BATHYGOBIUS 117 



The body elongate, wedge-shaped, the sides strongly com- 

 pressed posteriorly, the anterior part broad and rounded, the 

 depth 4.4 times in the length; the dorsal profile moderately 

 arched, the head convex, very broad with bulging cheeks, 4 

 times in length, its breadth equal to depth of body, a little more 

 than 0.7 of its own length and 1.44 times its own depth; the 

 convex, broad, bluntly rounded snout 4 times in head; the eyes 

 dorsolateral, looking upward as much as sideways, a little less 

 than snout, 4.5 in head, close together, the interorbital space 

 1.6 times in an eye diameter; the mouth terminal, oblique, the 

 lower jaw slightly projecting, the lips thick and fringed on the 

 inside, the posterior angle of maxillary beneath t the middle of 

 pupil ; the outer row of teeth in each jaw enlarged, with a band 

 composed of three rows of very small teeth behind; in lower 

 jaw also some enlarged teeth in posterior part of inner row; 

 the tongue notched; the body covered with ctenoid scales not 

 very regularly disposed, largest on caudal peduncle, with very 

 small scales before first dorsal as far as in line with anterior 

 margin of opercle ; the head naked ; the pectoral bases and breast 

 partially scaled ; pores distributed on head as in Gobius fuscus ; 

 the supraopercular groove prominent; the dorsals separated, the 

 second, third, and fourth spines of first dorsal longest, 2.25 

 times in head and 1.6 times in depth; the second dorsal and 

 anal similar in shape and height, the longest rays 1.8 times in 

 head and 1.3 times in depth, the anal base shorter than that 

 of second dorsal, the posterior ray of each reaching caudal when 

 depressed; the depth of caudal peduncle 0.7 of its own length 

 and of depth of body; the caudal round pointed, a little 

 longer than body depth, 1.3 times in head, 3.8 in length; the 

 pectoral broad, somewhat- pointed, equal to depth, and extending 

 to a point beyond anal papilla; the ventrals broad, 1.3 times 

 in depth and extending over f of distance to anus, their breadth 

 1.66 times in their own length. 



The color in alcohol uniform dark brown over entire body 

 except head, which is entirely blackish brown; the fins concol- 

 orous, blackish or dark brown; a few blackish spots occur 

 on the membranes of second dorsal. 



Here described from a male specimen, 53 millimeters long, 

 collected at Hongkong by Alvin Scale. Previously known only 

 from a few specimens collected by Bleeker on the coasts of 

 western Sumatra, Nias, and Solor. The Bureau of Science 

 specimen agrees in all essentials except that it has more scales 

 than Bleeker's specimens, which had about 30. 



