Caridina, H. Milne Edwards, 1837

Mazancourt, Valentin de, Boseto, David, Marquet, Gerard & Keith, Philippe, 2020, Solomon’s Gold Mine: Description or redescription of 24 species of Caridina (Crustacea: Decapoda: Atyidae) freshwater shrimps from the Solomon Islands, including 11 new species, European Journal of Taxonomy 696, pp. 1-86 : 34-37

publication ID

https://doi.org/10.5852/ejt.2020.696

publication LSID

lsid:zoobank.org:pub:265EDD08-7AA8-4835-B7F6-353E7992633E

DOI

https://doi.org/10.5281/zenodo.4336320

persistent identifier

https://treatment.plazi.org/id/03D487FE-6B4A-5571-FDE9-778BFDEF83B3

treatment provided by

Valdenar

scientific name

Caridina
status

 

Caridina typus H. Milne Edwards, 1837

Figs 2D View Fig , 10 View Fig

Caridina typus H. Milne Edwards, 1837: 363, pl. 25, figs 4–5 (type locality: Mauritius).

Caridina exilirostris Stimpson, 1860: 98 (type locality: Okinawa (Loo Choo) Island, Ryukyu Islands, Japan).

Caridina typus f. typica Bouvier, 1925: 249–253, figs 271–297.

Caridina typus f. caledonica Bouvier, 1925: 253 , figs 296–297 (type locality: New Caledonia).

Caridina typus – Richters 1880: 162, pl. 17, fig. 23. — De Man 1892: 367, pl. 21, fig. 22. — Holthuis 1965: 10–11, fig. 3. — Bossuyt et al. 2004: 480 (GenBank: AY708118 View Materials ). — Cai et al. 2006: 412– 418, figs 13–15 (partim).— Page et al. 2007: 648–650 (Genbank: DQ478558 View Materials DQ478563 View Materials ). — de Mazancourt et al. 2019a: 166, 169–170.

Material examined

SOLOMON ISLANDS – Choiseul Island • 1 ♀, cl 3.8 mm; Creek 1; 06°59.085´S, 156°47.454´E; 132 m a.s.l.; 14 Oct. 2014; P. Gerbeaux, P. Keith and G. Marquet leg.; DNA voucher: CA1355; MNHN- IU- 2018-2824 GoogleMaps 1 ♀, cl 4.0 mm; same collection data as for preceding; DNA voucher: CA1356; MNHN- IU- 2018-2825 GoogleMaps . – Kolombangara Island • 1 ♂, cl 3.9 mm; Sulumuni River ; 08°02.253´S, 157°09.257´E; 148 m a.s.l.; 12 Nov. 2015; P. Keith, C. Lord and G. Marquet leg.; MNHN-IU- 2018-2826 GoogleMaps .

FEDERATED STATES OF MICRONESIA • 1 ♀, cl 3.6 mm; Pohnpei Island, Nanpil River , estuary; 06°56.683´N, 158°12.550´E; 5 m a.s.l.; 13 Mar. 2012; M. Castelin, P. Gerbeaux, P. Keith, G. Marquet and L. Taillebois leg.; MNHN-IU- 2018-2837 GoogleMaps 1 ♀ ovig., cl 3.9 mm; same collection data as for preceding; MNHN-IU- 2018-2838 GoogleMaps .

JAPAN • 1 ♀, cl 6.3 mm; Shikoku , Mugi, irrigation canal; 33°40.796´N, 134°26.024´E; 317 m a.s.l.; 16 Jun. 2017; M. Saito leg.; MNHN-IU- 2018-2827 GoogleMaps 1 ♀, cl 6.7 mm; same collection data as for preceding; DNA voucher: CA1917; MNHN-IU- 2018-2828 GoogleMaps .

MADAGASCAR • 1 ♀, cl 4.5 mm; Antsatoko River ; 13°36.660´S, 50°00.341´E; 29 m a.s.l.; 6 Jul. 2008; C. Ellien, E. Feunteun, N. Mary and T. Robinet leg.; DNA voucher: CA1038; MNHN-IU- 2018-2829 GoogleMaps 1 ♀ ovig., cl 6.9 mm; same collection data as for preceding; MNHN-IU- 2018-2830 GoogleMaps 1 ♀ ovig., cl 7.1 mm; same collection data as for preceding; MNHN-IU- 2018-2831 GoogleMaps .

MALAYSIA • 3 ♂♂, cl 8.0– 8.5 mm; Pulau Langkavi , Sungai datai; 15 Mar. 2008; Schubart, Klaus and Koiler leg.; ZMB 28490 View Materials .

