243 
ventral photon! ores 10 from isthmus to pectoral, 36 from pectoral to ventral, 
14 from ventral to anal. 
D. 23, fin height 2 l/z in total head; A. 26 or 27, fin height 2 l/4; 
caudal 1 3/5, well forked; least depth of caudal peduncle 7; pectoral 2 2/5, 
■s 9 
; ventral 1, rays 7* 
Length 290 mm. (Norman.) 
North Atlantic. 
Genus 0P0ST0KIAS Gunther 
Opostomias GUNTHER, Rep. Voy. Challenger, vol.22, 1887, p.208. Type Opostomias 
tr 
micripnus GUNTHER, monotypic 
Moderately elongate. Mouth cleft straight, jaws strong. Teeth tapering to 
sharp edges; in each jaw 4 fixed teeth on each side, first lower and second 
t- 
upper long’ fangs, lower pair received into pits in the upper jaw, perforating 
t I 
premaxillaries; single inner depressible tooth in each ja.w behind anterior fangj| 
maxillary teeth minute, not piercing skin; pair of small teeth on vomer; pala¬ 
tines and basibranchials toothless; teeth on gill arches small. 
Dorsal rays 21. Anal rays 23. Pectoral rays 1+3, isolated ray produced. 
Ventral rays 7, fin little premedian. 
Opostomias micripnus (Glint her) 
Echiostoma micripnus GUNTHER, Ann. r ag. Rat. Hist., series 5, r ol.2, August 1878,1 
p.130. Off south coast of Australia, in 2150 fathoms. - MACLEAY, Proc. | 
Soc. New South Wales, vol.6, 1881, p.227 (copied). - GOODE and BEAN, Oceanic 
Ichth., 1895, p.110, pi,35, fig.132 (copied). 
Opostomias micripnus GUNTHER, Rep. oy. Challenger, vol.22, 18-37, p. 208, pi •no. 
