319 



1. No vertical fins; head and trunk i 1 /, times 



in tail Sph. v^^lt^lr^s p 319. 



2. Vertical fins present but low. 



a. Distance of origin of dorsal from gillopenings 



2.3 4 times in head Sph. polyophthalmus p. 320. 



b. Distance of origin of dorsal from gillopenings 



7 times in head Sph. orientalis p. 321. 



II. Gillopenings more or less ventral, vertical, oblique 

 or longitudinal slits, their gillmembrane without 

 duplicature. 

 A. Vertical fins forming a rudiment only quite 



near end of tail Sph, klazingai p. 321. 



/?. Dorsal very low or well developed. 



1. Origin of dorsal above or shortly behind 

 gillopenings. 



a. Vomerine teeth much stouter than teeth 

 of jaws. 

 a.. Head 2.6 2.8 times in trunk. Eye 



above anterior third of cleft of mouth. Sph. mindora p. 322. 

 /3. Head 3 3 1 /, times in trunk. Eye 



above middle of cleft of mouth. . . Sph. macrodon p. 323. 

 b. All teeth equally small. 



en. Head 4.7 times in trunk 5 teeth uni- 



serial; cleft of mouth 3'/ 2 times in 



head Sph. bicolor p. 323. 



/3. Head 6 times in trunk ; vomerine 



teeth biserial 5 cleft of mouth 3 times 



in head * Sph. lumbricoides p. 324. 



y. Head 6.6 times in trunk; teeth uni- 



serial; cleft of mouth more than 5 



times in head Sph. misolensis p. 324. 



2. Origin of dorsal more than half length of 

 head behind gillopenings. 



a. Head 6.3 times in trunk ; teeth uniserial. Sph. kaupi p. 325. 



b. Head 5 times in trunk ; vomerine teeth 



biserial Sph. moluccensis p. 325. 



c. Head 4.1 times in trunk ; teeth uniserial. Sph. gjellerupi p. 326. 



i. Sphagebranchus vulturis ] ) n.sp. 



Height about 48; head 10.4 (measured from posterior end 

 of gillopenings), 3 times in trunk; head and trunk 1.5 times in 



i) Named after the Government Fisheries Investigation Ship "Gier" = vultur. 



