ILATFISHMS (HEIEROSOMATA) 



(ienusf). CLEISTHENES. 



CUisthencs. Jorilaii .uiil St.irk^, i.)o4, Hull. l\S. Cimi. Fish., xxii, (no^). p. (.;:; UUiWunc^ pmrlvriim, 



Jordan and Starks]. 

 Prolopsclla, Schmidt, 1904, I'lsr. Mar. Orirnt.. p. 2v: [Hippoglossnides hcrzenslcini, Srhniidt]. 



Close to Hippoglossoides, but with the upper eye on the dor.sal surface of the head, 

 its range almost entirely vertical ; snout more or less scaled ; eyeballs not scaled : 

 teeth rather small, scarcely enlarged anteriorly ; dorsal fin commencing on blind 

 side of head, well behind nostrils and above posterior part of eye ; rays of dorsal 

 and anal fins more or less scaled on both sides : middle rays of pectoral fin branched. 



Two species from the north-western Pacific. 



Synopsis of the Species. 

 15 to 2! (occ- J3) gill-rakers on lower part of anterior arch 

 20 to 25 (occ. 27) gill-rakers on lower part of anterior arch 



hcfzensteiiii. 

 I. piiictiifuni. 



I. CLEISTHENES HERZENSTEINI (Schmidt). 



Htppn^loisaidci hcrzfiisteini, Schmidt, 1904, Pise. .Mar. Orient., p. 229. 

 I'r<iltipsdta hcr:emtcini, Jordan and Starks, 1906. Proc. U.S. Xat. Mus., xxxi, pp 



1912, Proc. L'.S. Xat. -Mus., xlii.p. 439 ; Jordan, Tanaka and Snyder, 1913, 



xxxiii (I), p. 321. 

 Cltisthcnes herzenstcmi, Hubbs, 1915, Proc. U.S. .\at. Mus., xlviii, p. 473; H 



Zool. Japon., ix, p. 370 ; Soldatov and I.indberg, 1930, Bull. Pac. Sci. Fis 



Schmidt, 1931, C.R. Acad. Sci. Russ., p. 316. 

 ClHsthenes pinelnrum, Jordan and Hubbs, 192.t, Mem. Carnesic Mus., x, p. 29S. 



194. 5 

 J. Coll 



:5 ; Snyder, 

 Sci. Tokyo, 



Fig. z^i.—CkiMenes hcr-.ensleiiii. B..M. (X.H.) 1923 



Depth of body i\ to 2f in the length, length of head 3i to 33. Snout about as 

 long as eye. diameter of which is 4J to 5} in length of head, and more than twice the 

 interorbital width ; anterior margins of eyes about level. Maxillary extending to 

 below middle of eye. or not quite as far, length 2J to about 3 in that of head : lower 

 law projecting, 2 to 2J in head. (15) 17 to 20 (occasionally 23) gill-rakers on lower 

 part of anterior arch. Scales ver\- variable ; generally more or less ctenoid on ocular 



