200 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxx.. 



upper eye, 3 in head; snout from upper eye, 4.16; maxillary, 3.16; 

 pectoral of eyed side, 2.25; ventral median; caudal rays, 1. 



Anterior body outline strongly arched above; orbital rim of upper 

 eye protruding beyond rest of profile; snout a little produced, blunt; 

 anterior nostril in rather broad, short tube, which does not reach to 

 edge of preorbital; maxillary curved, reaching to below or very 

 slightly past anterior rim of pupil of lower eye; teeth small, in a very 

 narrow band on eyed side, growing wider anteriorly, somewhat 

 smaller on premaxillary. On blind side the teeth on both jaws are in 

 moderately wide bands. Eyes equal in size, the lower slightly more 

 anterior, separated by a narrow naked ridge; vertical limb of pre- 

 maxillary short; gillrakers short and rather sharp, the longest one- 

 half to one-third diameter of pupil, 6 + 10 in number; caudal peduncle 

 very wide and flat, its length one-third of its width; scales large, 

 rather finely but very evidently ctenoid on eyed side, cycloid on 

 blind side; head on eyed side, anterior to posterior rim of pupil above, 

 and posterior end of mandible below, without scales; lateral line 

 turning abruptly upward at a sharp angle two-thirds the head's length 

 behind head, and forming a conspicuous flat-topped arch, as high as 

 half length of head; dorsal beginning slightly on blind side, a little 

 behind middle of eye, length of first ray contained 1.1 in upper eye, 

 longest rays near posterior end of fin, the longest 2.25 in head; pec- 

 torals equal in size; caudal broad and pointed behind; no lateral 

 angles, the sides broadly rounded from tips of the long median rays 

 to lateral edges of fin base. 



Color piidvish slat3^-brown, usually mottled with black; 2 inconspicu- 

 ous semiocellated spots, one near doi'sal and one near anal base a head's 

 length anterior to base of caudal ; less conspicuous dark irregular spots 

 along side above anal and below dorsal, one below arch of lateral 

 line; a black spot on outer rays of caudal; all fins except ventral and 

 pectoral of blind side irregularly spotted and mottled with black. The 

 membrane has drawn away from the scales in our specimen leaving 

 them light at ))ase. 



The type is 155 mm. in entire length, taken at station 37(>8 in Suruga 

 Bay. It is numbered 51106, U. S. N. M. 



Others were taken in Suruga Bay and in Owari Bay. 



(rrXivdos, tile, from the color.) 



17. PLEURONICHTHYS Girard. 



Plerironichthys GiRARi-), Proc. Ac. Nat. Sci. Phila., 1854, p. 139 (ccenoms). 



Heteroprosopon Bleeker, Comptes Rendus Acad. Amsterdam, XIII, 1862, p. 8 



(cornutus). 

 Parophrys Gunther, Cat. Fishes, IV, 1862, p. 454; not of Girahd. 



Eyes and color on the right side. Body deep; head short, with very 

 short, blunt snout; mouth small, with several series of slender, acute 



