Caridina natalensis De Man, 1908

Mazancourt, Valentin De, Castelin, Magalie, Renneville, Clementine, Mlambo, Musa C., Marquet, Gerard & Keith, Philippe, 2019, Revalidation of Caridina natalensis De Man, 1908 (Crustacea: Decapoda: Atyidae) in the South Western Indian Ocean, Zootaxa 4543 (3), pp. 375-387: 379-384

publication ID

https://doi.org/10.11646/zootaxa.4543.3.3

publication LSID

lsid:zoobank.org:pub:664F8A71-F6D9-40F6-9713-FF72003108A2

persistent identifier

http://treatment.plazi.org/id/693387B3-FF8F-B63C-FF35-FA2786FDFD55

treatment provided by

Plazi

scientific name

Caridina natalensis De Man, 1908
status

 

Caridina natalensis De Man, 1908  

Caridina nilotica var. natalensis De Man, 1908: 262   –263 pl.20, fig.3, 3a, 3b; Lenz, 1912: 5; Bouvier, 1925: 154 –155 fig. 320; Barnard, 1950: 655 (key).

Caridina   longirostris- Richters, 1880:162 –163; Holthuis, 1965: 20 –23 fig. 6; Keith et al. 2006: 50 –51.

Caridina nilotica   var. brachydactyla- Lenz, 1910: 568; Roux, 1929: 303 –304 tab.1 no.15.

Caridina nilotica   var. gracilipes- Lenz, 1910: 568.

Caridina brachydactyla brachydactyla   - Costa 1980: 673 –700.

Material examined. Type material: Caridina nilotica natalensis De Man, 1908   : SOUTH AFRICA. Lectotype (designated by Richard & Clark, 2010). ZMA. CRUS.D. 102886, 1♀ ovig. cl 6.4mm; Umgeni River, Durban, Natal, coll. M. Weber, 1898, det. J.G. De Man. Paralectotypes. ZMA. CRUS.D. 102886, 2♀ ovig. cl 5.7–6.4mm; same data.

Caridina nilotica var. brachydactyla De Man, 1908   : INDONESIA. Lectotype (designated by Richard & Clark, 2010). RMNH.CRUS.D.977, 1♀ ovig. cl 4.8mm; Near Reo, Flores, coll. M. Weber. Paralectotypes. RMNH. CRUS.D.2552, 2♀ ovig. cl 5.3–5.4mm; river near Palopo Luwu, Sulawesi, coll. M. Weber   ..

Caridina brevidactyla Roux, 1920   : INDONESIA. Lectotype (designated by Richard & Clark, 2010). NMB 4 View Materials .   VI. b 1, 1♂ cl 4,8mm; Sungi Manumbai , Wokam Island, Aru, April 14   15,1908. Paralectotypes. NMB 4 View Materials .   VI. a, 1♂ cl 3.3mm; Aru , Udjir Island, April 15, 1908   , NMB 4 View Materials .   VI. b, 2♀ cl 5.8–6.4mm; Sungi Manumbai , Wokam Island, Aru, April 14   –15,1908. NMB 0 0 0 0 4 VIc, Wokamar , Wokam Island, Aru, April 17, 1908   , 1♀ ovig. 5,7mm; NMB 4 View Materials .   VI. d; 2♀ ovig. cl 5.7mm, Seltutti , Kobroor Island, Aru, May 2, 1908   .

Caridina gracilipes De Man, 1892   : INDONESIA. Paralectotypes. ZMA.CRUS.D. 102635, 1♂ cl 4.1mm (DNA: CA025), 1♀ ovig. cl 5.9mm (DNA: CA023), 3♀ cl 5.1mm (DNA: CA027), 5.2mm (DNA:CA024) and 5.6mm; in a rice field, Makassar, Sulawesi, coll. M. Weber, 1888. NMB 1061e, 1♂ 3.8mm; 2♀ cl 5.8–5.9mm; same data.

Caridina longirostris H. Milne Edwards, 1837   : ALGERIA. Paralectotypes. MNHN-IU-2013-19419, 3♂ cl 2.9–3.1mm; from the river Macta, near Oran. MNHN IU-2013-19418, 2♂ 3.2–3.6mm; same data.

