no. 2075. FISHES FROM SOUTHERN CALIFORNIA— GILBERT. 



359 



List of stations. 



4333 

 4423 

 4539 

 4541 



Off San Diego 



Off San Nicolas Island 



Monterey Bay 



do 



Fathoms. 

 301-487 

 581-594 

 465-609 

 381-633 



RHINOGOBIUS NICHOLSI (Bean). 



Abundant in the harbor at Avalon, Catalina Island. Has also 

 been taken in shallow water, but not between tides, at Monterey. 



RATHBUNELLA HYPOPLECTA (Gilbert). 



A young specimen 29 mm. in extreme length, was taken by the 

 "tangles" on rough bottom near Santa Rosa Island (station 4431), 

 in the Santa Barbara Channel, at a depth of 38 to 41 fathoms. On 

 account of its small size, it is not possible to verify the characters 

 alleged to distinguish this species and the very closely allied R. alleni. 

 The scales are not yet fully developed, but leave the top and sides of 

 head, the nape, and a strip along base of dorsal fin naked. The 

 depth is one-seventh the length to base of caudal. The first frve 

 dorsal rays are shorter than the succeeding and appear slightly 

 differentiated. 



The color pattern is sharply denned on a light background. Along 

 median line of sides, runs a narrow brown streak, marked below by 

 about 10 V-shaped prolongations, and above by an equal number 

 which alternate with the first. The basal half of the dorsal fin is 

 marked by 14 or 15 small dark brown spots, evenly spaced. Anal 

 with a narrow submarginal black streak edged with white. Pectorals, 

 ventrals, and anal unmarked. Dorsal, 46 ; anal, 32. 



PLECTOBRANCHUS EVIDES Gilbert. 



Several specimens, from the following stations : 



4322 

 4365 

 4367 

 4475 



Near San Diego 



do 



do 



Monterey Bay . 



Fathoms. 



110-199 



130-158 



201 



58-85 



Only the type was heretofore known, taken on the coast of Oregon 

 at a depth of 46 fathoms. 



The two canines in the front of the jaw, strikingly developed in the 

 type, are little evident in the majority of these specimens. The 

 nostril is provided with a very thin walled tube, which greatly 

 resembles a simple flap when collapsed, and was so described in the 

 type. As in Poroclinus hempJiilli, there are no pores along the course 

 of the lateral line, but a series of imperforate papillae mark its course. 

 A series of similar papillae, more closely crowded, on the suborbital 

 area. 



