70 CALIFORNIA ACADEMY OF SCIENCES. 



head and nape with minute points; spinous dorsal transpa- 

 rent, a marked black spot on the upper part of the mem- 

 brane between fourth and fifth dorsal spines; other fins 

 plain; a light vertical bar on the posterior margin of preo- 

 percle; no other bars or stripes anywhere. 



This species is closely related to Microgohius signatus 

 Poey, and Microgobobiiis thalassinus Jordan & Gilbert. 

 It differs from the former chiefly in the number of fin 

 rays and number of scales; it differs from M. thalassinus in 

 having its scales firm, though not imbedded as in signatus, 

 and in the length of the caudal and ventral fins. It differs 

 from both in coloration. 



52. Microgobius thalassinus Jordan & Gilbert. 



Atlantic coast of the United States. 



53. Microgobius emblematicus Jordan & Gilbert, rauama. 



54. Microgobius guIOSUS (Girard.) 



Gulf coast of the United States. 



XVI. Barbulifer gen. no v. 



Body entirely naked; numerous barbels around the mouth 

 and on the chin. Dorsal spines 7. Otherwise as in Gohio- 

 soma. 



55. Barbulifer papillosus spec. nov. 



No. 26,186, one specimen. Key West, Florida. 



Length 1\ inches. Head 3|^ (J:| in total); depth 4.\ (5|); 

 D. VII— 9; A. 9. 



Body short and robust, deepest below first dorsal spine; 

 head blunt, profile straight from first dorsal spine to eye, 

 much curved in front of eye; eye longer than snout, 3^ in 

 head; interorbital area two-thirds diameter of eye; snout 

 blunt; mouth small, oblique; maxillary 3 in head, reaching 

 to below anterior margin of pupil; lips thick. 



