FAMILY POMACENTRIDAE — WOODS AND SCHULTZ 55 



and 147129 from the Marshall Islands and Borneo, and MCZ 33409 

 from Amboina. 



Schultz examined the type of A. nigripes in the British Museum and 

 found the pectoral fin to have 19 rays, which number is 2 more than 

 for western Pacific specimens of perideraion. Thus A. nigripes may 

 be a valid species close to A. perideraion. The type has faded so that 

 now it is light brown with an indistinct pale streak along base of 

 dorsal fin, a broad pale band along midside, and probably one below, 

 from lower edge of pectoral base to ventral edge of caudal peduncle. 

 A series of specimens with distinct color patterns is needed to work out 

 the relationship of these two forms. 



AMPHIPRION CHRYSOGASTER Cuvier and Valenciennes 



Plate 81, C 



Amphiprion chrysogaster Cuviek and Valenciennes, Histoire naturelle des 

 poissons, vol. 5, p. 400, 1830 (type locality. He de France). — Lesson, Voyage 

 ... la Coquille . . ., zoologie, vol. 2, pt. 1, p. 191, pi. 28, fig. 3, 1830 (He de 

 France).— Schultz, Proc. U. S. Nat. Mus., vol. 103, p. 193, pi. 9,E, 1953. 



Amphiprion percula (non Lacepfede), Okada and Ikeda, Biogeographica, Trans. 

 Biogeogr. Soc. Japan, vol. 3, No. 2, p. 200, pi. 6, fig. 1, 1939 (Riu Kiu Islands). 



Amphiprion trifasciatus Cuvier and Valenciennes, Histoire naturelle des 

 poissons, vol. 5, p. 595, 1830 (type locality, Moluccas). 



Prochilus bifasciatus (non Bloch) Bleeker, Atlas ichthyologique . . ., vol. 9, 

 pi. 400, fig. 6, 1878. 



SPECIMENS STUDIED 



Rongelap Atoll: 1 station, 1 specimen, 21.7 mm. in standard length. 



Description. — Dorsal rays X,16; anal 11,14; pectorals ii,18; scale 

 rows from upper edge of gill opening to base of middle caudal rays 

 49, with 5 rows between lateral fine and base of dorsal, 19 between 

 lateral line and origin of anal. 



Depth of body 2.0; length of head 3.0; both in standard length. 

 Snout 4.24; eye 2.25; preorbitai width 12.0; length of upper jaw 2.76; 

 postorbital part of head 2.76; interorbital width 3.3; depth of caudal 

 peduncle 2.05; length of pectoral fin 1.0; length of pelvics 0.76, length 

 of third dorsal spine 1.8; length of middle caudal rays 0.9; all in length 

 of head (tip of snout to tip of longest opercular spine). Depth of 

 caudal peduncle in its length 1.6; angle of snout profile with length- 

 wise axis of body 45 degrees; snout profile convex. 



Body oblong, suborbital entii-e, preopercle serrate on lower half of 

 posterior margin, opercle with two diverging gi'oups of spines, subo- 

 percle and posterior part of interopercle with spines; spiny dorsal fin 

 with 9th spine shortest, so fim is deeply notched though spiny dorsal 

 is connected with soft dorsal; soft dorsal, anal, and caudal rounded; 

 pelvics long, one reaching to and one past origin of anal (perhaps a 

 juvenile characteristic) . 



422142—60 5 



