POMACENTRUS 49 



I described this species from a cotype, 50 millimeters long, 

 from Bacon, Sorsogon, which is in the museum at Stanford 

 University, and from five other specimens, 60 to 68 millimeters 

 long, collected September, 1925, at Bogo, Cebu, one of which 

 is a female about ready to spawn. The type specimen is in 

 the United States National Museum. 



POMACENTRUS TROPICUS Scale 



PLATE 4, PIG. 2 



Pomacentrus tropicus SEALE, Philip. Journ. Sci. A 4 (1909) 617, 

 pi. 12, fig. 1. 



Dorsal XIII, 14; anal II, 14; scales in lateral series 25; with 

 tubules 17 ; between lateral line and origin of dorsal 3 ; between 

 lateral line and vent 9. 



Body oblong, its greatest depth at origin of ventrals, 2 to 

 2.2 in length; head 3.1 to 3.3; depth of caudal peduncle 6.3 

 to 6.6. Interorbital space convex, contained from 2.6 to 2.8 

 in length of head ; the diameter of the large, round eye 2.8 to 

 3.1, or equal to length of maxillary; snout slightly pointed and 

 a little shorter than maxillary, its tip a little below the horizontal 

 line passing through lower margin of orbit. Mouth almost 

 horizontal, jaws equal, maxillary terminating posteriorly below 

 front edge of eye; teeth in a double series, with rounded tips. 

 Suborbital ring and preopercle strongly serrated, the former 

 with the anterior denticulation enlarged and followed by a cleft; 

 opercle with two flat spines behind. 



Scales on top of head extending to tip of snout; suborbital 

 naked ; base of vertical fins with a high sheath of scales. Dor- 

 sal spines increase in height posteriorly. Soft dorsal and anal 

 slightly pointed; caudal slightly emarginate, with the lobes 

 pointed; both pectoral and ventrals extending past vent, the 

 latter with the outer ray filamentous. 



Colors of fresh specimens are as follows: Top of head from 

 tip of snout to base of spinous dorsal blackish ; eye above edge 

 of pupil also blackish, and rest of body bright orange yellow. 

 Two short pearl white lines in front of each eye, another one 

 on suborbital, and a few spots similarly colored on opercles. 

 A black spot on shoulder, and a smaller one superiorly at base 

 of pectoral ; a pearl white line from each side of belly to anal 

 fin. Outer edge of anterior anal rays and of spinous dorsal 

 black; anus black. 



223796 4 



