336 GOBIES OF THE PHILIPPINES 



jaw, with a pair of symphysial canines in lower jaw. It is 

 altogether probable that Amblyopus taenia, Giinther belongs here, 

 as it has these fins elongate also and agrees in most other re- 

 spects ; the inner teeth are not described. 

 Sericus, of the Chinese. 



169. SERICAGOBIOIDES LIGHTI sp. nor. 



PLATE 26, FIG. 2 



Dorsal VI, 1-39 to 44 ; anal I, 38 to 43. 



The body very elongate, thin, ribbonlike, all the vertebrae 

 visible, its depth 14 to 14.9 times in length, the tail 1.75 to 1.8 

 times head and trunk together; the angular bony head sub- 

 quadrangular, 7.4 times in length, 1.7 times in trunk, its depth 

 greater than its breadth and 0.1 greater than that of body; the 

 top of head horizontal, the snout short, convex, with a median 

 sharp hump, its tip broadly rounded, 3.4 times in head; the 

 very small but distinctly visible eyes laterodorsal, each at the 

 bottom of a broad shallow pit, the interorbital space nearly 

 1.4 times in snout, 4.7 to 4.8 times in head ; the mouth very large, 

 strongly oblique, the lips thickened posteriorly, the long, curved 

 chin prominent, the posterior angle of maxillary extending well 

 beyond a vertical from eye; the teeth as given for the genus; 

 the head naked, the body apparently so, the caudal third thickly 

 covered with minute scales invisible to the naked eye; these 

 practically disappear on anterior half of body but a lens reveals 

 the presence of scattered scale pits- as far forward as the region 

 above basal part of pectoral ; the narrow, elongate, pointed cau- 

 dal 4.3 to 4.5 times in length, 1.64 to 1.74 times head; the broad 

 pectoral very long, pointed, equal to or 1.13 times head, 6.6 to 

 7.4 times in length; the ventrals large, long, pointed, with a 

 strong frenum, attached to belly for over a third of the length, 

 1.13 to 1.07 times in head and 8 to 8.4 times in length. 



The color in alcohol very pale brown or gray-brown, the oper- 

 cles and predorsal region darker brown; the dorsals, anal, and 

 caudal with violet-brown or blackish brown margins, the pos- 

 terior half of caudal the same color ; the other fins all pale. 



Here described from two specimens, 112 and 126 millimeters 

 long, collected at Amoy, China, by Prof. S. F. Light, for whom 

 I take pleasure in naming the species. The Bureau of Science 

 collection also contains eleven additional specimens from the 

 same locality, 74 to 120 millimeters in length. These present 

 no differences except that some have the body a little rounded 



