FAMILY POMACENTRIDAE — WOODS AND SCHULTZ HI 



broad blackish margins forming diagonal transverse lines fading on 

 belly and caudal peduncle; caudal peduncle often light reddish brown 

 but usually the same color as body; scaly sheaths of vertical fins dark 

 blackish brown; membranes of spiny dorsal blackish, soft dorsal and 

 anal very dark brown anteriorly and basally, lighter posteriorly and 

 distally; caudal fin dark blackish brown or dark brown on basal %, 

 paler on distal %; intensely black spot on base of upper pectoral 

 rays; pectoral light grayish brown, axil black; pelvics black. 



Young with head and body paler than adults but with diagonal 

 transverse lines on sides; posterior half of body Ught yellowish brown; 

 caudal fin pale yellowish; large black spot covering almost entire 

 scaly basal portion of pectoral. 



Color when alive. — Head and body dark purplish brown, almost 

 blackish, tip of snout and chin blackish, lips pale, sides with distinct 

 narrow transverse lines following margins of scales, scaly bases of 

 vertical fins dark purplish black; distal portion of spiny dorsal mem- 

 branes brown; distal margins of soft dorsal and caudal fins pale, anal 

 fin blackish, except distal tips of posterior soft rays; pelvics black; 

 black spots on pectoral base. 



Remarks. — This species has been confused with Pomacentrus inorna- 

 tus De Vis but on the basis of Whitley's redescription of the holotype 

 it is certainly distinct; P. jenkinsi has a scaly suborbital and one or 

 more soft rays in the dorsal fin than P. inornatus. 



POMACENTRUS VAIUU Jordan and Scale 



Plate 89, B 



Pomacentrus vaiuli Jordan and Seale, Bull. U. S. Bur. Fish., vol. 25 (1905), 

 p. 280, pi. 40, fig. 2, 1906 (type locality, Apia and Pago Pago, »Samoa). 



SPECIMENS STUDIED 



Bikini Atoll: 19 stations, 107 specimens, 24 to 64 mm. in standard length. 



Eniwetok Atoll: 2 stations, 7 specimens, 43 to 74 mm. 



Rongelap Atoll: 8 stations, 71 specimens, 25 to 63 mm. 



Rongerik Atoll: 2 specimens, 29 to 31 mm. 



Likiep Atoll: 1 lot, Univ. Washington, 3 specimens, 60 to 62 mm. 



Description. — Dorsal rays XIII, 15 (sometimes 16); anal 11,14 to 16 

 (usually 16); pectorals ii,15 or 16; transverse scale rows from upper 

 edge of gill opening to base of caudal rays 25 to 28 (usually 27 or 28), 

 with 3 between lateral line and origin of dorsal fin; 9 or 10 between 

 lateral line and origin of anal; upper part of lateral line with 17 or 18 

 tubular scales; gill rakers 7 + 1 + 14 (3 counts). 



Depth of body 1.8 to 2.1 ; length of head 2.9 to 3.3; both in standard 

 length. Snout 3.4 to 4.5; eye 2.4 to 3.3; preorbital width 9.2 to 16.2; 

 length of upper jaw 3.2 to 3.4; postorbital part of head (hind margin 

 of eye to upper edge of gill opening) 2.4 to 2.9; interorbital width 3.5 