NEW CALEDONIA • 1 ♀ ovig., cl 6.8 mm; Pirogues River ; 22°11.208´S, 166°43.292´E; 102 m a.s.l.; 10 Nov. 2016; G. Marquet, P. Tiberghien and V. de Mazancourt leg.; MNHN-IU- 2018-2832 GoogleMaps 1 ♀, cl 4.9 mm; Natoré River ; 22°03.597´S, 166°53.983´E; 12 Nov. 2016; 5 m a.s.l.; G. Marquet, P. Tiberghien and V. de Mazancourt leg.; MNHN-IU- 2018-2833 GoogleMaps .

PALAU • 1 ♀, cl 4.7 mm; Babeldaob Island , Ngerchokl River; 07°36.527´N, 134°36.958´E; 36 m a.s.l.; 27 Feb. 2011; M. Castelin, P. Gerbeaux, P. Keith, G. Marquet and L. Taillebois leg.; MNHN-

IU- 2018-2839 • 1 ♀ ovig., cl 4.4 mm; same collection data as for preceding; MNHN-IU- 2018-2840 1 ♀ ovig., cl 4.6 mm; same collection data as for preceding; MNHN-IU- 2018-2841 .

GoogleMaps

PAPUA NEW GUINEA – New Britain • 1 ♀ ovig., cl 8.7 mm; Walindi River ; 05°21.187´S, 150°02.699´E; 30 Oct. 2018; R. Causse, P. Keith and C. Lord leg.; MNHN-IU- 2018-2834 GoogleMaps 1 ♀ ovig., cl 5.8 mm; Rangihi swamp; 05°34.549´S, 149°928.943´E; 24 Oct. 2018; R. Causse, P. Keith and C. Lord leg.; MNHN-IU- 2018-2835 1 ♀ ovig., cl 6.4 mm; same collection data as for preceding; DNA voucher: CA2278; MNHN-IU- 2018-2836 .

SEYCHELLES • 1 ♀, cl 9.2 mm; Praslin Island , Nouvelle Découverte River; 04°19.200´S, 55°42.333´E; 16 m a.s.l.; 8 Oct. 2003; P. Bosc, H. Grondin, P. Keith and P. Valade leg.; MNHN-IU-2014-577 GoogleMaps .

SOUTH AFRICA • 1 ♀ ovig., cl 10.1mm; Umtata River ; 31°55.511´S, 29°08.199´E; 2 m a.s.l.; 13 Feb. 2018; L. Maliwa, M. Mlambo, G. Marquet and P. Tiberghien leg.; MNHN-IU- 2018-2843 GoogleMaps 1 ♂, cl 5.7 mm; Mpenjati River ; 30°56.645´S, 030°13.660´E; 93 m a.s.l.; 15 Feb. 2018; P. Kubheka, N. McClurg, T. McClurg, L. Maliwa, M. Mlambo, G. Marquet and P. Tiberghien leg.; DNA voucher: CA2090; MNHN-IU- 2018-2844 GoogleMaps .

VANUATU • 1 ♂, cl 3.9 mm; Epi Island , Buavinai River; 16°48.189´S, 168°11.084´E; 45 m a.s.l.; 27 Oct. 2014; A. Acou, D. Kalfatak, G. Marquet and M. Mennesson leg.; MNHN-IU- 2018-2842 GoogleMaps .

Description

CEPHALOTHORAX. Suborbital angle indistinguishably fused with antennal spine. Pterygostomian margin subrectangular. Rostrum ( Fig. 10m View Fig ): short, 0.3–0.6 of cl, reaching from end of basal segment to end of third segment of antennular peduncle, unarmed dorsally, ventral margin with 0–4 teeth. Eyes well developed. Prominent antennular keel. Antennular peduncle slender, 0.42 (♀) – 0.54 (♂) times as long as carapace. Basal segment 0.50–0.54 times as long as length of the antennular peduncle, second segment 1.42–1.50 times as long as third. Stylocerite reaching 0.70–0.80 length of basal segment of antennular peduncle.

PEREIOPODS. Epipods on first four pereiopods. P1 ( Fig. 10a View Fig ): chela about 1.9–2.7 times as long as wide, movable finger 1.9–3.9 times as long as wide, 0.6–1.3 times length of palm; carpus 1.0–2.2 times as long as wide. P2 ( Fig. 10b View Fig ) more slender and longer than first pereiopod, with chela 2.4–3.3 times as long as wide: movable finger 3.8–5.4 times as long as wide, 1.3–1.8 times length of palm; carpus slender, 5.0–6.5 times as long as wide. P3 ( Fig. 10c View Fig ): stout, dactylus ( Fig. 10e View Fig ) 2.5–3.4 times as long as wide (terminal spiniform seta included), with 5–7 spiniform setae on flexor margin in addition to terminal one; propodus 7.9–10.0 times as long as wide, 3.6–4.6 times as long as dactylus. P5 ( Fig. 10d View Fig ): dactylus ( Fig. 10f View Fig ) 3.2–5.1 as long as wide, with 33–81 spinifrom setae on flexor margin; propodus 10.4–16.9 times as long as wide, 3.2–5.7 times as long as dactylus.

