NATURAL SCIENCES OF PHILADELPHIA. 197 



PLATICHTHYS Girard. 

 Platichtuys stellatus Girard. 



I'leuronectes stellattis Pallas, Nova Acta, i. 347. 

 Platessa (stellata) Cuv., R. A. 

 Pleuronectes (Platessa) stellatu3 Rich. 

 Platichthy8 rugosus Grd. 

 " (stellatus) Grd. 

 Hah. Western coast generally. 



HYPSOPSETTA Gill, 1862. 



Hysopsetta guttdlata Gill. 



Pleuronichthys guttulatus Grd., Pa., viii. 137. 

 Pleuronectes guttulatus Gthr., iv. 445. 

 Hypsopsetta guttulata Gill, Pa., 1862, 330. 

 Hab. Oregon and California. 



Parophrys Ayresii Gthr., iv. 456. 



Hab. California. 



"The height of the body is rather more than one- half of the total length " (in 

 II. guttulata, I : 2^ 1: 2) ; "the length of the head rather more than one-fifth," 

 (H. gutl. i in young 1: 4$ in old) ; " the distance between the dorsal and cau- 

 dal is about one-third of the depth of the fore portion of the tail " (more) ; " the 

 length of the pectoral equals the distance of the lower eye from the end of the 

 operculum " (less). 



Is it distinct from IT. guttulata ? The color of the latter in the adult ia 

 " uniform brownish lead colored." 



PLEURONICHTHYS Grd. 



Pleckonichthys ccenosus Grd. 



Pleuronichthys ccenosus Grd., Pa., vi. 139. 

 Parophrys ccenosus Grd., iv. 456. 



Hab. California. 



Grd., Pa., vii. 140. 

 Hab. California. 



Subfamily HIPPOGLOSSIN+E Gill. 

 PSETTICHTHYS Grd. 



PSETHCHTHYS MELAN0STICTU8 Grd. 



PARALICHTHYS* Grd. 



PaKAUCIITIIYS MACOLOSD3* Grd. 



Pleuronectes maculosus Grd., Pa., vii. 155. 

 Paralichthys maculosus Grd., Exp., &c, x. 147. 

 Hab. California. 



* Paralicklltys would appear to be normally sinistral from two specimens collected by the Cali- 

 fornian Geological Survey. One of these cannot be distinguished from P. maculosus, the propor- 

 tions, number and arrangement of the blue dots being similar; the spots are normally six dorsal, 

 the first under eighth dorsal ray; the second above the axil of pectoral; the sixth under sixth 

 ray from last, and the intervening equidistant, but the fourth lower; four anal correspond to the 

 last four dorsal ones. In the sinistral specimen, there is also one behind the eye. In the second 

 specimen in the collections, these spots are obsolete. Paralichthys is distinguished from Chxnvp- 

 ietta by its larger ctenoid scales, and small supernumerary linear cycloid ones. 



1864.] 



