Austinograea williamsi, HESSLER & MARTIN, 1989

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 : 488

AUSTINOGRAEA WILLIAMSI HESSLER & MARTIN, 1989

Type locality: western Pacific , Mariana Back-Arc Basin, Burke Vent Field, 18° 10.917 –10.948 ′N, 144° 43.210 –43.204 ′E ; 3660 m.

Known range: Known only from the Mariana Back- Arc Basin ( Hessler & Martin, 1989; Tshuchida & Fujikura, 2000; Tsuchida & Hashimoto, 2002).

Material: type locality; Alvin dive 1836; USNM 243241 (holotype male); Alvin dive 1836; 27 April 1987; USNM 234242 (allotype female) .

Pacific Ocean, West of Mariana Island Arc, Mariana Back-Arc Basin:

– Ilium vent field; 18°12.805′N, 144°42.425′E; 3595 m; Alvin dive 1825; 10 April 1987; SIO (paratype, 1 female) ( Hessler & Martin, 1989) .

– exact locality unknown; Alvin dive 182?; depth not known, between 3620 and 3799 m;? April 1987, between 7 and 14 April; baited traps; SIO (paratype, 1 female) ( Hessler & Martin, 1989) .

– Burke vent field, Snail Pits; 18°10.948′N, 144°43.204′E; 3660 m; Alvin dive 1835; 26 April 1987; baited traps; SIO (paratypes, 10 males, 3 females) ( Hessler & Martin, 1989) .

– Burke vent field, Snail Pits and Anemone Heaven; 18°10.917– 18°10.948′N, 144°43.210– 144°43.204′E; 3660 m; Alvin dive 1836; 27 April 1987; baited traps; USNM 243241 (holotype male), USNM 243242 (allotype female), USNM 243243 (paratypes, 3 males, 3 females); LACM (paratypes, 4 males, 1 female); RMNH D37730 (paratypes, 1 male, 1 female), ZMM (paratypes, 1 male, 1 female), NSMT (paratypes, 1 male, 1 female), SIO (paratypes, 29 males, 4 females) ( Hessler & Martin, 1989) .

– Ilium vent field; 18°12.805′N, 144°42.425′E; 3595 m; Alvin dive 1838; 29 April 1987; baited traps; SIO (paratypes, 2 females) ( Hessler & Martin, 1989) .

–Alice Springs hydrothermal vent field; 18°12.599′N, 144°42.431′E; Alvin dive 1843; 3640 m; 4 May 1987; baited traps; SIO (paratypes, 4 males, 3 females) ( Hessler & Martin, 1989). –same data; Alvin dive 1845; 3640 m; 6 May 1987; baited traps; ANSP (paratypes, 1 male, 4 females), MNHN-B 20910 (paratypes, 1 male, 1 female), ZMUC (paratypes, 1 male, 1 female), SIO (paratypes, 14 males, 42 females) ( Hessler & Martin, 1989). − 18°12.9′N, 144°42.5′E, Shinkai 6500; dives 6K#355–357, 3600 m (83 specimens total from all 5 dives) ( Tsuchida & Fujikura, 2000). − 18°N Vent Site; Shinkai 6500; 6K#357; depth not provided; December 1996; non-types, number of specimens not noted ( Tsuchida & Hashimoto, 2002).

–Marianas Back-Arc Basin; 13°23.7′N, 143°55.2′E; Shinkai 6500, dives 6K#353 and 6K#354; 1450 m ( Tsuchida & Fujikura, 2000).

Remarks: This species is very abundant at active vent sites in the Mariana Back-Arc Basin (see photographs in Hessler, Lonsdale & Hawkins, 1988). Tsuchida & Fujikura (2000) described heterochely, relative growth and gonopod morphology in this species.