karaman &amp; Ruffo, 1971; M. sagamiensis Ariyama, 2020; M. schieckei G. Karaman &amp; Ruffo, 1971; M. similis Stout, 1913; M. sodalis G. Karaman &amp; Ruffo, 1971; M. spinimana Ren, 2012; M. tenera Sars, 1885; M. umarae García-Madrigal, 2010 . However, Maera spinimana lacks an important diagnostic feature of the genus: the setose outer margin of the gnathopod 2 dactylus. According to the key to genera in Krapp-Schickel (2008), this species is included in the genus Othomaera Krapp-Schickel, 2000, and the species name should be changed to Othomaera spinimana comb. nov. In total, the genus Maera is composed of 21 species including the new species, M. guaiao sp. nov.</p></div>	https://treatment.plazi.org/id/000387CCFFBB584BFF2944F177F84C62	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.		MagnoliaPress via Plazi	Queiroz, Beatriz;Senna, André R.;Da Silva, Alexandre R.	Queiroz, Beatriz, Senna, André R., Da Silva, Alexandre R. (2025): A new species of Maera Leach, 1814 and new records of Ceradocus Costa, 1853 and Dulichiella Stout, 1912 (Amphipoda: Hadzioidea) from Laje de Santos, São Paulo State, southeastern Brazil. Zootaxa 5711 (4): 527-544, DOI: 10.11646/zootaxa.5711.4.4, URL: https://doi.org/10.11646/zootaxa.5711.4.4
000387CCFFBB5841FF2941CB73E44D8C.text	000387CCFFBB5841FF2941CB73E44D8C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Maera guaiao Queiroz & Senna & Da Silva 2025	<div><p>Maera guaiao sp. nov.</p><p>(Figs. 1–3)</p><p>Material examined.</p><p>Holotype: male, 4.1 mm, dissected and illustrated, 16 m depth, with trap, 17/III/2016, Marine State <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-46.18028&amp;materialsCitation.latitude=-24.320278" title="Search Plazi for locations around (long -46.18028/lat -24.320278)">Park of Laje de Santos</a> (24º19’13” S, 46º10’49” W), São Paulo State, Brazil (UERJ 2301) . Paratypes: 1 male, 4 mm, same collection data as the holotype (UERJ 2300); 1 female, 4 mm, same collection data as the holotype (UERJ 2368) .</p><p>Diagnosis.</p><p>Gnathopod 1, coxa, anteroventral projection acute; propodus palm serrated; dactylus apical nail present. Gnathopod 2, basis, anterodistal corner produced into a round lobe forward; propodus palm defined by a blunt spine, bearing two triangular processes near the dactylus articulation and a slightly concave and smooth distal half margin, with some slender and robust setae; dactylus, outer margin bearing 14 slender setae. Pereopods 5–7, basis posterodistal lobe round. Pereopod 5, dactylus apical nail bearing 1 subapical posterior spine. Pereopods 6–7, dactylus apical nail bearing 2 subapical posterior spines. Telson 80% cleft of its length.</p><p>Description of male. Based on holotype (UERJ 2300) and male paratype (UERJ 2301).</p><p>Head, slightly deeper than long. Lateral cephalic lobe round. Eyes, irregular shape. Antenna 1 missing. Antenna 2, peduncle, article 4 about 1.4× longer than article 5; flagellum 8-articulate. Upper lip with two anterior setose lobes. Mandible, incisor tri-dentate; lacinia mobilis apically multi-cuspidate; accessory setal row with six curved plumose setae; palp, distal margin of article 1 with acute projection, palp article length ratio 1:2.3:2.1. Maxilla 1, inner plate bearing three long plumose apical setae, inner and outer margins setose; outer plate distal margin bearing five bifid robust setae and one multicuspidate robust setae at mediodistal corner; palp 2-articulate, article 2 distally setose. Maxilla 2, outer plater about 1.5× wider than inner plate. Maxilliped, inner plate subrectangular, bearing one curved multi-cuspidate robust setae mediodistally, distal margin setose; outer plate ovoid, about 1.5× longer than inner plate, bearing plumose setae increasing in length distally; palp 4-articulate, apical nail present.