ABDOMEN. Third abdominal somite with moderarely convex dorsal profile. Sixth abdominal somite 0.43–0.48 times as long as carapace, 1.4 times as long as fifth somite, shorter than telson.

TELSON ( Fig. 10i View Fig ). 2.8 times as long as wide, with four to six pairs of dorsal spinules and one pair of dorsolateral spinules; posterior margin with median process, rounded with 5–9 plumose intermediate setae subequal to lateral ones or slightly longer.

MALE PLEOPODS. Pl1 ( Fig. 10j View Fig ): endopod subrectangular, 3.6 times as long as wide, 0.44 times as long as exopod, with appendix interna, on subdistal outer margin, which reaches beyond distal end of endopod on a short length. Pl2 ( Fig. 10k View Fig ): appendix masculina elongated, reaching 0.59–0.76 times length of endopod; appendix interna reaching about 0.46–0.65 times appendix masculina length.

PRE- ANAL CARINA ( Fig. 10g View Fig ). High, unarmed.

UROPODAL DIAERESIS ( Fig. 10h View Fig ). With 15–22 spinules.

EGGS ( Fig. 10l View Fig ). Size: 0.38–0.54 × 0.23–0.32 mm.

Habitat

This species is found from the lower to higher course of rivers (5–317 m). It can be found in areas where the current speed is low, rich in vegetation debris, as well as in zones where the current is strong.

Colour pattern

The colour of the body can vary from pink-orange to blackish brown, sometimes with a brown to white stripe on the back.

Distribution

Caridina typus, the type species of the genus, has a very wide distribution in the Indo-West Pacific area, ranging from South Africa, Madagascar and the Seychelles to Japan, Malaysia, Philippines, Australia, Micronesia (Pohnpei), Papua New Guinea, Solomon Islands, New Caledonia, Vanuatu and Fiji. In contrast to what Holthuis (1965) and Chace (1997) stated, C. typus does not occur in Polynesia, but a species allied to C. jeani Cai, 2010 (see below).

Remarks

According to Chace (1997) and Cai et al. (2006) the type locality of C. typus is unknown. Bouvier (1925) ensures that type specimens have been caught on Mauritius Island but were lost following a move in 1918 caused by bombardments of Paris.

Our specimens fit well with the descriptions of this species occurring in Japan by Cai et al. (2006) by its short rostrum reaching near the end to the third segment of the antennular peduncle (vs to end of second segment of antennular peduncle according to Cai et al. (2006)), unarmed dorsally and armed ventrally, with 0–4 teeth (vs 1–4). P1 carpus 1.0–2.2 (vs. 1.6); P2 carpus 5.0–6.5 (vs 5.0–6.2). P3 dactylus with 5–7 spiniform setae (vs 5–7), propodus 3.6–4.6 as long as dactylus (vs 3.7–4.4); P5 dactylus with about 33–81 spiniform setae (vs 60–77), propodus 10.4–16.9 times long as width (vs 11–14) and propodus 3.2–5.7 times as long as dactylus (vs 3.3–3.7); Pl1 endopod elongate, with distinct appendix interna near distal end of endopod; pre-anal carina lacking spine; telson terminating in posteromedian projection, lateral pair subequal (vs subequal). Uropodal diaresis 15–22 (vs 19–24). Egg sizes 0.38–0.54 × 0.23– 0.32 (vs 0.45–0.48 × 0.23–0.26).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Atyidae

Loc

Caridina

Mazancourt, Valentin de, Boseto, David, Marquet, Gerard & Keith, Philippe 2020
2020
Loc

Caridina

Bouvier E. L. 1925: 249
1925
Loc

Caridina

Bouvier E. L. 1925: 253
1925
Loc

Caridina

de Mazancourt V. & Klotz W. & Marquet G. & Mos B. & Rogers D. C. & Keith P. 2019: 166
Page T. J. & von Rintelen K. & Hughes J. M. 2007: 648
Holthuis L. B. 1965: 10
De Man J. G. 1892: 367
Richters F. 1880: 162
1880
Loc

Caridina exilirostris

Stimpson W. 1860: 98
1860
Loc

Caridina

Milne Edwards H. 1837: 363
1837