72 PROCEEDINGS OP UNITED STATES NATIONAL MUSEUM. 



d. Lateral line simple, nearly straight. 



/. Dorsal fiu very long, of more than ninety rays ; body elongate ; scales 

 smooth Glyptocephalus. 



6. Teeth forming a sharp cutting edge, not developed at all on colored 

 side ; pectoral of colored side not produced pacificus. 



7. Teeth forming a blunt edge, continued more than half-way along 

 colored side; pectoral of colored side produced zacMrua. 



ff. Dorsal tin moderate ; scales developed as scattered stellate tubercles. 



Platichthys. 



8. Eyes and color sometimes on right, sometimes on left side. 



stellatus. 

 dd. Lateral line with an accessory dorsal branch. 



e. Teeth slender, acute, in several series ; lateral line nearly straight ; body 

 deep, short ; lips thick Pleuronichthys. 



9. Interocular space rather narrow, smooth, without ndges . . guttulaius. 



10. Lijis plicate ; dorsal continued downwards on blind side of head ; 

 interocular space veiy narrow, forming a raised tubercular ridge. 



coemsus. 

 ee. Teeth straight, blunt, in a close row, chiefly developed on blind side. 

 g. Scales cycloid, those on cheeks similar ; lateral line nearly straight. 



Pauophrys. 



11. Snout narrow; upper eye diverted obliquely upwards vetulus. 



gg. Scales rough ; lateral line arched ; form oval Lepidopsetta. 



12. Scales on cheeks ctenoid umbrosa. 



13. Scales on cheeks tuberculate hillneata. 



All the species that I have examined have seven branchiostegals on 

 each side, and the lateral hue continued to the end of the caudal on both 

 blind and colored sides. As I am not familiar with the Atlautic species, 

 I cannot be certain whether these are to be considered as family char- 

 acters; they are not mentioned in Gilnther's diagnosis of the Pleuro- 

 nectidce. 



HIPPOGLOSSUS Cu\4er. 



Mouth large, the large broad maxillary one-third, or not much more 

 than one-third, of the length of the head. Teeth of ui)per jaw in a double 

 series. Eyes and color on the right side. Gill-rakers short, compressed, 

 widely set. Lower pharyngeal teeth in two rows ; branchiostegals seven. 

 Ventrals lateral; caudal emarginate, the outer rays produced. Scales 

 very small, not ciliated. Lateral line with a semicircular arch in front. 



e 



HIPPOGLOSSUS VULGARIS Cu\ier {Tj. 



{Hipimglossua vulgaris ? Ajvea.) 



D. 102. A. 73. P. 10. V. G. 



The fin-formula given above is that of Ayres. The species is of rare 

 occurrence on this part of the coast, but is occasionally brought to mar- 

 ket. As I have as yet only seen one specimen, or rather a part of one, 

 as the greater i)art of the body had been cut away and sold when I saw 

 it, I cannot pronounce as to its specific identity with S. vuhjaris. The 

 only notes I could make were as follows : Teeth in a double row in both 



