Caridina papuana Nobili, 1905

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 : 46-49

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.4336322

persistent identifier

https://treatment.plazi.org/id/03D487FE-6B46-5565-FD98-7239FB468334

treatment provided by

Valdenar

scientific name

Caridina papuana Nobili, 1905
status

 

Caridina papuana Nobili, 1905

Figs 2N View Fig , 14 View Fig , 26E View Fig

Caridina weberi var. papuana Nobili, 1905: 481 , pl. XII, fig. 1.

Caridina weberi var. papuana – Roux 1917: 591; 1928: 204–205; 1934: 221–222. — Bouvier 1925: 246.

Caridina cf. weberi papuana – Page et al. 2007: 649 (GenBank: DQ478543 View Materials DQ478544 View Materials ).

Caridina papuana – de Mazancourt et al. 2019a: 166, 169–170.

Material examined

Lectotype (here designated)

PAPUA NEW GUINEA • ♂, 3.2 mm; “German New Guinea”, Stephansort, in a small stream in the forest; L. Biró leg.; HNHM 1124-1893 View Materials .

Paralectotypes

PAPUA NEW GUINEA • 4 ♂♂, cl 2.5–3.1 mm, 2 ♀♀ ovig., cl 4.1–4.6 mm; same collection data as for holotype; HNHM 1124-1893 View Materials .

Other material

SOLOMON ISLANDS – Choiseul Island • 1 ♂, cl 3.2 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.; MNHN-IU- 2018-2850 GoogleMaps 1 ♂, cl 3.3 mm; Creek 2; 06°59.085´S, 156°47.913´E; 93 m a.s.l.; 14 Oct. 2014; P. Gerbeaux, P. Keith and G. Marquet leg.; MNHN-IU- 2018-2851 GoogleMaps 1 ♂, cl 3.6 mm; same collection data as for preceding; MNHN-IU- 2018-2852 GoogleMaps 1 ♀, cl 3.2 mm; same collection data as for preceding; MNHN-IU- 2018-2853 GoogleMaps 1 ♀, cl 5.1 mm; same collection data as for preceding; MNHN-IU- 2018-2854 GoogleMaps 1 ♀ ovig., cl 4.6 mm; same collection data as for preceding; MNHN-IU- 2018-2855 GoogleMaps 1 ♀ ovig., cl 3.4 mm; Lopakare River ; 07°01.613´S, 156°46.567´E; 20 Oct. 2014; P. Gerbeaux, P. Keith and G. Marquet leg.; DNA voucher: CA1361; MNHN-IU- 2018-2856 GoogleMaps 1 ♀ ovig., cl 3.4 mm; same collection data as for preceding; MNHN- IU- 2018-2857 GoogleMaps 1 ♀ ovig., cl 3.4 mm; same collection data as for preceding; MNHN-IU- 2018-2858 GoogleMaps 1 ♀ ovig., cl 3.5 mm; same collection data as for preceding; MNHN-IU- 2018-2859 GoogleMaps 1 ♀ ovig., cl 3.6 mm; same collection data as for preceding; MNHN-IU- 2018-2860 GoogleMaps 1 ♀, 4.6 mm; same collection data as for preceding; MNHN-IU- 2018-2861 GoogleMaps 1 ♀, 4.6 mm; same collection data as for preceding; DNA voucher: CA1286; MNHN-IU- 2018-2862 GoogleMaps 1 ♀, cl 5.0 mm; Pisuku River , sector 1; 06°58.951´S, 156°46.582´E; 15 m a.s.l; 10 Oct. 2014; P. Gerbeaux, P. Keith and G. Marquet leg.; MNHN-IU- 2018-2863 GoogleMaps 1 ♀ ovig., cl 4.1 mm; Gu’ma River ; 07°01.764´S, 156°49.899´E; 50 m a.s.l.; 17 Oct. 2014; P. Gerbeaux, P. Keith and G. Marquet leg.; MNHN-IU- 2018-2864 GoogleMaps 1 ♀ ovig., cl 5.3 mm; same collection data as for preceding; MNHN-IU- 2018-2865 GoogleMaps 1 ♀, cl 4.7 mm; same collection data as for preceding; MNHN- IU- 2018-2866 GoogleMaps .

Comparative material

Caridina weberi De Man, 1892

INDONESIA • 3 syntypes, 2 ♂♂, cl 4.4–4.5 mm, 1 ♀ ovig., cl 6.1 mm; Flores Island , Kotting; Dec. 1888; M. Weber leg.; MNHN-IU-2015-1755 .

Description

CEPHALOTHORAX. Suborbital angle indistinguishably fused with antennal spine. Pterygostomian margin rounded. Rostrum ( Fig. 14m View Fig ): curved down, short, 0.3–0.4 of cl, sometimes reaching middle of second segment of antennular peduncle, armed with 9–11 teeth on dorsal margin, 0–1 of them situated on carapace behind orbital margin, ventral margin with 2–4 teeth. Eyes well developed, anterior end reaching to 0.67 length of basal segment of antennular peduncle. Antennular peduncle 0.66 times as long as carapace. Anterolateral angle reaching 0.30 length of second segment, second segment of equal length with third segment. Stylocerite reaching to 0.8 length of basal segment of antennular peduncle.

