1880. | Zoology. . oe 
quadrituberculatus of Pallas, is endorsed by Prof. Jordan; but as 
numerous specimens found south of San Francisco are devoid of 
the tubercles upon the cheeks, the latter suspects that there may 
be two species. 
The form described by me in the paper before mentioned as 
Lepidopsetta umbrosa (Girard) Gill, turns out to be a new species; 
but as the Platichthys umbrosus of Girard is, as stated by Dr. Gill, 
synonymous with the Pleuronectes bilineatas of Dr. Ayres, this 
does not increase the number of species in the group. For this 
species the specific name zsolepis is proposed, on account of the 
uniform structure of the scales—a character by which it may at 
once be distinguished from its nearest ally, Lepidopsetta ( Heuro- 
nectes; bilineata. Other characters are, its regularly oval form, 
small eyes, and the comparatively low arch formed on the pectoral 
region by the lateral line. In general appearance it closely 
resembles small specimens of Psettichthys melanostictus, and is 
confounded with that species by the dealers, who fail to notice its 
smaller mouth, rougher scales, and more oval form. 
The curious family of small mailed fishes, known as Agonide, 
has now so many known representatives here that it becomes prob- 