Non- types: Caridina natalensis   KENYA. MNHN-IU-2015-1854, Tiwi river, 20km south of Mombasa. TANZANIA. NHM 1982.576, 3♀ ovig. cl 5.5–7.2mm, Ruo Lukuledi, Tanganyika. SOUTH AFRICA. MNHN- IU- 2018-61, 1   ♂ cl 3.3mm (DNA: CA2079) and MNHN-IU- 2018-62   , 1♀ ovig. cl 6.0mm, River Mbanyana , 32°13.123'S 28°55.031'E, altitude 9m, coll. Maliwa L., Mlambo M., Marquet G. & Tiberghien, P., February 11, 2018 GoogleMaps   ; MNHN-IU- 2018-63, 1♀ ovig. cl 6.9mm and MNHN-IU- 2018-64, 1♀ ovig. cl 6.8mm, River Umtata , altitude 2m, 31°34.144'S, 28°45.523'E, coll. Maliwa L., Mlambo M., Marquet G. & Tiberghien, P., February 13, 2018 GoogleMaps   ; MNHN-IU- 2018-65, 1♀ ovig. cl 6.3mm and MNHN-IU- 2018-66, 1♀ ovig. cl 6.3mm (DNA: CA2083), River Mzumbe , altitude 6m, 30°36.151'S 30°32.817'E, coll. Maliwa L., Mlambo M., Marquet G. & Tiberghien, P., February 16, 2018 GoogleMaps   ; MNHN-IU- 2018-67, 1♀ ovig. cl 6.8mm and MNHN-IU- 2018-68, 1♀ ovig. cl 7.0mm, River iLovu, altitude 8m, 17°05.858'S 30°49.390'E, coll. Maliwa L., Mlambo M., Marquet G. & Tiberghien, P., February 17, 2018 GoogleMaps   . MAYOTTE. MNHN-IU- 2018-69   , 1♀ ovig cl 6.1mm, River Bouyoni , altitude 14m, 12°43.966'S 45°8.250'E, coll. ARDA, May 15, 2006 GoogleMaps   ; MNHN-IU- 2018-70, 1♀ cl 4.5mm and MNHN-IU- 2018-71, 1♀ cl 6.0mm, River Dembeni , altitude 19m, 12°50.402'S 45°10.461'E, coll. ARDA, November 12, 2003 GoogleMaps   ; MNHN-IU- 2018-72, River Kwalé , altitude 39m, 12°48'092'S 45°11.520'E, coll. ARDA, November 10, 2003   ; MNHN-IU- 2018-73, 1♀ cl 4.6mm, MNHN-IU- 2018-74, MNHN-IU- 2018-76 and MNHN-IU- 2018-75, 1♀ cl 5.2mm, River Soulou , altitude 14m, 12°45.812'S 45°5.951'E, coll. ARDA, November 9, 2003 GoogleMaps   . COMOROS. MNHN-IU- 2018- 77   , 1♀ ovig. cl 3.8mm (DNA: CA1344), River Bwanifunge , Moheli Island, altitude 39m, 12°19.642'S, 43°40.240'E, coll. A. Abdou December 30, 2013 GoogleMaps   ; MNHN-IU- 2018-78, 1♀ ovig. cl 4.5mm (DNA: CA1343), River Mdjawashe , Moheli Island altitude 18m, 12°21.386'S, 43°41.944'E, coll. A. Abdou, December 31, 2013 GoogleMaps   . MADAGASCAR. MNHN-IU- 2018-79   , 1♀ ovig. cl 4.1mm (DNA: CA1035), MNHN-IU- 2018-80   , 1♀ ovig. 4.8mm (DNA: CA1037), MNHN-IU- 2018-81   , 1♀ cl 4.3mm and MNHN-IU- 2018-82, 1♂ cl 