2314 
Genus Eugnathos aurus Regan 
Eugnathosaurus REGAN, Rep. Sci. Res, Voy. Scotia, vol. 4, Zool., 
pt. 15, May 23, 1913, p, 216. Type Eugnathosaurus vorax REGAN, 
monotypic. 
Skull very elongate, strongly compressed, upper surface somewhat 
convex, with fairly prominent median ridge. Snout and lower jaw much 
extended, each ending in fleshy appendage. Lower jaw projects beyond 
upper, 3 uspensorium directed obliquely forward. Teeth pointed, uniserial; 
premaxillary teeth minute; nandibulary teeth sub-conical, erect or somewhat 
retrorse, strongest in middle of length of jaw, more spaced posteriorly; 
palatine teeth strong, compressed, curved somewhat forward. 
Eugnat ho sauru3 v orax Regan 
Eugnathosaurus vorax REGAN, Rep. Sci. Res. Voy. Scotia, vol. 4, 
Zool., pt. 15, May 23, 1913, p. 316. S. 71°22 f ff. 16°34*, 1410 
fathoms, off Coats Land. 
Snout 1 2/3 in head from snout tip; orbit 9, 5 1/3 in snout; mouth 
cleft reaching orbit. (Regan.) 
Antartic Ocean. Only known from a skull 150 mm. long and dentaries 
of a second specimen from same locality. The antrorse palatine teeth 
especially peculiar. 
