Xenograpsus noveainsularis

Martin, Joel W. & Haney, Todd A., 2005, Decapod crustaceans from hydrothermal vents and cold seeps: a review through 2005, Zoological Journal of the Linnean Society 145 (4), pp. 445-522 : 498-499

XENOGRAPSUS NOVEAINSULARIS TAKEDA

& KURATA, 1977

Type locality: North Pacific Ocean, Ogasawara Islands, Nishino-shima-shinto; from inlet ( Takeda & Kurata, 1977).

Range: Shallow-water hydrothermal vents (volcanic arc) in Japan ( Takeda & Kurata, 1977) and the Marianas ( Türkay & Sakai, 1995).

Material: type locality; under volcanic debris; 25 July 1975; NSMT-Cr. 5472 (holotype male), NMST-Cr. 5473 (allotype), NMST-Cr. 5474 (paratypes, 1 male, 1 ovigerous female).

Remarks: This species was described from shallow volcanic vents off Japan.

XENOGRAPSUS TESTUDINATUS NG, HUANG & HO, 2000

Type locality: Taiwan, Ilan County, Peikuan , Gengxin fish port, rocky reef ; 15 m.

Range: Known from the type locality ( Ng et al., 2000) and additional sites off north-eastern Taiwan ( Jeng et al., 2004a).

Material: Taiwan, Han County, Peikuan , Gengxin fish port, rocky reef; 15 m; 3 October 1991; coll. P.-H. Ho; TMCD (holotype male), TMCD (paratype, 1 male) , NTOU (paratype, 1 male) , USNM (paratype, 1 male) , ZRC (paratypes, 3 males, 4 females) . – Taiwan, Ilan County, Kueishan (= Turtle) Island; 16 m; near thermal vent; 18 April 1999; ASIZ 72116-2 (paratypes, 5 males, 7 females) .

Remarks: In addition to material mentioned in the original description ( Ng et al., 2000), specimens (number not given) were collected from a shallow-water hydrothermal vent off Kueishan Island (Turtle Mountain), coast of Peikuan, Ilan County, north-eastern Taiwan, August 2001 ( Jeng et al. 2004a). Jeng et al. (2004a), who described the larvae of this species, also mention large numbers of individuals observed by scuba divers in this area; the novel feeding behaviour of the species (the crabs are opportunistic feeders that eat dead zooplankton killed by sulphurous vent plumes) was described by Jeng et al. (2004b). An ovigerous female from which larvae were obtained was deposited in the Institute of Zoology, Academia Sinica, Nankang, Taipei, Taiwan ( Jeng et al., 2004a).