4.8mm, River Ambodiforaha , altitude 9m, 15°43.054'S 49°57.637'E, coll. R. Fara, H. Grondin, G. Marquet, T. Robinet, May 15, 2010 GoogleMaps   ; MNHN-IU- 2018-87, 1♀ ovig cl 3.5mm, MNHN-IU- 2018-83, 1♀ ovig cl 5.2mm, MNHN-IU- 2018-88 1♀ cl 4.0mm, MNHN-IU- 2018-85, 1♀ cl 4.0mm, MNHN-IU- 2018-86, 1♀ cl 4.3mm and MNHN-IU- 2018-84, 1♂ cl 4.0mm, River Andempona, Ampanasanovy estuary, altitude 0m, 14°35.298'S 50°10.105'E, coll. C. Ellien, R. Fara, E. Feunteun, N. Mary, T. Robinet, July 0 4, 2008; MNHN-IU- 2018-89 GoogleMaps   , 1♀ ovig. cl 4.7mm, MNHN-IU- 2018-90, 1♀ cl 4.7mm, MNHN-IU- 2018-92, 1♀ cl 4.9mm, MNHN-IU- 2018-91, 1♀ cl 5.5mm, MNHN-IU- 2018-93, 1♂ cl 3.8mm and MNHN-IU- 2018-94, 1♂ cl 4.0mm, River Ankavia , altitude 23m, 14°59.488'S 50°11.095'E, coll. C. Ellien, R. Fara, E. Feunteun, N. Mary, T. Robinet, July 0 3, 2008; MNHN-IU- 2018-95 GoogleMaps   , 1♀ ovig. cl 4.0mm, MNHN- IU- 2018-96, 1   ♀ cl 4.8mm, MNHN-IU- 2018-97, 1♀ cl 5.5mm and MNHN-IU- 2018-98, 1♂ cl 3.0mm, River Fanambana , altitude 11m, 14°33.517'S 50°10.017'E, coll. C. Ellien, R. Fara, E. Feunteun, N. Mary, T. Robinet, July 4, 2008 GoogleMaps   ; MNHN-IU- 2018-99, 1♀ ovig cl 3.9mm (DNA: CA1184) and MNHN-IU-2018-100   , 1♀ cl 4.8mm (DNA: CA1185), unknown locality, coll. C. Ellien, R. Fara, E. Feunteun, N. Mary, T. Robinet. SEYCHELLES ISLANDS. MNHN-IU-2017-1445   , 1♀ ovig. cl 4.8mm (DNA: CA1195) and MNHN-IU-2017-1446   , 1♀ cl 4.8mm (DNA: CA1194), unknown river, Mahé Island, coll. ARDA, November 24, 2004   ; MNHN-IU-2017-1447, 1♀ ovig. cl 4.5mm (DNA: CA1186) and MNHN-IU-2017-1448   , 1♂ cl 4mm (DNA: CA1187), River Nouvelle Découverte , Praslin Island, altitude 8m, 4°19.304'S 55°42.351'E, coll. ARDA, October 0 8, 2003.; MNHN-IU-2017-1449 GoogleMaps   , 1♀ ovig. cl 4.9mm (DNA: CA1197) and MNHN-IU-2017-1450   , 1♂ cl 4.1mm (DNA: CA1196), River Grande Barbe , Silhouette Island, 4°30.052'S 55°13.537'E, coll. ARDA, November 20, 2004 GoogleMaps   . MAURITIUS. MNHN-IU-2017- 1451, 1♀ ovig. cl 4.2mm, MNHN-IU-2017-1452, 1 juvenile cl 2.3mm, MNHN-IU-2017-1454, 1 juvenile cl 2.4mm and MNHN-IU-2017-1453, 1 juvenile cl 2.6mm; Forested lake, saline, near Camp Poorun , altitude 11m, 20°10.517'S 57°45.767'E, coll. C. R. Turner, December 11, 2005 GoogleMaps   .