</p><p>Gnathopod 1, coxa about 1.2× deeper than long, anteroventral projection acute, anterior margin concave, naked, ventral margin smooth, anterior half slightly setose; basis subrectangular, about 2.5× longer than wide, posterior margin with 6 long simple setae; ischium about 1.5× longer than wide, bearing a transverse row of simple setae; merus subquadrate, distal margin with a dense row of simple and pectinate setae; carpus twice longer than wide and 1.2× longer than propodus, anterior margin, subdistal depression present, acute anterodistal projection present, ventral margin bearing row of plumose setae, lateral face with 6 rows of pectinate setae and 2 rows of simple setae; propodus suboval, about 1.5× longer than wide, dorsally with 8 sets of slender setae, ventral margin setose, palm serrated and slightly acute; dactylus, outer margin with a plumose proximal seta, inner margin with 7 submarginal plumose setae, apical nail present. Gnathopod 2, coxa subquadrate, ventral margin smooth; basis narrow, about 2.7× longer than wide, anterior margin distal half setose, anterodistal corner produced into a round lobe forwards, posterior margin proximal half setose; ischium subtrapezoidal, about 1.2× longer than its greatest width; merus, posterodistal corner acute; carpus subtriangular, about as long as wide, posterodistal corner with rows of plumose and pectinate setae; propodus 1.6× longer than wide and 3.3× longer than carpus, palm defined by a blunt spine, bearing two triangular processes near dactylus articulation and a slightly concave and smooth distal half margin, with some slender and robust setae; dactylus stout, curved, outer margin bearing 14 slender setae, inner margin naked, apical nail absent. Pereopod 3, coxa subquadrate, ventral margin smooth and setose; basis subrectangular, about 3.2× longer than wide; merus, carpus and propodus length ratio 1:0.9:0.8; propodus, posterior margin with 5 robust setae; dactylus simple, apical nail present. Pereopod 4 similar to pereopod 3. Pereopod 5, coxa, anteroventral lobe produced, round and setose; basis slightly expanded, about 1.9× longer than wide, posterior margin weakly serrate and setose, posterodistal lobe round; merus about 3.4× longer than wide, posterior margin with 2 robust setae; carpus and propodus combined about 1.7× longer than merus; dactylus simple, apical nail present bearing 1 subapical posterior spine. Pereopod 6, coxa, anteroventral lobe weakly produced, bearing 2 setae; basis slightly expanded, about 1.7× longer than wide, posterior margin serrate, distal half setose, posterodistal lobe round; merus about 2.5× longer than wide, anterior margin with 6 clusters of setae; carpus and propodus combined about 1.7× longer than merus; dactylus simple, apical nail present bearing 2 subapical posterior spines. Pereopod 7, coxa with 1 anteroventral seta; basis slightly expanded, about 1.6× longer than wide, posterior margin distally serrate, posterodistal lobe round; merus about 2.2× longer than wide, anterior margin with 4 clusters of setae; carpus and propodus combined about 2.1× longer than merus; dactylus simple, apical nail bearing 2 subapical posterior spines.</p><p>Epimeral plate 1, ventral margin with 2 setae, posterior margin smooth and naked, posteroventral corner subacute. Epimeral plate 2, ventral margin with 4 setae, posterior margin smooth and naked, posteroventral corner subacute. Epimeral plate 3, ventral margin with 4 setae, posterior margin slightly sinuous, with 2 distal small setae, posteroventral corner slightly produced and acute. Pleopod 1, peduncle about 5× longer than wide, distomesial corner bearing 2 coupling hooks, rami multiarticulate and setose. Pleopod 2, peduncle about 4.8× longer than wide, distomesial corner bearing 2 coupling hooks, rami multiarticulate and setose. Pleopod 3, peduncle about 3.5× longer than wide, distomesial corner bearing 2 coupling hooks, rami multiarticulate and setose. Uropod 1, peduncle 3.8× longer than wide, dorsomesial margin bearing 5 robust setae, dorsolateral margin bearing 6 robust setae, basofacial seta present; rami subequal in length, about 0.8× as long as peduncle, both dorsally and apically bearing robust setae. Uropod 2, peduncle 1.7× longer than wide, dorsolateral margin bearing 4 robust setae, outer ramus 1.2× longer than peduncle, inner ramus slightly longer than outer, both rami dorsally and apically bearing robust setae. Uropod 3 missing. Telson deeply cleft (80% of telson length), each lobe apically bicuspidate, bearing 1 subapical and 2 lateral robust setae.