600 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxvi. 



dorsal. Caudal rounded, 1.3 in head. Pectoral rather pointed, 1.5 

 in head. Ventral, 2.2. 



Three blackish stripes extending backward from eye toward border 

 of opercle ; the median one broadened and rounded posteriorly ; body 

 with small, dark spots, those oh caudal peduncle largest. 



Described from the tj-pe, a specimen 30 mm. long, from Xaha, 

 Okinawa. 



Ti/pe.— Cat No. 62947, U.S.N.M. 



The species closely resembles A. Isostigma Jordan and Scale," 

 from which it may possibly prove to be indistinguishable. .1. nafce 

 has a larger eye and a smaller second anal spine, while in ^i. isostigma 

 the median stripe of head is broader, closely approaching a circular 

 spot in shape, and bordered by a prominent ring of dead white; also 

 each lateral scale of body has a large, black spot. 



Family POMACEXTRID.E. 



ABUDEFDUF RICHARDSONI, new species. 



Head, 3.8 in the length to base of caudal; depth, 2.5; depth caudal 

 peduncle, 7.2 ; diameter eye, 2.8 in head; snout, 4.2; width interorbital 

 space, 3 ; D. XIV-13 ; A. 11-13 ; scales in lateral series, 2G ; in trans- 

 verse series, counting upward and forward from origin of anal, 11. 



Mouth oblique ; maxillary extending to a vertical through anterior 

 edge of orbit. Teeth incisor-like in front of jaws, the edges rounded ; 

 growing more conical and smaller posteriori)''; not crowded, the 

 spaces between them quite evident. Gill-rakers on anterior arch, 

 7-|-lG, long and slender. Suborbital narrow, the edge smooth; edge 

 of preopercle naked and very finely denticulated. 



Snout naked between nostrils and lip; head and body otherwise 

 completeh' scaled ; bases of dorsal and anal scaled, the spinous dorsal 

 with three rows of attenuated scales extending upward between the 

 ■spines. Lateral line ending below origin of soft dorsal; a few pores 

 along median part of caudal peduncle. 



Median spines of dorsal somewhat longer than the others, 1.8 in 

 the head; longest (ninth) ray, 1.2 in head. Second anal spine, 2 in 

 head, the first not quite half as long; rays of about equal length 

 throughout, l.G in the head. Soft dorsal reaching base of caudal 

 when depressed ; neither dorsal nor anal filamentous. Caudal deeply 

 cleft, the lobes somewhat filamentous in a few examples. Pectorals, 

 3.G in the length ; ventrals. 4 ; occasionallv filamentous. 



Color of preserved specimens; ba.se of pectoral with a prominent 

 black spot on its upper third ; dorsal half of body dusky, the color 

 gaining in intensity posteriorly and forming a black stripe along 

 upper part of caudal peduncle and caudal fin; lower lobe of caudal 



"■ Fishes Samoa. Bull. Bureau Fisheries, XXV, p. 251. 



