FAMILY POMACENTRIDAE — WOODS AND SCHULTZ 105 



3a. Snout scaled anterior to nostrils but not to tip of snout; lower margin 

 of preopercle scaled (at least in adults); dorsal fin rays XII, 16 

 (sometimes 15 or 17); anal rays 11,13 (sometimes 14, rarely 12). 



P. nigricans (Lacepfede) 



36. Snout naked anterior to nostrils, scales barely reaching line drawn 



between nostrils; lower margin of preopercle naked; dorsal fin rays 



XII, 15 (sometimes 14, rarely 16); anal rays 11,12 (rarely 11 or 13). 



P. albofasciatus " Schlegel and Miiller 



lb. Dorsal spines XIII. 



4a. Teeth of jaws uniserial, dorsal rays XIII, 16 (rarely 15 or 17), preorbital 

 naked, no enlarged horizontal or curving spines on lower posterior 

 part; suborbital scaled, finely serrate; scales of sides with pale centers 

 and broad dark brown margins, forming diagonal transverse lines; 

 no black spot on opercle or on dorsal; a small black spot on base of 

 upper pectoral rays, and axil black; anal rays 11,13 (rarely 14). 



P. jenkinsi Jordan and Evermann 

 4&. Teeth of jaws biserial at least in part, sometimes the inner row of teeth 

 found only in center of jaws, or on sides, represented as small teeth 

 between the larger ones. 

 5a. Preorbital with one or two large, posteriorly directed curved spines; 

 opercle with a black spot; orbital ring naked. 

 6a. Dorsal rays XIII, 15 or 16; anal 11,16 (rarely 14 or 15); small black 

 spot on base of upper pectoral ray; large black spot, sometimes 

 white-bordered, on base of 7th to 12th soft dorsal rays. 



P. vaiuli Jordan and Scale 

 66. Dorsal rays XIII, 13 (rarely 14); anal 11,13 (rarely 14); no black spot 

 on base of upper pectoral ray; no black spot on base of soft dorsal 

 rays; scales of body with short vertical blue or pale bar and dark 

 base and margin, these forming alternating light and dark hues; 

 a blue or white streak or line from dorsal edge of eye to tip of 



snout P. pavo (Bloch) 



56. Preorbital entire, without a posteriorly directed spine on its lower 

 posterior margin. 

 7a. Opercle without a black spot; greatest depth 1.9 to 2.2. 



8a. Dorsal rays XIII,11 (rarely 10 or 12); anal 11,12; suborbital narrow, 

 scaled; a black spot about size of eye on bases of last 3 dorsal 

 spines and one on first two anal rays; anus black; caudal 

 peduncle yellow; head and body fight reddish brown; small 

 indistinct blue dots on head and anterior part of body. 



P. traceyi, new species 



86. Dorsal rays XIII,14 or 15; anal 11,13 or 14; suborbital narrow, 



naked, except possibly a scale or so on melanopterus. 



9a. Middle dorsal spines 5th to 7th longer than last; no black spot on 



base of pectoral; body ground color pale yellowish with a 



black band on nape narrowing ventrally to opercles, a 



second wider band between 6th dorsal spine and first soft ray, 



narrowing ventrally and fading about middle of sides; soft 



portions of vertical fins, pectorals, and pelvics pale; dorsal 



rays XIII, 14 or 15; anal 11,14 P. bif asciatus Bleeker 



" Not yet found in Northern Marshall Islands. 



