244 University of California Publications. [Zoology 



sal and anal fins light, somewhat mottled with large blotches of 

 darker brown; the shades blending into each other. Caudal 

 mottled; a light spot on each side of base: a light bar across 

 middle; its posterior half darker. Pectoral crossed by 3 light 

 bars, the last bordering- the fin. Edge of shoulder girdle dark 

 below pectoral. 



The above description is of the type, 6I/4 inches in total length. 

 Other specimens show the following variations: Head 4 to 4%; 

 depth 1% to lyg. Dorsal 62 to 6S ; anal 46 to 48 ; scales 77 to 83 ; 

 gill rakers 3 to 5 -[- 9 to 11. The dark spots may be indistinctly 

 ocellated : the light spots may be absent. A small specimen has 

 the entire body peppered with black, no light spots, and a black 

 spot at posterior end of dorsal and anal. 



This species may be known from Plenroniclithys verticalis by 

 the shorter spines and tubercles on head, and the lower inter- 

 orbital ridge not reaching to end of snout. From PleuronlclitJnjs 

 coencsus by the more elongated head, the snout not continuous 

 with dorsal outline, the presence of two anterior tubercles, and by 

 the tendency of the posterior spine of interorbital to turn down- 

 wai'd. 



The type of this species was taken in San Diego Bay : it is 

 numbered 9786 in the Stanford University collections. Cotypes 

 were taken at the same locality, and at San Pedro. 



We take pleasure in naming this species for Dr. W. E. Ritter, 

 Scientific Director of the ^Marine Biological Station of San Diego. 



238. Pleuronichthys decurrens Jordan and Gilbert. 

 (Jordan and Evermann, 1898, III, p. 2637.) 



Kjiown from San Francisco to the Santa Barbara Islands 

 (Gilbert, MS. notes); hitherto unrecorded from Southern Cali- 

 fornia. It may be readily known from other species of Pleuro- 

 nicJitJiys by the front of the dorsal extending farther down on the 

 blind side of the head. 



239. Hypsopsetta guttulata ((Tirard). 



DIAMOND FLOUNDER. 



(Jordan and Evermann, 1898, III. p. 2639.) 

 A connnon flounder on the shoal beaches of San Diego and 



