140 U-S. NATIONAL MUSEUM BULLETDST 2 02 Vol. 3 



9a. Skin smooth, at most with only microscopic size spicules; caudal 

 peduncle absent; none of soft rays of dorsal or anal fins 

 divided. (Genus Histiophryne Gill.) 

 10a. Pectoral rays 8; second and third dorsal spines not movable, 

 covered with thiclc skin. (Southern Australia.) 



H. bougainvilli (Cuvier and Valenciennes) 



10&. Pectoral rays 10 or 11 ; second and third dorsal spines movable. 



(Southern Australia.) _H. scortea McCulloch and Waite 



96. Skin everywhere covered with bristles; caudal peduncle distinct 



or nearly so; anal rays 8 to 10; pectoral 10 or 11. (Genus 



Echinophryne McCulloch and Waite.) 



11a. First dorsal spine stout, covered with prickles; body covered 



with upstanding bristles; none of soft dorsal or anal 



rays divided. (South Australia.) 



E. crassispina McCulloch and Waite 

 116. First dorsal spine slender, smooth, with simple tentacle; 

 last few soft dorsal rays and anal rays divided. (West- 

 ern Australia.) E. glauerti Whitley 



86. Soft dorsal rays 11 to 14. 



12a. Fleshy tip of first dorsal spine consists of distinct bifid or trifid 



tentacles, often with filaments, but usually without basal 



filaments; anal rays 6 or 7; last 2 or 3 rays of soft dorsal 



divided; all anal rays divided; all pectoral rays simple; 



caudal peduncle distinct. (Genus Phrynelox Whitley.) 



13a. Bifid tentacles at tip of first dorsal spine; dorsal soft rays 



usually 11 or 12, rarely 13; pectoral 10 or 11; bony part 



of first dorsal spine almost twice length of second dorsal 



spine. (Subgenus Phrynelox.) 



14a. Body striped with brown markings more or less resembling 



a zebra. (Western tropical Pacific and Indian oceans.) 



P. striatus (Shaw) 



146. Body somewhat mottled or plain blackish, with ocellate 



spots. (Tropical Western Pacific and Indian oceans.) 



P. melas Bleeker 

 136. Trifid tentacles at tip of first dorsal spine (rarely is one of 

 these tentacles missing from injury); dorsal soft rays 

 usually 12. (Subgenus Triantennatus Schultz.) 

 15a. Pectoral rays 10, occasionally 9 or 11. 



16a. Body striped with dark brown markings on a pale back- 

 ground, more or less zebralike. 

 17a. About 4 to 6 dark stripes on soft dorsal fin, other widely 

 spaced ones on body; pectoral rays 9 or 10. 



(Hawaii.) P. cunninghami Fowler 



176. Dark stripes on fins and body very numerous and 

 closely packed; pectoral rays 10, occasionally 11. 



(Australia.) P. zebrinus Schultz 



166. Color black; fin rays notably black, not white-tipped, 

 except pectorals slightly pale. (Sydney, Australia.) 



P. atra Schultz 

 156. Pectoral rays 11, occasionally 10. 



18a. Color black or dark brown; pectoral rays white-tipped. 

 (Japan.) P. nox (Jordan) 



