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



Eniwetok Atoll: 1 station, 1 specimen, 66 mm. 

 Kwajalein Atoll: 1 station, 1 specimen, 54 mm. 

 Guam: 3 lots, 5 specimens, 26 to 57 mm. 

 Saipan: 1 lot, 1 specimen, 44 mm. 



Description. — Certain counts are recorded in table 99. 



Head 2.6 to 3.3, greatest depth 4.1 to 4.8, longest pectoral ray, 5.2 

 to 5.3, snout tip to anus 1.9; snout to dorsal origin 2.7 to 3.4; all in 

 standard length. Snout 3.2 to 3.5; eye 3.4 to 5.1; interorbital space 

 1.9 to 2.0; longest pectoral ray 1.7 to 1.9; least depth of body 2.0 to 

 2.3; all in length of head. Eye in fleshy interorbital space 0.9 to 1.6. 

 Dorsal profile of head forming an angle of 40 to 45 degrees with ventral 

 contour of head; pectoral fin reaches to opposite the fifteenth and 

 seventeenth lateral line pores; outer soft pelvic ray longest; distal 

 margin of caudal slightly rounded. 



Color in alcohol. — At lengths of from 40 to 74 mm. background 

 coloration is whitish; a black streak begins on the mouth and extends 

 through eye, across opercular flap, a Httle above midside of body to 

 rear margin of caudal fin, broadening posteriorly; a narrow black 

 streak or line usually occurs on base of anal fin and thence along ventral 

 edge of the caudal peduncle, curving around ventral part of caudal 

 fin to meet the broadly black center of caudal fin; a black spot occurs 

 between dorsal spines I to III or IV; a dark streak may begin ou dorsal 

 surface of snout and continue along base of dorsal fin; axil of pectoral 

 white; a dusky spot or short blackish bar may occur below pectoral 

 fin base. 



At lengths of from 24 to 37 mm. background coloration is blackish 

 or dark brownish, underside of head and breast light brown or whitish; 

 distal third of dorsal and anal fms white ; dorsal and ventral edges of 

 caudal fin v^hite; the blackish lateral band is slightly visible on head; 

 the light brown band above black band on side begins to appear at 

 these sizes. A 24-mm. specimen is light brownish, with caudal fin 

 blackish centrally. 



Color when alive. — The whitish areas are bright blue and the dark 

 areas blackish; pectoral yellowish. 



LABROIDES BICOLOR Fowler and Bean 



Plate 98,A,B 

 Labroides hicolor Fowler and Bean, U. S. Nat. Mus. Bull. 100, vol. 7, p. 224, 1928 

 (type locality, Port Maricaban, Philippines). 



SPECIMENS STUDIED 



Bikini Atoll: 5 stations, 6 specimens, 15.5 to 91 mm. in standard length. 



Rongerik Atoll: 1 station, 1 specimen, 86 mm. 



Rongelap Atoll: 1 station, 1 specimen, 24 mm. 



An additional specimen, 29 mm. USNM 108514, from the Hawaiian Islands, 

 taken by Otto Degener, July 1937, at Mokuleia, Waialua, is the easternmost 

 record so far for this rare species. 