PEREIOPODS. Epipods on first four pereiopods. P1 ( Fig. 14a View Fig ): chela about 1.9–2.1 times as long as wide, movable finger 2.6–3.2 times as long as wide, 0.7–0.9 times length of palm; short carpus 1.3–1.5 times as long as wide. P2 ( Fig. 14b View Fig ) More slender and longer than first pereiopod, with chela 2.2–2.5 times as long as wide: movable finger 4.3–5.0 times as long as wide, 1.6–2.0 times length of palm; carpus slender, 4.2–5.1 times as long as wide. P3 ( Fig. 14c View Fig ): stout, dactylus ( Fig. 14e View Fig ) 3.0–3.2 times as long as wide (terminal spiniform seta included), with 5–6 spiniform setae on flexor margin in addition to terminal one; propodus 8.9–10.7 times as long as wide, 3.8–4.5 times as long as dactylus. P5 ( Fig. 14d View Fig ): dactylus ( Fig. 14f View Fig ) 2.8–3.9 as long as wide, with 25–31 spiniform setae on flexor margin, first setae enlarged; propodus 12.1–15.1 times as long as wide, 4.2 5.0 times as long as dactylus.

ABDOMEN. Third abdominal somite with moderately convex dorsal profile. Sixth abdominal somite about half length of carapace, 1.7 times as long as fifth somite, slightly shorter than telson.

TELSON ( FIG. 14i View Fig ). 2.6 times as long as wide, with four or five pairs of dorsal spinules and one pair of dorsolateral spinules; posterior margin without a median process, rounded, with 5–9 very long intermediate setae longer than lateral.

MALE PLEOPODS. Pl1 ( Fig. 14j View Fig ): endopod subrectangular, 3 times as long as wide, reaching 0.43 times length of endopod, with an appendix on subdistal outer margin which reaches beyond distal end of endopod on a short length. Pl2 ( Fig. 14k View Fig ): appendix masculina reaching 0.76 times length of endopod; appendix interna reaching 0.64 of appendix masculina.

PRE- ANAL CARINA ( Fig. 14g View Fig ). High, unarmed.

UROPODAL DIAERESIS ( Fig. 14h View Fig ). With 14–21 spinules.

EGGS. Size: 0.36–0.44 × 0.21–0.26mm.

Habitat

This species is largely rheophile and prefers fresh and well-oxygenated waters from the lower to the higher course of rivers.

Colour pattern ( Fig. 26E View Fig )

Body dark all over, sometimes with a white dorsal band running from the rostrum to the telson.

Distribution

This species occurs in the Solomon Islands (Choiseul) and in Papua New Guinea.

Remarks

All former mentions of this taxa were subspecific; given the results of our study, we decided to erect it to specific level ( de Mazancourt et al. 2019a). Our specimens fit well with the types from Papua New Guinea: Rostrum curved down, short, 0.3–0.4 of cl (vs 0.4 in type specimens) sometimes reaching middle of the second segment of the antennular peduncle, armed with 9–11 teeth on the dorsal margin (vs 9–14), 0–1 of them situated on the carapace behind the orbital margin (vs 0), ventral margin with 2–4 teeth (vs 2–5); P1 carpus 1.3–1.5 times as long as wide (vs. 1.4–1.7); P2 carpus 4.2–5.1 times as long as wide (vs 4.5–5.5); P3 dactylus with 5–6 spiniform setae (vs 5), propodus 3.8–4.5 times as long as dactylus (vs 4.3); P5 dactylus with 25–31 spiniform setae (vs 25); uropodal diaresis 14–21 (vs 17–19); small eggs, 0.36–0.44 × 0.21–0.26 mm (vs 0.33–0.38 × 0.24–0.29); appendix interna on the endopod of the male first pleopod. Some specimens from Gu’ma River have one tooth situated on the carapace behind the orbital margin. However, their P5 are similar to those of C. papuana , with the dactylus 3.5 times as long as wide (vs 2.8–3.9), with 27 spiniform setae on the flexor margin (vs 25–31) and propodus 12.1 times as long as wide (vs 12.1–15.1), 4.4 times as long as dactylus (vs 4.2 5.0).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Atyidae

Genus

Caridina

Loc

Caridina papuana Nobili, 1905

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

Caridina papuana

de Mazancourt V. & Klotz W. & Marquet G. & Mos B. & Rogers D. C. & Keith P. 2019: 166
2019
Loc

Caridina cf. weberi

Page T. J. & von Rintelen K. & Hughes J. M. 2007: 649
2007
Loc

Caridina weberi var. papuana

Roux J. 1934: 221
Roux J. 1928: 204
Bouvier E. L. 1925: 246
Roux J. 1917: 591
1917
Loc

Caridina weberi var. papuana

Nobili G. 1905: 481
1905