230 GOBIES OF THE PHILIPPINES 



grayish, darker on posterior part and with a dark bar near 

 top of fin ; the caudal yellowish with a dark brown line extending 

 on upper and lower margins; the anal yellowish at base, be- 

 coming dark on outer half; ventrals yellowish with slight 

 grayish shading; pectorals yellow. 



"Color in alcohol is similar to above but is less bright." 

 (Seale.) 



The above is modified from Scale's original description. His 

 type specimen, 45 millimeters long, from Zamboanga, has dis- 

 appeared. He had two other specimens, of which apparently 

 but one, No. 5106 Bureau of Science collection, 35 millimeters 

 long, collected in Puerto Princesa, Palawan, in 1908, is now in 

 existence. Of these Seale said "they may be a distinct form." 



The Puerto Princesa specimen is in very poor condition, but 

 agrees with a fine one, 60 millimeters long, obtained from a 

 fresh-water spring on Buan Island, lying off the east coast of 

 Tawitawi. These two might be called variety buanensis. 



109a. AMBLYOGOBIUS PERPUSILLUS BUANENSIS var. nov. 



PLATE 18, FIG. 2 



Dorsal VI, 1-14 ; anal I, 13 ; 58 scales in a longitudinal series, 

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



The laterally compressed body oblong, deep, with protuberant 

 belly, the dorsal profile but little curved, the depth 4 times in 

 the length; the head blunt, its width a little less than its own 

 depth or the width of trunk; the anterior profile convex, its 

 length a little more than depth of body, 3.5 times in head and 

 trunk together; the short, broad snout equals eye in length, 

 and is contained 4.25 times in head; the eyes high up, oblique, 

 lateral, the broad interorbital equal to 0.75 of eye or snout; 

 the mouth oblique, rather small, terminal ; the posterior angle 

 of maxillary reaches just beyond front margin of eye; the outer 

 row in lower jaw has five short, thick teeth on each side, ter- 

 minating in a very large backward-curved canine ; the head naked 

 except for four rows of small scales on upper part of opercle; 

 the scales on nape are smaller than those on sides and extend 

 forward almost to margin of eyes; the base of pectoral scaled; 

 the depth of caudal peduncle about equals its length and is 

 2.4 times in length of head ; the broadly pointed caudal 3.6 times 

 in length of head and trunk; the first dorsal low, its height 

 1.36 times in depth of body ; the second dorsal and anal low, of 

 equal height, the posterior ray longest, 0.6 of depth of body; 



