100 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



rays arose iipou the bliud side. In the same iudiAddual, no anal si)ine 

 was discoverable outside of the skin ; and the rays of the pectoral on the 

 bUnd side were only ten, and on the colored side twelve. 



In No. 5, no scales were discoverable on the vertical fins. One indi- 

 vidual examined had three tubercles in a vertical line along the poste- 

 rior margin of the upper eye. 



PAROPHRYS Girard. 



Eyes and color on the right side. Form elongate-rhombic ; anterior 

 part of head narrow; snout conic. Eyes contiguous, nearly even, the 

 upper looking obliquely upwards. Nostrils on horizon of superior mar- 

 gin of each orbit, anterior subtubular, posterior with anterior tlai). 

 Mouth unequal, little oblique ; maxillary bones of colored side extending 

 little beyond anterior margin of orbit, much shorter than that of blind 

 side. Lips rather thin and simple. Teeth most developed on the blind 

 side, in a single series, contiguous. An accessory lateral line. Lateral 

 line with a very slight arch, almost straight, but somewhat raised in 

 front. Scales cycloid, those on the cheeks similar. A recumbent spine 

 before the anal. Caudal almost straight on posterior margin. Bran- 

 chiostegals seven. Lower pharyngeals with a double row of teeth. 



Paeophrys vetulus Girard. 



Parophrys hubhardi Gill. 

 Pleuronectcs digrammus Giinther. 

 Parophrys vetiilus Gill. 

 Parophrys vetulus Giiiitlier. 



D. 74-86. A. 54-68. 0. 3-6-1-5-3=18. P. 1-11. V. 6. 



Body elongated, tapering jjosteriorly, less so anteriorly ; the greatest 

 width about a third of the total length; head one-fourth of the same, or 

 rather less. Peduncle of tail rather slender, rather more than one-fifth 

 of the greatest Avidth. Outlines of posterior portion of body only very 

 slightly curved ; snout about f of length of eye, narrow, its convexity 

 meeting that of the anterior part of the dorsal outline above the centre 

 of the pupil of the upper eye. 'Eyes from rather less to rather more than 

 ^ of the length of the head, elliptical, the lower in advance of the upper 

 by a distance equal to about § of the depth ojF the pupil ; upper eye 

 almost on a plane with the dorsal outline. Interocular space narrow, 

 ridge-like, elevated, the ridge continued backwards and obliquely up- 

 wards round the posterior border of the upper eye, and then to the 

 lateral line above the opercle. A short raised ridge along the anterior 

 margin of the lower orbit. Nostrils of both sides in a slight depression ; 

 anterior of right side tubular, that of left side with a posterior liu- 

 guiforra flap. Mouth small, its cleft much longer on the bliud side than 

 on tlie colored ; maxillary of the colored side scarcely passing the front 

 margin of the orbit; mandible projecting in the closed mouth, its tip 



