170 PROCEEDINGS OF THE GECLOGICAL SOCIETY. [Dee. 22, 
complete. In front it is flat; but from the middle of the snout back- 
wards the inner border of the maxillaries and of the palatine bones 
form alow median ridge, which makes the palate in this part con- 
vex transversely. 
The premaxillary sutures form an acute angle open behind, as 
they do in Steneosaurus rostro-minor. I cannot speak with certainty 
of the suture between the maxillary palatine plates and the pala- 
tine bones; it seems to be a straight transverse line. 
The anterior palatine foramen is small; it is situated opposite to 
the interspace between the second and third teeth. The front end of 
the posterior palatine foramen, angular and narrow, is seen oppo- 
site to the penultimate tooth. 
It will be recollected that in my last paper I showed that the 
lower jaw and premaxilla of this Kimmeridge crocodilian so closely 
resembled those of Cuvier’s second Honfleur Gayial “téte & museau 
plus court” (Steneosaurus rostro-minor, Geoffroy St.-Hilaire) as to 
afford a very strong presumption of their specific identity; and I 
identified it by means of its teeth with Dakosaurus mawimus, Quen- 
stedt. The more rigid comparison which the additional material 
since acquired has made possible, confirms the opinion thus ex- 
pressed, that this Kimmeridge crocodilian is really a Steneosaur ; 
but it also proves it to be a distinct species. Its snout is stouter 
than that of the two Honfleur Gavials; the structure of its distal 
half differs from that which obtains in these and in the Oxford 
(Shotover) Steneosaur. The number and distribution of the teeth 
differ also considerably from those in the “téte 4 museau plus 
court,” which has 22 teeth in each half of the lower jaw, of which 
7 are postsymphysial; while the lower jaw of the Kimmeridge 
Steneosaur has not more than 15 teeth on each side, and of these at 
most 4 are behind the symphysis. 
For this new Steneosaur I propose the specific name Manselii, in 
honour of its discoverer :—Stencosaurus Manselii. 
Dec. 1869. 
Postscript.—I cannot quite shake off the suspicion that the slender 
nasals may be present in the Geneva snout, and perhaps also in 
the Oxford (Shotover) Steneosaur’s skull. 
Cuvier, in describing the nostril of the Honfleur gavial “ téte a 
museau plus court,” says, ‘Le bord postérieur et supérieur donne 
deux petites proéminences qui ne sont pas au Gavial. Les sutures 
ne sont pas assez marquées pour que je puisse déterminer si ces 
proéminences appartiennent aux maxillaires ou aux intermaxil- 
laires” *, 
Dr. Rolleston, also, writing to me about the Oxford (Shotover) skull, 
Says, ‘Some restitutive plastering has taken place at the nasal open- 
ing; but into it there projects, from behind forwards, in the middle 
line, an azygos process. What this is the sutures are not, I think, 
present to show; but you will judge.” 
* Ossemens Fossiles, tome vy. 2° partie, p. 153. 