</p><p>Additionally, the different types of setae present in the new species described here are illustrated (Fig. 4) and their distribution along the body of the specimen is presented in Table 1.</p><p>Sexual dimorphic characters . Based on female paratype (UERJ 2368) .</p><p>Antenna 2, peduncle, article 4 about 1.3× longer than article 5; flagellum 7-articulate. Gnathopod 2, propodus 1.6× longer than wide and 2.6× longer than carpus, palm defined by a couple of robust setae and a small acute spine, weakly serrate and bearing a row of robust setae; dactylus stout, curved, outer margin bearing 9 slender setae, inner margin naked, apical nail absent.</p><p>Etymology.</p><p>The specific epithet guaiao, used in apposition, derives from the name “Guaiaó”, which was the indigenous name of the São Vicente Island, which currently covers the cities of Santos and São Vicente, in the State of São Paulo.</p><p>Type-locality.</p><p>Marine State <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-46.18028&amp;materialsCitation.latitude=-24.320278" title="Search Plazi for locations around (long -46.18028/lat -24.320278)">Park of Laje de Santos</a> (24º19’13” S, 46º10’49” W) , São Paulo State, Brazil .</p><p>Distribution.</p><p>The species is known only from the type locality.</p><p>Remarks.</p><p>Among all the species of the genus Maer a, only 3 species do not carry spines or robust setae defining palm of gnathopod 2. Maera lucinae, M. pachytelson and M. guaiao sp. nov. have palm defined only by palmar corner. Maera guaiao sp. nov. differs from the other two species in the following characteristics (characters in M. lucinae and M. pachytelson, respectively, in parentheses): eyes irregular (reniform; oval); antenna 2, flagellum 8-articulate (5-, 12-articulate); pereopods 5–7, apical nail with 1–2 subapical spines (both smooth); telson, each lateral margin with 2 robust setae (both without robust setae).</p><p>Additionally, M. guaiao sp. nov. shares a subdistal depression present on the anterior margin of the carpus of gnathopod 1 with a group of 5 other species: M. edwardsi; M. grossimana; M. hirondellei; M. irregularis; and M. lucinae . Maera guaiao sp. nov. presents antenna 2 flagellum 8-articulate, as well as M. edwardsi and M. hirondellei, but can be distinguished from these two species by the following (characters in M. edwardsi and M. hirondellei, respectively, in parentheses): eyes irregular (absent; reniform); gnathopod 2, propodus palm defined by palmar corner (both defined by 2 spines); pereopod 6, basis about 1.7× longer than wide (2.2×; 2×); pereopod 7, carpus and propodus combined about 2.1× longer than merus (both 1.8×). On the other hand, M. grossimana and M. irregularis presents antenna 2 flagellum 10- and 6-articulate, respectively. Maera grossimana can be further distinguished from Maera guaiao sp. nov. by the following (characters in M. grossimana in parentheses): gnathopod 1, dactylus apical nail present (absent); gnathopod 2, propodus palm defined by palmar corner (defined by 2 spines); pereopods 5–7, basis posterodistal lobe present (absent). Among these 6 species, only M. irregularis has coxa 1 with a rounded anteroventral projection, while all the others, including the new species described here, have a sharply projecting coxa.</p></div>	https://treatment.plazi.org/id/000387CCFFBB5841FF2941CB73E44D8C	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.		MagnoliaPress via Plazi	Queiroz, Beatriz;Senna, André R.;Da Silva, Alexandre R.	Queiroz, Beatriz, Senna, André R., Da Silva, Alexandre R. (2025): A new species of Maera Leach, 1814 and new records of Ceradocus Costa, 1853 and Dulichiella Stout, 1912 (Amphipoda: Hadzioidea) from Laje de Santos, São Paulo State, southeastern Brazil. Zootaxa 5711 (4): 527-544, DOI: 10.11646/zootaxa.5711.4.4, URL: https://doi.org/10.11646/zootaxa.5711.4.4