Diagnosis. Carapace ( Fig. 2m, n, o View FIGURE 2 ) smooth, glabrous, with sharp antennal spine placed at lower orbital angle. Pterygostomian margin rounded. Rostrum rather constantly long, 0.8–1.3 of cl, straight or curved up distally, reaching well beyond scaphocerite. 15–26 dorsal teeth, leaving distally unarmed part of rostrum 0.4–1.2 times that of armed part, except for one to three subapical tooth, 1 to 2 post-orbital teeth present. 7–23 teeth present on the ventral margin extending from highest part of the rostrum either to tip or with short distal part unarmed. Number of dorsal teeth on the rostrum before the most proximal ventral tooth 10–14. Rostral formula: (1–2) 15–26 + 1–3 / 7– 23.

First pereiopod ( Fig. 2a View FIGURE 2 ): Stout, chela about 1.8–2.4 times as long as wide, dactylus 2.5–6.0 times as long as wide, 0.8–1.6 length of palm; carpus 1.7–3.3 times as long as wide with shallow excavation on anterior margin.

Second pereiopod ( Fig. 2b View FIGURE 2 ): More slender and longer than first pereiopod. Chela 1.9–3.0 times as long as wide, dactylus 3.5–7.0 times as long as wide, 1.1–1.9 times length of palm; carpus 4.3–6.0 times as long as wide.

Third pereiopod ( Fig. 2c View FIGURE 2 ): Dactylus ( Fig. 2d View FIGURE 2 ): 2.9–4.0 times as long as wide (terminal spine included) with 6–9 spineson flexor margin in addition to the terminal one; propodus 12.7–18.6 times as long as wide, 4.1–6.6 times as long as dactylus.

Fifth pereiopod ( Fig. 2e View FIGURE 2 ): Dactylus ( Fig. 2f View FIGURE 2 ): 3.0–6.01 times as long as wide with 31–61 spiniform setae on flexor margin; propodus 15.2–22.0 times as long as wide, 4.3–5.7 as long as dactylus.

First male pleopod ( Fig. 2k View FIGURE 2 ): Endopod leaf-like with a developped appendix interna in males.

Second male pleopod ( Fig. 2l View FIGURE 2 ): Appendix masculina on second pleopod reaching 0.52 times length of endopod; appendix interna reaching about 0.84 times length of appendix masculina.

Egg size ( Fig. 2j View FIGURE 2 ): 0.35–0.46 × 0.22–0.29 mm.

Preanal carina ( Fig. 2h View FIGURE 2 ): with a strong spine.

Telson ( Fig. 2i View FIGURE 2 ): ending triangular with a posteromedian projection; 1 pair of longer lateral simple setae and 2 to 3 pairs of shorter intermediate simple setae shorter or slightly longer.

Uropodal diaeresis ( Fig. 2g View FIGURE 2 ): with 9–14 short spinules.

Colour pattern. Colours ( Fig. 3 View FIGURE 3 ) vary and tend to match the substrate the shrimp lives on. The body can vary from hyaline to brownish with red dots, with sometimes a large red border on the ventral side of the rostrum. An oblique brown or carmine red band on the cephalothorax is very characteristic. The coloration is lost on preserved animals.

Habitat. All specimens were collected in the lower course of rivers, (altitude 5–25 m), among macrophytes in running water.

Distribution. C. natalensis   occurs in Comoros (Anjouan, Mohéli), Mayotte, Seychelles (La Digue, Mahé, Praslin and Silhouette), Mauritius, in Madagascar and South Africa. Present before in Reunion Island ( Costa 1980; Kiener & Duchochois 1981) this species seems now absent despite extensive propspections made there since ( Fig. 4 View FIGURE 4 ).

RMNH

National Museum of Natural History, Naturalis

NMB

Naturhistorishes Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Atyidae

Genus

Caridina

Loc

Caridina natalensis De Man, 1908

Mazancourt, Valentin De, Castelin, Magalie, Renneville, Clementine, Mlambo, Musa C., Marquet, Gerard & Keith, Philippe 2019
2019
Loc

Caridina brachydactyla brachydactyla

Costa, H. H. 1980: 673
1980
Loc

Caridina nilotica

Roux, J. 1929: 303
Lenz, H. 1910: 568
1910
Loc

Caridina nilotica

Lenz, H. 1910: 568
1910
Loc

Caridina nilotica var. natalensis

Barnard, K. H. 1950: 655
Bouvier, E. L. 1925: 154
Lenz, H. 1912: 5
De Man, J. G. 1908: 262
1908
Loc

Caridina

Keith, P. & Marquet, G. & Valade, P. & Bosc, P. & Vigneux, E. 2006: 50
Holthuis, L. B. 1965: 20
Richters, F. 1880: 162
1880