224 GOBIES OF THE PHILIPPINES 



opercle; the teeth of first row in upper jaw large and widely 

 spaced, closely followed by a band of very fine depressible teeth 

 in four rows; in lower jaw a band of four rows of erect needle- 

 like teeth of uniform size, slightly larger than inner teeth above ; 

 the scales largest posteriorly, becoming smaller anteriorly, those 

 before dorsal extending to a point above posterior margin of 

 preopercles; eight rows of small scales on opercles; the middle 

 spines of first dorsal longest, their tips prolonged, reaching 

 beyond origin of second dorsal, 2.33 to 2.5 times in head; the 

 second dorsal angulate posteriorly, the last spine longest but not 

 reaching caudal when depressed, 2.2 times in head; the anal 

 similar but a trifle lower; the caudal slightly rounded at tip, 

 shorter than head, 3.5 to 4 times in length ; the caudal peduncle 

 depth 1.5 to 1.7 times in its own length, which is equal to body 

 depth and 1.8 to 2.1 times in head; the pectoral pointed, a little 

 shorter than caudal, extending to a point above anus or anal 

 papilla; the ventrals pointed, their length a little more or less 

 than depth, 1.9 to 2 times in head; the anal papilla slender and 

 pointed in males, much broader and thicker in females. 



The color in alcohol uniform dark brown; the first dorsal 

 irregularly blotched above with blackish brown, especially be- 

 tween third and fourth spines and posteriorly; the second dorsal 

 and anal brown, darker than body, with a black bar on the 

 membrane between each two rays, the bar broad above and ta- 

 pering downward, ending about halfway down; the other fins 

 all uniform brown, darker than body. 



Here described from the type, No. 10600 Bureau of Science 

 collection, and six cotypes, varying in length from 42 to 60 

 millimeters. They were collected by Alvin Scale in 1910, in 

 Palawan. 



Umbra, modern Latin for dark or olive brown. 



106. TAMANKA BIVITTATA sp. nov. 



PLATE 17, FIG. 4 



Dorsal VI, 1-7 ; anal I, 7 ; there are 44 scales in a longitudinal 

 series, 13 in a transverse series, and about 22 before first dorsal. 



The body rather stout, the posterior part laterally compressed, 

 the back convex, the depth 4.8 times in length ; the head broad, 

 blunt, 3.4 times in length, the cheeks bulging, its breadth 1.4 

 times its depth and 1.18 times in its length ; the mouth terminal, 

 oblique, the lower jaw slightly included, the posterior angle of 

 maxillary beneath middle of pupil; the scales on nape and on 

 side anterior to front portion of first dorsal are much smaller 