000387CCFFB05840FF294326703F4EC3.text	000387CCFFB05840FF294326703F4EC3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ceradocus Costa 1853	<div><p>Genus Ceradocus Costa, 1853</p><p>Type species. Ceradocus (Ceradocus) orchestiipes Costa, 1853</p><p>Generic diagnosis. See Krapp-Schickel &amp; Vader (2009).</p></div>	https://treatment.plazi.org/id/000387CCFFB05840FF294326703F4EC3	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.		MagnoliaPress via Plazi	Queiroz, Beatriz;Senna, André R.;Da Silva, Alexandre R.	Queiroz, Beatriz, Senna, André R., Da Silva, Alexandre R. (2025): A new species of Maera Leach, 1814 and new records of Ceradocus Costa, 1853 and Dulichiella Stout, 1912 (Amphipoda: Hadzioidea) from Laje de Santos, São Paulo State, southeastern Brazil. Zootaxa 5711 (4): 527-544, DOI: 10.11646/zootaxa.5711.4.4, URL: https://doi.org/10.11646/zootaxa.5711.4.4
000387CCFFB05845FF29422D70694E40.text	000387CCFFB05845FF29422D70694E40.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ceradocus (Denticeradocus) Sheard 1939	<div><p>Ceradocus (Denticeradocus) sp.</p><p>(Fig. 5–6)</p><p>Material examined.</p><p>One specimen (UERJ 2302), female, 9 mm, dissected and illustrated, 16 m depth, using trap, V/2016, Marine State <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-46.18028&amp;materialsCitation.latitude=-24.320278" title="Search Plazi for locations around (long -46.18028/lat -24.320278)">Park of Laje de Santos</a> (24º19’13” S, 46º10’49” W), São Paulo State, Brazil .</p><p>Description.</p><p>Mandible, incisor with two cusps; lacinia mobilis multi-cuspidate; accessory setal row with four curved serrate setae and four simple setae; palp, distal margin of article 1 with acute projection, palp article length ratio 1:1.6:0.7. including projection of article 1. Gnathopod 2, coxa subrectangular, ventral margin setose; basis about 2.6× longer than wide, posterior margin setose; merus with acute posterodistal projection; carpus subtriangular, posterior margin with 7 rows of slender setae; 1.4× longer than wide; propodus suboval, 1.9× longer than wide and 1.8× longer than carpus, posterior margin densely setose, palm acute defined by 2 robust setae, minutely serrate near dactylus articulation, with numerous robust setae; dactylus stout, outer margin with a single slender setae, inner margin with setules, apical nail absent. Pereopod 3, coxa subquadrate, ventral margin setose; basis posterior margin densely setose; merus, carpus and propodus length ratio 1:0.7:0.7; carpus and propodus, posterior margins with numerous robust setae; dactylus simple, apical nail present. Pereopod 4 similar to pereopod 3. Pereopod 5, coxa, anteroventral lobe produced, round with setules; basis about 1.7× longer than wide, posterior margin serrate, posterodistal corner acutely projected; merus about 2.2× longer than wide; carpus and propodus subequal in length, anterior and posterior margins with numerous clusters of robust setae; dactylus simple, apical nail present. Pereopod 6, coxa, anteroventral lobe weakly produced, bearing two robust setae; basis about 1.6× longer than wide, posterior margin serrate, posterodistal corner acutely projected; merus about 2× longer than wide; carpus and propodus subequal in length, anterior and posterior margins with numerous clusters of robust setae; dactylus simple, apical nail present. Pereopod 7, coxa with 1 anteroventral seta; basis about 1.6× longer than wide, posterior margin serrate, posterodistal corner acutely projected; merus about 1.8× longer than wide; carpus and propodus subequal in length, anterior and posterior margins with numerous clusters of robust setae; dactylus simple, apical nail present. Pleonites 1–3 dorsal margins distinctively serrate. Epimeral plate 1 ventral margin naked except for a single spine, posteroventral corner weakly produced, acute. Epimeral plate 2, ventral margin with a single spine and 2 robust setae, posteroventral corner produced upwards. Epimeral plate 3, ventral margin with 3 robust setae, ventral and posterior margins serrate. Urosomites 1–2 dorsally serrate. Telson deeply cleft (71% of telson length), each lobe distally acute, with 2 subapical long robust setae.