FISHES OF THE PHOENIX AND SAMOAN ISI^ANDS 175 



Family SYNANCEJIDAE 



Genus SYNANCEJA Bloch 



fif(/;iff«cey« Bloch, in Schneider, Systema ichthyologiae . . ., p. 194, 1801. (Type, 

 Scorpacna horrida Linnaeus.) 



SYNANCEJA VERRUCOSA Bloch 



Synanceja verrucosa Bloch, in Schneider, Systema ichthyologiae . . ., 

 p. 195, 1801. 



115734, Tutuila Island, reef Alofau, June 3, 1939, 1 specimen. 

 52320, Apia, Samoa, Jordan and Kellogg, 3 specimens. 



Family CARACANTHIDAE 



KEY TO THE CARACANTHIDS FROM THE PHOENIX AND SAMOAN ISLANDS 



la. Preorbital with two short spines projecting forward from base of posteriorly 

 projecting main spine ; membrane of spinous dorsal fin connecting with 

 first soft ray for over half the distance out from its base; eye about 4% 

 in head; dorsal rays VII, 13; anal II, 12; pectoral 6 + 7 or 8 (swollen) 

 equals 13 or 14 rays ; dorsal half of body brownish, ventral half pale. 



Caracanthus iinipinna (Gray) 



1&. Preorbital with one short spine projecting forward from base of posteriorly 

 projecting main spine ; membrane between spinous and soft dorsals deeply 

 notched, almost to base of first soft ray ; eye about 3^2 in head ; dorsal 

 rays VIII, 12; anal II, 11 or 12; pectoral 5 or 6 + 8 or 9 (swollen) 

 rays; color grayish, upper sides, back and pectorals spotted with brown 

 or blackish Caracanthus maculatus (Gray) 



Genus CARACANTHUS Kriiyer 



Caracanthus Kroyer, Natnrh. Tidsskr., vol. 1, p. 267, 1845. [Type, C. ti/piciis 

 Kroyer (= Micropus maculatus Gray).] Replaces Micropus Gray, preoc- 

 cupied. 



CARACANTHUS UNIPINNA (Gray) 



Micropus unipinna Gray, Zool. Misc., 1831, p. 20. 



1160S2, Rose Island, reef, June 11-14, 1939, 66 specimens. 

 116081, Rose Island, lagoon, June 12 to 20, 1939, 2 specimens. 

 52253, Apia, Samoa, Jordan and Kellogg, 1 specimen. 



CARACANTHUS MACULATUS (Gray) 



Micropus maculatus Gray, Zool. Misc., 1831, p. 20. 



116079, Rose Island, reef June 11-14, 1939, 16 specimens. 



116080, Enderbury Island, reef. May 15-19, 1939, 8 specimens. 



Order CHROMIDES 

 Family POMACENTRIDAE 



KEY TO THE GENERA AND SPECIES OF POMACENTRIDS FROM THE PHOENIX AND 

 SAMOAN ISLANDS REPRESENTED BY SPECIMENS IN THE NATIONAL MUSEUM 



la. Scales 50 or more ; opercle, interopercle, and sometimes subopercle with 

 long spines radiating from the three bones; spines on interopercle and 

 subopercle many times stronger than those on preopercle and of about 



