PLEURONECTIN.« 



363 



Depth of body 3 to 3 J in the length, length of head 4§ to nearly 5. Upper profile 

 of head more or less evenly curved. Snout naked, much shorter than eye, diameter 

 of which is 3 to 3J in length of head ; lower eye a very little in advance of upper ; 

 mterorbital ridge rather high, very narrow, more or less scaled ; postocular ridge 

 scarcely apparent. Mouth not markedly asymmetrical, the maxillary extending 

 to below anterior J of eye, length on ocular side 3f to 4, on blind side 3I to 3I 

 in that of head ; lower jaw scarcely projecting, 2^ to 2J in head. Teeth forming 

 a continuous cutting edge, rather smaller on ocular side of jaws ; dental formula 



-~ ■*- X-'t- . Gill-rakers rather short and stout ; 7 or 8 on lower part of anterior 

 11-15 + 16-IQ 



arch ; width of lower pharyngeals more than 5 in length ; teeth of inner row much 

 larger than those of outer. About 100 scales in a longitudinal series above lateral 



13. M. (X.H.) 1923. 



line. Lateral Une with a very slight curve above the pectoral fin ; a very 

 inconspicuous, short supratemporal branch. Dorsal (84) 87-93 (102) ; origin just 

 behind middle of eye; highest rays about twice in length of head. Anal 75-81. 

 Pectoral of ocular side with 10 or 11 rays (8 branched), length ij to ij in that of 

 head. Pelvics with 6 rays. Caudal with 23 rays (15 branched), rounded or obtusely 

 pointed ; caudal peduncle if to if times as deep as long. Reddish brown ; distal 

 parts of pectoral and caudal fins blackish. 



Type. — United States National Museum. No. 51418. 



Distribution. — Southern Japan ; Corea. 



Specimens Examined : 



U.S. Nat. Mus. 

 Stanford Univ. 

 Tokyo Imp. Univ. 



Genus 24. GLYPTOCEPHALUS. 



Glyptocephalus, Gottsche, 1835, Arch. Naturgesch., i (2), p. 136 [PUurontctes saxicola, Faber] ; Gill, 

 1873, Proc. Acad. Nat. Sci. Philad., xxv, p. 360 ; Norman, 1933, Ann. Mag. Nat. Hist., (10) xi, 

 p. 221. 



Errex, Jordan, 1919, Proc. Acad. Nat. Sci. Philad., Ixx, (1918), p. 343 [Glyptocephalus zachirus, 

 Lockington]. 