</p><p>Remarks.</p><p>Although the collected specimen was single, female and partially damaged, it was possible to be classified as a member of the subgenus Ceradocus (Denticeradocus), based on typical diagnostic features, such as mandible palp article 1 with acute distal projection, article 3 very short, not falcate; pereopods, dactyli simple; pleonites and urosomites dorsally serrate; posterior margin of epimeral plate 3 strongly serrate. It is also possible to state that this specimen differs from the Brazilian species C. (D.) vaderi by the following characters (characters in C. (D.) vaderi in parentheses): gnathopod 2, propodus, palm not excavated (excavated), defined by two robust setae (defined by palmar corner), palmar margin minutely serrate near dactylus articulation (smooth); pereopods 3–4, basis, posterior margin densely setose (weakly setose); pereopods 5–6, basis, posterior margin serrate (smooth), posterodistal corner acutely projected (rounded); pleonite 1 dorsally serrate (smooth); epimeral plate 3, ventral and posterior margins serrate (only posterior margin serrate).</p><p>Among the few female specimens documented in the literature, this specimen resembles C. (D) circe Lowry &amp; Springthorpe, 2005 from Australia, and C. (D) greeni Appadoo &amp; Myers, 2005 from Mauritius for presenting pereopods 3–4, basis, posterior margin with many long slender setae; pereopods 5–7, basis, posterodistal corner acutely projected; epimeral plates 1–3 ventral margin with 1 or 2 spines; telson lobes strongly acute. However, this specimen can be distinguished from C. (D) circe by the following characters (characters in C. (D) circe in parentheses):gnathopod 2, merus with acute posterodistal projection (without acute projection); propodus 1.9× longer than wide and 1.8× longer than carpus (1.75× and 2.6×), palm without excavation (with medial excavation), defined by 2 robust setae (defined by 1 spine); telson, each lobe with 2 long robust setae (4). It can also be differentiated from C. (D) greeni by (characters in C. (D) greeni in parentheses): mandible palp articles length ratio 1:1.6:0.7 (1:2:0.4), including projection of article 1; gnathopod 2, carpus posterior margin with 7 rows of slender setae (4 rows); propodus 1.9× longer than wide and 1.8× longer than carpus (2.2× and 1.5×), posterior margin densely setose (weakly setose); pereopod 5 carpus and propodus subequal in length (carpus 1.3× longer than propodus), anterior and posterior margins with numerous clusters of robust setae (few clusters); telson, each lobe with 2 long robust setae (1).</p><p>To identify the Ceradocus species, morphological characteristics of the adult males are very important (Krapp-Schickel &amp; Vader 2009), and identification to the specific level was not feasible in this study. Further sampling of the male specimens is necessary for the accurate identification.</p></div>	https://treatment.plazi.org/id/000387CCFFB05845FF29422D70694E40	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.		MagnoliaPress via Plazi	Queiroz, Beatriz;Senna, André R.;Da Silva, Alexandre R.	Queiroz, Beatriz, Senna, André R., Da Silva, Alexandre R. (2025): A new species of Maera Leach, 1814 and new records of Ceradocus Costa, 1853 and Dulichiella Stout, 1912 (Amphipoda: Hadzioidea) from Laje de Santos, São Paulo State, southeastern Brazil. Zootaxa 5711 (4): 527-544, DOI: 10.11646/zootaxa.5711.4.4, URL: https://doi.org/10.11646/zootaxa.5711.4.4
