J. >.'EiiitariiYs. 21 



Second Subfamily. 



MUKENID.E ENGYSCHIST^. 



The branchial openings in the pharynx are narrow slits. 



K. MUR^NINA. 



Peflural and vertical fins well developed 23. Mi/rocovger, -p.^'S. 



Pectorals none ; vertical fins well developed ; posterior nostril a narrow round 



foramen 24. iV/w^wa, p. 93. 



Fins none, except a rudimentary one round the end of the tail. 



25. Gymnomurcena, p. 133. 

 Pectorals none ; vertical fins well developed ; posterior nostril a long slit. 



26. Enchelycore, p. 135. 



First Subfamily. 



MUR/ENID.E PLATYSCHIST.E. 



The branchial openings in the pharynx are wide slits. 



First Group. NEMICHTHYINA. 

 1. NEMICHTHYS. 



Nemichthj-s, RkharcU. Voy. Samamnf/, Fish. p. 2-5. 



LeptorhjTicus, Loioe, Ann. ^- Mag. Nat. Hist. x. 1852, p. 54 ; Mem. 



Ac. St. Potersb. Sav. etrang. vii. 18-54, p. 171. 

 Belonopsis, Brandt, ibid. p. 174. 



Exceedingly elongate, band-shaped; tail tapering into a point. 

 Vent approximate to the pectorals, but the abdominal cavity ex- 

 tending far behind the vent. Jaws produced into a long, slender 

 bill, the upper part being formed by the vomer and intermaxilla- 

 ries. The inner surface of the bill covered with small tooth-like 

 asperities. Eye large. The nostrils of each side are close together, 

 in a hollow before the eye. Gill-openings wide, nearly conHuent. 

 Pectoral and vertical fins well developed. 



Atlantic. 



1. Nemichthys scolopacea. 



Nemichthys scolopacea, Richards. I. c. pi. 10. figs. 1-3 (young, not 



good). 

 Leptorhyncus leuchtenbergii, Loive, U. cc. 

 Belonopsis louchteubergii, Brandt, I. c. c. fig. 



Dorsal fin commencing immediately behind the occiput, anal 

 behind the vent. 

 Atlantic. 



a. Young. South Atlantic. Presented by Sir J. Richardson. — 



Type of the species. 

 h. Thirty-three inches long. Madeira. Purchased. — Head three 



inches, greatest depth of the head half an inch. 



