.■Irtwgh 



i ;<//>.. 



FLATFISHES (HETEROSOMATA) 



I-. ARNOCLOSSUS JAI'ONICUS. Hiibbs 

 ri(5, HuMis, 1915. Tror. U.S. \al. Mus., xhiu, p. .(M, P 



Depth of body about 2 J in the length, length of head 3 J to 3J. Upper profile 

 of head only moderately convex above and behind eyes. Snout about as long 

 as eye, diameter of which is 3 g in length of head ; eyes separated by a low ridge, 

 the lower very slightly in advance of upper. Maxillary extending to below middle 

 of eye, length a little more than twice in that of head. Upper jaw with 4 canine 

 teeth anteriorly ; 8 moderate canines on each side of lower jaw. 8 short, pointed 

 gill-rakers on lower part of anterior arch. Scales all cycloid ; 63 to 64 in lateral 

 line. Width of curve of lateral line about twice in length of head. Dorsal 97-99 ; 

 second ray a little prolonged. Anal 74-79. Pectoral of ocular side with 13 rays, 

 length rj m that of head. Caudal rounded. Pale brownish, with indications of 



, j„po 



U.S.N.M. 



cept pectorals and pelvic 



darker mottling ; all the fins dark or with dark spots 

 of blind side. 



Type. — United States National Museum. No. 75671. 



Distribution. — Japan. 



Known only from the type (lob mm ) from south of Kiusiu, 84 fms, ; and two 

 other specimens (41, 8g mm.) from oft Hondo and Siiruga Gulf, 47 fms,, respectively. 



18, ARNOGLOSSUS BASSENSIS, Norman. 



Uosstis basscnsis, \ 



19:^6, Biol. Re 



, p. 246, tig. 6 ; .McCillIoch, igjr, 



p. 277- 



Depth of body 2J to 2J in the length, length of head 4^ to 42. Upper profile 

 of head only moderately convex above and behind eyes. Snout a little longer than 

 eye, diameter of which is 5 to 5i in length of head ; eyes separated by a low, narrow 

 ridge, the lower a little in advance of upper. Maxillary extending to below anterior 

 I or i of eye, length 2§ to 2 J in that of head ; lower jaw about twice in head. Teeth 

 of upper jaw small laterally, becoming larger anteriorly, not close-set ; .some of the 

 teeth on ocul.Tr side nf lower jaw movable. 7 to 11 rather short, pointed giU-rakers 