000387CCFFB55845FF2943E471CB4F84.text	000387CCFFB55845FF2943E471CB4F84.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Dulichiella Stout 1912	<div><p>Genus Dulichiella Stout, 1912</p><p>Type species. Dulichiella spinosa Stout, 1912</p><p>Generic diagnosis. See Lowry &amp; Springthorpe (2007).</p></div>	https://treatment.plazi.org/id/000387CCFFB55845FF2943E471CB4F84	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.		MagnoliaPress via Plazi	Queiroz, Beatriz;Senna, André R.;Da Silva, Alexandre R.	Queiroz, Beatriz, Senna, André R., Da Silva, Alexandre R. (2025): A new species of Maera Leach, 1814 and new records of Ceradocus Costa, 1853 and Dulichiella Stout, 1912 (Amphipoda: Hadzioidea) from Laje de Santos, São Paulo State, southeastern Brazil. Zootaxa 5711 (4): 527-544, DOI: 10.11646/zootaxa.5711.4.4, URL: https://doi.org/10.11646/zootaxa.5711.4.4
000387CCFFB45847FF294599723B4FA2.text	000387CCFFB45847FF294599723B4FA2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Dulichiella anisochir (Kroyer 1845)	<div><p>Dulichiella anisochir (Krøyer, 1845)</p><p>(Fig. 7–8)</p><p>Melita anisochir Krøyer, 1845: 317, pl. II, fig. 1a–p.</p><p>Dulichiella appendiculata . –Wakabara, et al., 1991: 73. – Wakabara &amp; Serejo, 1998: 574. – Serejo, 1998: 373. [not Say, 1818]</p><p>Dulichiella anisochir: Lowry &amp; Springthorpe, 2007: 10, figs 3–6.</p><p>Material examined.</p><p>Two specimens, male, 11 mm, and male, 11 mm, dissected and drawn (UERJ 4686 and UERJ 5178), 16 m depth, with trap, III/2016, Marine State <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-46.18028&amp;materialsCitation.latitude=-24.320278" title="Search Plazi for locations around (long -46.18028/lat -24.320278)">Park of Laje de Santos</a> (24º19’13” S, 46º10’49” W), São Paulo State, Brazil . 17 specimens, ethanol 93% (UERJ 3697); 14 specimens, ethanol 93% (UERJ 3698); 12 specimens, ethanol 93% (UERJ 3700); 10 specimens, ethanol 93% (UERJ 3701); 13 specimens, ethanol 93% (UERJ 3702); 15 specimens, ethanol 93% (UERJ 3703), same data as dissected specimens .</p><p>Diagnosis.</p><p>Gnathopod 1 coxa anteroventral corner projected roundly, posteroventral corner with a notch; carpus 1.2× longer than propodus; propodus palm convex, serrate and defined by posterodistal corner; dactylus stout, inner margin serrate, apical nail present. Left gnathopod 2 (larger), propodus, distolateral crown with 3 spines. Right gnathopod 2 (smaller), merus with acute posterodistal projection; palm straight, serrated, defined by a long robust seta; dactylus, inner margin serrate, apical nail present. Pleonites and urossomites with dorsal spines. Epimeral plate 3, posteroventral corner strongly produced, posterior margin minutely serrate. Uropod 3, outer ramus 2× longer than peduncle, 10× longer than inner ramus. Telson deeply cleft (80% of telson length), each lobe with 3 dorsal and at least 2 lateral robust setae.</p><p>Remarks.</p><p>Dulichiella anisochir had not yet been recorded for the Marine State Park of Laje de Santos, this being the first record for the sampled location. The species recorded, D. anisochir, has 3 strong spines on the distolateral crown of propodus of the largest male gnathopod 2 and 9 dorsal spines on each pleosomite 1–3, versus 4 strong spines on distolateral crown of gnathopod 2 and 7 dorsal spines on each pleosomite 1–3 in both other species, D. ankeri and D. brunoi .</p></div>	https://treatment.plazi.org/id/000387CCFFB45847FF294599723B4FA2	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.		MagnoliaPress via Plazi	Queiroz, Beatriz;Senna, André R.;Da Silva, Alexandre R.	Queiroz, Beatriz, Senna, André R., Da Silva, Alexandre R. (2025): A new species of Maera Leach, 1814 and new records of Ceradocus Costa, 1853 and Dulichiella Stout, 1912 (Amphipoda: Hadzioidea) from Laje de Santos, São Paulo State, southeastern Brazil. Zootaxa 5711 (4): 527-544, DOI: 10.11646/zootaxa.5711.4.4, URL: https://doi.org/10.11646/zootaxa.5711.4.4
