168 



BULLETIN 180, UNITED STATES NATIONAL MUSEUM 



Order CATAPHRACTI 

 Family SCORPAENIDAE 



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

 SAMOAN ISLANDS, REPRESENTED BY SPECIMENS IN THE NATIONAL MUSEUM 

 (fig. 14) 



la. Dorsal spines greatly elongated, flexible, and much longer than head. 

 2a. Upper pectoral rays simple, greatly elongate, at least two times head. 

 3a. [Color in alcohol.] Caudal peduncle with a brownish longitudinal band 

 along its midaxis ; body with seven blackish or brownish bars, much 

 wider than pale interspace, these black bars white bordered ante- 

 riorly ; a long simple tentacle over each eye ; membranes of pelvics 

 blackish, rays white ; upper pectoral rays white, elongate and thread- 

 like, extending to or a little past the tip of the caudal fin ; dorsal 

 rays XII, 11 ; anal III, 6 or 7 ; pectoral 15 or 16 ; scales about 54 

 to 58 ; gill rakers about 4+1+10 Pterois radiata Cuvier 



^V- 



H\j-—r----Y-\ 



^? POR 



"--COR 

 ^^>SOR 



Vv'--f ]---'-- -cos 



V Vv.^__...\ POP 



V 



Figure 14. — Diagram of the upper part of the head of a scorpaenid, indicating tlie names 

 given the various cranial spines referred to in the key to this group: COR, coronal ridge; 

 COS, coronal spine; HU, humeral spine; NJ, nasal spine; NU, nuchal spine; OP, oper- 

 cular spines; PAR, parietal spines; POC, preocular spine; POP, preopercular spines; 

 POR, preorbital spines; PTER, pterotic spine; PTF, postfrontal spines; PTOC, posto- 

 cular spine; PTOR, postorbital spines; PTT, posttemporal spines; SOR, suborbital spines 

 on the suborbital bones; SPH, sphenotic spines; SPOC, supraocular spine; TYM, tym- 

 panic spine. 



