TRIASSIC FISHES . FROM SPITZBERGEN 
XXIII 
Composition, stratigraphical distribution and relations of the 
vertebrate fauna. 
Altogether, including the fishes, no less than 60 species of vertebrates are now 
known from the Triassic of Spitzbergen. The species are as follows: 
Ichthyosauria 1 ) 2 ). . . 
Sauropterygia 3 ) . . . 
Parasucliia 4 ). 
Incertae- sedis 5 ) . . . 
Stereospondyli 6 ) . , . 
Reptiles. 
Phalarodon nordenskioldii (Hulke) 
Pessosaurus polaris (Hulke) 
Pessopteryx nisseri Wiman 
» arctica Wiman 
» pinguis Wiman 
» minor Wiman 
Ichthyosaurus sp. 
A vertebra of a Plesiosaurian. 
A Belodon- like vertebra. 
Omphalosaurus. 
Amphibia. 
Lyrocephalus euri Wiman 
Loncliorhynchus obergi Wiman 
* S P- 
Aphaneramma rostratum A. S. Woodward 
Platystega depressa Wiman 
Tertrema acuta Wiman 
Capitosaurus polaris Wiman 
Cyclotosaurus? spitzbergensis Wiman 
Peltostega erici Wiman 
A number of remains of indeterminable 
species. 
Pisces. 
j Family Cestracionidae. 
j Hybodus rapax n. sp. 
| » sasseniensis n. sp. 
I » microdus n. sp. 
*) Wiman, 1910; 1916 b; 1920, p. 12. 
2 ) Huene, 1916, Pachygnosaurus, p. 39, fig. 70; Broili, 1916, p. 494. 
3 ) Wiman, 1916, Bull. Geol. Inst. Upsala, Yol. XIII, 2, pp. 223—226. 
*) Wiman, 1918. 
5 ) Merriam, 1911; Merriam and Bryant, 1911; Wiman, 1916 a. 
6 ) Wiman, 1914a; 1916b; 1917; Moodie, 1915, Journ. of comp, neusrol. vol. 25, pp. 319—322; Huene, 1920. 
