20. HEMITKIPTERUS. 143 



19. TRICHOPLEURA. 



Sthenopus *, Richards. Voy. Smnar. Fishes, p. 10. 

 Trichopleiira, Kaup, Wiegm, Arch. 1858, p. 338. 



Head and body compressed, naked ; the fonner without spines or 

 protuberances. The three anterior dorsal spines forming a separate 

 division of the fin ; the remainder of the fin continuous, with ten 

 spines ; pectoral appendages none ; all the rays of the fins simple. 

 Teeth in the jaws and on the vomer, none on the palatine bones. 

 Six branchiostegals ; no cleft behind the fourth giU. 



Sea of China. 



1. Trichopleura mollis. 



Sthenopus mollis, Richards. Voy, Samar. Fishes, p. 10, pi. 2. f. 6, 7. 

 B. 6. D. 3 I 1 1 1. A. 10. V. 1/2. 



Integuments soft, lax, with scattered minute filaments and prickles. 

 The first three dorsal spines forming a separate division of the fin ; 

 the foiu'th spine intermediate, and at some distance from the pre- 

 ceding and the following spines. Head without external ridges and 

 protuberances. 



Sea of China. 



a. Adult. China. Presented by Sir .J. Eichardson. — Type of the 

 species. 



20. HEMITRIPTERUS. 



Hemitripterus, Cuv. ^ Vol. iv. p. 268. 



Head not compressed, naked, with many cutaneous appendages ; 

 armed. Scales none. Two dorsals, the first rather more developed 

 than the second ; ventrals enveloped in thick skin like the pectorals ; 

 no pectoral appendage. Villiform teeth in both the jaws, on the 

 vomer, the palatine and pterygoid bones. Six branchiostegals. Air- 

 bladder none ; pyloric appendages in moderate niunber. 



Atlantic shores of Northern America. 



1. Hemitripterus americanus. 



Cottus acadianus, Penn. Arct. Zool. iii. p. 371. 



tripterygius, £1. Schn. p. 63. 



hispidus, Bl. Schn. p. 63. pi. 13 (bad). 



Scorpaena flava, Mitch. Trans. Lit. 8f Philos. Soc. New York, i. p. 382. 



pi. 2. f. 8. 



purpiirea et rufa, Mitch. Amer. Month. Mag. ii. p. 245. 



Hemitripterus americanus, Cuv. 8f Val. iv. p. 268. pi. 84 ; Griff. Anim. 



Kingd. x. p. 141. pi. 53. {.3a; Store?; Rep. Mass. p. 23; JDekay, 



New York Fauna, Fishes, p. 56. pi. 6. f. 16 ; Cuv. R^gne Anim. III. 



Poiss. pi. 22. f. 1. //, oiW^a^vn^, ^rycV 



D. 15 I 12. A. 14. Caec. pylor. 6. Vert. i^. 

 The anterior portion of the first dorsal rather remote from the 

 * Preoccupied. 



