108 U.S. NATIONAL MUSEUM BULLETIN 2 02 Vol. 2 



lar membrane). Depth of caudal peduncle into length of caudal 

 peduncle 0.9 to 1.1 ; angle of snout profile with lengthwise axis of body 

 58 to 64 degrees. 



Teeth of jaws in a single series, long, curved, cjdindrical basally, 

 tips flattened and somewhat truncate; scales extending on snout 

 anterior to nostrils but not to tip of snout; preorbital naked serrate 

 (only in large specimens) on its lower posterior corner; suborbital 

 scaled, serrate in specimens over 40 mm., entire in smallest specimens; 

 preopercular margin scaled, vertical limb finely serrate; spines of 

 dorsal fin gradually increasing in length to last; soft dorsal and anal 

 outlines angular; caudal lobes rounded, pectoral rounded. 



Color in alcohol. — Head and body color varies from light brown to 

 blackish brown; snout and interorbital darker brown than lips and 

 chin; some specimens with a white line on suborbital and round pale 

 spots on cheek and opercle; all with black spot on base of upper pec- 

 toral rays, a black or black-edged scale just above anterior lateral 

 line scale; a black spot larger than pupil but smaller than eye on base 

 of last 3 or 4 soft dorsal rays; scales of sides with dark brown basal 

 spot and dark brown margin, intervening area pale, sometimes white; 

 very often 2 or 3 rows of white spots, above anterior part of anal 

 fin, extending onto scaly sheath of anal between second spine and 

 first soft ray; spiny dorsal membranes dark brown with distal edge 

 black; soft dorsal dark brown basally, distal portion of rays grayish 

 brown, caudal dark brown or black basally, distal portion lighter 

 (specimens under 35 mm. with caudal entirely pale); anal usually 

 entirely black, though sometimes posterior rays are pale; pelvics 

 dark brown; pectoral pale with black basal spot, axil of pectoral 

 dark brown to black. 



Remarks. — We have included with this species those specimens, 

 with a white line under the eye and white spots on side of head and 

 above anterior part of anal, which were called P. taeniops by Cuvier. 

 We have found no meristic or proportional differences in specimens 

 of this coloration and we have many specimens which show these 

 markings very faintly, thus intergrading between typical black 

 nigricans and spotted taeniops. 



POMACENTRUS ALBOFASCIATUS Schlegel and Miiller 



Plates 88,B; 90,D 



Pomacentrus albofasciatus Schlegel and Muller, Verh. Nat. Gesch. Zoo!., 



Leiden, vol. 2, p. 21, 1839-44 (type locality, northeast coast of Celebes). 



SPECIMENS STUDIED 



Guam: 11 lots, 59 specimens, 16 to 74 mm. in standard length. 

 Rota Island: 3 lots, 18 specimens, 15 to 63 mm. 



Description. — Dorsal fin rays XII, 14 to 16 (usually XII, 15); anal 

 rays 11,12 (rarely 11,11 or 13); pectoral rays ii,17 or 18 (usually 18); 



