114 BULLETIN" 100, UNITED STATES NATIONAL MUSEUM 



1 example, Tifu Bay, Bouro Island. December 10, 1909. Length, 96 mm. 



1 example, Tidore Island, south of Ternate. November 25, 1909. Length, 



94 mm. 

 55901 U.S.N.M. Bacon. Philippine Commission. Length, 73 mm. Type of 



Pomacetitrus philippmus. 



POMACENTRUS BREVICEPS (Schlegel and Miiller) 



Glyphisodon breviceps Schlegel and MtJLLER, Verb. Nat. Ges. Nederl. Zool., 



1839-1844, p. 23. Indian Ocean, southwest coast of Sumatra. 

 Olyphidodon 'breviceps GiJNTHER, Cat. Fish. Brit. Mus., vol. 4, 1862, p. 42 



(copied). 

 Amhlypomacentrtis breviceps Bleekeb, Atlas Ich. Ind. N^erl., vol. 9, 



1877, pi. 404 (5), fig. 7; Nat. Verb. Holl. Maatscb. Harlem, (No. 6), 



ser. 3, vol. 2, 1877, p. 69 (Sumatra, Bawean, Celebes, Sumbawa, Timor, 



Halmaheira, Ternate, Buru, Ceram, Amboina). 

 Pristotis trifasciatus Bleeker, Journ. Indian Arch., vol. 2, 1848, p. 637. 



Sumbawa. 

 Pomacentrus nematoptertis Bleeker, Nat. Tijds. Ned. Indie, vol. 3, 1852, 



p. 285. Amboina.— GiJNTHER, Cat. Fish. Brit. Mus., vol. 4, 1862, p. 42 



(East Indies). 



Depth 21/5 to 21/3; head 24^ to 3, width 13^ to 2. Snout 43^ to 

 4%; eye 2% to 2-%, greater than snout or interorbital; maxillary 

 reaches opposite front pupil edge, 2% to 3 in head ; teeth compressed, 

 uniserial, ends obtuse; interorbital 3% to 314, broadly convex; 

 infraorbital edge and hind preopercle edge finely serrate. Gill 

 rakers 8+ 15, lanceolate, slender, long. 



Tubes in lateral line 15 to 17, pores in straight section 8 or 9-)-0 to 

 2; 3 scales above lateral line, 8 below, 11 or 12 predorsal not quite 

 forward far as front eye edge; 2 rows of cheek scales, none on in- 

 fraorbital or preopercle flange. Scales with 6 or 7 basal radiating 

 striae; apical denticles 60 to 88, with single series of basal elements; 

 circuli very fine. 



D. XIII, 11, I or 12, I, thirteenth spine 2 to 2% in head, fifth ray 

 ll^ to 1%, first ray often simple; A. II, 11, i to 13, i, second spine 

 1"% to 1^^, sixth ray I14 to ly^ ; least depth of caudal peduncle 2 to 

 21/5; caudal emarginate, 2% to 2% in combined head and body; pec- 

 toral 31/2 to 334 ; ventral 23^ to ^y^. 



Generally pale or whitish, each scale with grayish spot. Broad 

 dusky brown band includes interorbital and eye down over cheek, 

 not always reflected below on under surface of head. Second broad 

 dusky brown saddle includes front of soft dorsal and front of back. 

 Third broad dusky brown band includes last dorsal spines and back 

 below. Fins all pale or whitish, except for dark saddles and some 

 of rayed vertical fins with obscure brown mottlings. Some examples 

 rather soiled or swarthy and in these iris now dark. In j^ale ex- 

 amples iris whitish. 



East Indies. The submarginal dark line shown in Bleeker's fig- 

 ure not evident in our examples. Also Bleeker does not show the 



