52 
ERIK A:SON STENSIO 
fishes. The skull without or with very delicate ornament. The frontals long; the supra- 
orbitals probably narrow. The cheek plates not joined by sutures but fairly free from 
one another, partly even separated by wide interspaces; the jugal articulating with the 
middle post-orbital plate, but not reaching- the dorsal one. The parasphenoid broad. 
The pterygoid with a broad posterior limb and a long anterior one. The coronoid 
triangular. The ossification in the ceratohyal long; the opercular very large. The 
dentition consisting of rather large conically pointed teeth on the margins of the jaws; 
otherwise the jaws, the parasphenoid and the membrane bones on the copula with 
small bluntly conical ones; the gill-arches with teeth of the same shape as on the 
Text fig. 19. Wimania sinuosa n. sp. 
The neurocranium from the left side with the cheek bones removed. The cartilaginous parts (dotted) of the orbito-temporal region 
restored chiefly after Diclyoiiosteus. The bones from P. 25 j. 3 I,. 
Bsph, basisphenoid; Fr. dsph, frbnto-dermosphenotic; Pa. it, parieto-intertemporal: Pethm, preethmoid; Pro.o. prootico-opisthotic 
Psph, parasphenoid; .Stamp, ext, supratemporo-extrascapular; at, forward pointing lamella from the basisphenoid-corpus; c, posterior 
process from the prootico-opisthotic; e, basipterygoid process; f, anterior end of the prootico-opisthotic; f u dorsal process from 
the prootico-opisthotic; fen, fenestration in the interorbital wall, probably corresponding to the entrance of the supposed mj'odome; 
h. ventral process from the supratemporo-extrascapular; v, ventral process from the basisphenoid-corpus; II, for. opticum: 
III, for. n. oculomotorii; IV, for. n. troclilearis; V ± e outer opening of the canal for n. ophthalmicus profundus; V i3 , sijius trans¬ 
mitting ramus maxillaris trigemini, n. mandibularis trigemini, n. buccalis lateralis and n. ophthalmicus superficialis; n. ophthalmicus 
lateralis had its exit a little above, these nerves through the some sinus; VII, for. facialis; 1X7 supposed position of the inner 
opening of the canal for n. glossopharyngeus. 
margins of the jaws but much smaller and finer. The sensory canals well developed. 
The scales oval with ornament, consisting of a rather large number of fine and 
rather short striae, generally running horizontally. 
In many respects Wimania resembles the Carboniferous and Permian Coelacanthid 
type more than the Jurassic und Cretaceous ones, at least if we are to judge from 
the type specimen. The most striking common characters in this respect are the 
shape of the parasphenoid and the pterygoid, the relation between the latter bone 
and the metapterygoid, the general arrangements of the cheek plates and the con¬ 
siderable size of the opercular. On the other hand the relation between Wimania 
and the Triassic forms previously described is still very uncertain, as these are 
on the whole exceedingly incompletely known as far as the osteology of the skull 
is concerned. Of the Spitzbergen genera described below it is really only Sassenia 
that reminds us of Wimania-, as has already been pointed out, the others are more 
specialized forms. 
