Orientomysis crassispinosa ( Liu and Wang, 1980 ) Fukuoka & Murano, 2005

Fukuoka, Kouki & Murano, Masaaki, 2005, A revision of East Asian Acanthomysis (Crustacea: Mysida: Mysidae) and redefinition of Orientomysis, with description of a new species, Journal of Natural History 39 (9), pp. 657-708 : 668

Orientomysis crassispinosa ( Liu and Wang, 1980) comb. nov.

Acanthomysis crassispinosa Liu and Wang 1980: 322–324 , Figure 2 ; 1986: 195 (list); Müller 1993: 191 (list); Liu and Wang 2000: 243–245, Figure 90.

Acanthomysis crossispinosa [sic]: Wang and Liu 1997: 215 (list).

Type locality

22 ° 009N, 113 ° 309E, coastal waters of Guangdong, southern China .

Remarks

Direct examination of this species was not made. This species, however, clearly belongs to Orientomysis because it is in agreement with the new generic diagnosis.

Orientomysis crassispinosa was originally described by Liu and Wang (1980) on the basis of two female specimens collected from the South China Sea off Guangdong; no male specimens have been recorded .

This species is similar to O. aokii and O. aspera in that the telson is armed with two pairs of robust spines on the apex and the abdominal somites are without any spine rows. However, it is distinguished from the latter two species by the absence of spines in the statocyst region of the endopod of the uropod (single spine present in O. aokii and O. aspera ), and from O. aokii by the hispid body (smooth in O. aokii ).

Distribution

This species is known only from the South China Sea off Guangdong. Specimens were collected from a depth of 55 m ( Liu and Wang 1980) .

Figures

Figure 2. Orientomysis hwanhaiensis (Ii, 1964) comb. nov. (A, B) Telson, dorsal; (C–F) distal end of telson, dorsal. (A) Male (12.2 mm), syntype; (B) female (13.6 mm), syntype; (C) male (9.8 mm), East China Sea, NSMT-Cr 15559; (D) male (7.5 mm), East China Sea, NSMT-Cr 15559; (E) female (10.7 mm), East China Sea, NSMT- Cr 15559; (F) female (10.6 mm), East China Sea, NSMT-Cr 15559.