Carcinoplax indica Doflein, 1904

Castro, Peter, 2007, A reappraisal of the family Goneplacidae MacLeay, 1838 (Crustacea, Decapoda, Brachyura) and revision of the subfamily Goneplacinae, with the description of 10 new genera and 18 new species, Zoosystema 29 (4), pp. 609-774 : 634-635

Carcinoplax indica Doflein, 1904

Carcinoplax longimanus indicus Doflein, 1904: 114 , 306 (table), pl. 35, figs 1, 2 [Andaman Sea]. — Sakai 1969: 269 [in list].

Carcinoplax logimana indica – Tesch 1918: 154 [in list]. — Serène 1968: 89 [in list].

Carcinoplax indica – Sakai 1977: 55, figs 1, 2, pl. 4, fig. 1 [ Japan]. — Guinot 1969b: 524 [discussion]; 1989: 276 [discussion], figs 5, 7, pl. 1, figs E-H, pl. 2, figs E-G [Philippine Is]; 1971: 1081 [in list]. — Serène & Lohavanijaya 1973: 62 [in list], 63 [in key]. — Serène & Vadon 1981: 118, 119, 123, 126, pl. 4, figs A, B [Philippine Is]. — Matsuzawa 1993: 21, fig. 1 (colour) [ Japan]. — Ng et al. 2001: 33, fig. 7c [ Taiwan]. — Hsueh & Huang 2002: 119 [in key], 119, figs 6, 8B [ Taiwan]. — Ng & Davie 2002: 378 [Andaman Sea coast of Thailand]. — Karasawa & Kato 2003b: 130 [in list]. — Karasawa & Schweitzer 2006: 26 [in list].

Carcinoplax confragosa – Zarenkov 1972:241, fig. 7-1 [ Vietnam] (not Carcinoplax confragosa Rathbun, 1914 ).

Not Carcinoplax indica – Guinot 1969b: 524, figs 65-67, 75, 76 (= Carcinoplax monodi Guinot, 1989 ).

Not Carcinoplax longimana indica – Takeda 1975: 149, pl. 2, figs 2, 3, pl. 3, fig. 2 (= C. longimana (de Haan, 1833)) .

TYPE MATERIAL. — 4 syntypes, 2 extant ♂♂, Valdivia ( ZMB 13606).

TYPE LOCALITY. — India, Nicobar Is, 06°54’N, 93°28.8’E, 226 m.

MATERIAL EXAMINED. — Philippine Islands. South China Sea, MUSORSTOM 1, stn CP 21, 14°01’N, 120°23’E, 223- 174 m, 21.III.1976, 1 ♂, 1 ♀ ( MNHN-B 10063).

Bohol, Balicasag I., off Panglao I., 200-300 m, tangle nets of local fishermen, XII.2000, 1 ♂ ( ZRC 2001.0363 ). — 50- 500 m, 28.XI.2001, 1 ♂, 3 ♀♀ ( ZRC 2001.0541 ). — 200- 300 m, VI.2002, 1 ♀ ( ZRC 2002.0654 ). — Purchased from fishermen, 25-30.VII.2003, 2 ♂♂, 1 ♀ ( ZRC 2004.0749 ). — 50-500 m, III.2004, 2 ♂♂ ( ZRC 2004.0708 ). — I.2004, 1 ♂, 2 ♀♀ ( ZRC 2004.0769 ) ; II.2004, 7 ♂♂, 5 ♀♀ ( ZRC 2004.0770 ). — III.2004, 1 ♂ ( ZRC 2004.0771 ). — 29.V.2004, 2 ♂♂ ( MNHN-B 29724 ) .

Panglao I., Maribohoc Bay, stn P2, tangle nets of local fishermen, XI.2003, 1 ♀ ( ZRC 2006.0180). — 100- 300 m, T. J. Arbasto coll., XI.2003 - IV.2004, 5 ♂♂, 2 ♀♀ ( ZRC 2004.0772).

PANGLAO 2004, stn P1, 09°36.00’N, 123°45.00’E, 150-200 m, tangle nets of local fishermen, 7.VII.2004, 1 ♂ ( MNHN-B 29724). — Stn P5, Pamilacan I., 09°30.00’N, 123°54.60’E, 100 m, tangle nets of local fishermen, 1.VI.2004, 1 ♀ ( ZRC 2004.0773).

PANGLAO 2005, stn CP 2332, Maribohoc Bay, 09°38.8’N, 123°45.9’E, 396-418 m, 22.V.2005, 1 ♀ (ZRC 2006.0213). — Stn CP 2406, Maribohoc Bay, 09°40.6’N, 123°46.8’E, 334-387 m, 1.VI.2005, 1 ♀ parasitised by sacculinids (ZRC 2006.0180).

Indonesia. Tanimbar Is, KARUBAR, stn CP 79, 09°16’S, 131°22’E, 250- 239 m, 3.XI.1991, 1 ♂ ( MNHN-B 29372). — Stn CP 83, 09°23’S, 131°00’E, 285-297 m, 4.XI.1991, 2 pre-adult ♀♀ ( MNHN-B 29389).

Solomon Islands. SALOMON 1, stn CP 1804, 09°32.0’S, 160°37.4’E, 309-328 m, 2.X.2001, 1 ♀ ( MNHN-B 29398).

DISTRIBUTION. — Andaman Sea ( Doflein 1904; Davie et al. 2002; Ng & Davie 2002) to the western Pacific Ocean from Taiwan ( Ng et al. 2001, Hsueh & Huang 2002) to Vietnam ( Zarenkov 1972, as C. confragosa ) and the Philippine Is ( Guinot 1989), and now Indonesia (Tanimbar Is) and the Solomon Is. Depth: 110- 418 m. Specimens were also obtained from tangle nets of local fishermen in the Philippines that obtained material from estimated depths of 50- 500 m.

COLOUR. — Many, but not all, preserved specimens have a large red spot on the dorsal surface of the carapace (see Hsueh & Huang 2002: fig. 8B). The spot in live individuals is red-brown bordered on each side by a thick, irregular yellow stripe.

REMARKS

Small adult specimens of C. indica are characterised by an almost quadrate carapace and nearly identical acute outer orbital and anterolateral teeth that give the appearance of a carapace with three anterolateral teeth ( Hsueh & Huang 2002: fig. 6A). The teeth are much reduced in large individuals and the carapace becomes rounded ( Guinot 1989: pl. 1, figs E-H). The teeth nearly disappear and are reduced to slight swellings in the largest individuals. The carapace is smooth except many low, round tubercles on the hepatic region.

The specimen described and illustrated by Zarenkov (1972: 241, fig. 7.1) and identified as C. confragosa Rathbun, 1914 , clearly belongs to C. indica (see Remarks for C. confragosa above).