320 
DE. CLELAND ON THE EELATIONS 
Fig. 12. The vomer and lateral masses of the ethmoid of the Lamb, seen from below; — 
a, the inferior margin of the vomer, rough posteriorly for articulation with 
the maxillaries, and smooth anteriorly where it comes in contact with the 
intermaxillaries ; 5, 5, the grooves which complete the nasal foramina of the 
palate-bones. The spaces between these grooves and the margins of the 
vomer represent the ethmovomerine laminae ; and on the outer aspects of the 
grooves are the small orbital surfaces of the ethmoid. 
Fig. 13. Intermaxillaries of the Sheep: — «, a, incisive foramina; 5, 5, portions of the 
maxillaries ; c, space for the anterior extremity of the septal cartilage. 
Fig. 14. Intermaxillaries of the Alpaca. Letters as in fig. 13. 
Fig. 15. Intermaxillaries of the Giraffe. Letters as in fig. 13. 
Fig. 16. Part of the skull of the Horse : — «, vomer (the anterior half removed) ; 5, part 
of the palate-bone; c, part of the pterygoid; ethmovomerine lamina; 
e, nasal foramen of the palate-bone. 
Fig. 17. Section of the fore part of the skull of the Horse: — a, forepart of the vomer, 
resting on the maxillaries, and articulating in front with the intermaxillaries ; 
5, incisive foramen ; c, cul-de-sac for the anterior extremity of the septal 
cartilage. 
Fig. 18. Vomer, &c. from the skull of the sucking Pig: — < 2 , presphenoid; h, portion of 
the vomer which rests on the intermaxillaries ; c, ethmovomerine lamina and 
part of the ethmoid ; (Z, various distinct ossifications belonging to the ethmoid. 
Fig. 19. Vomer, &c. of the young Elephant : — a, 5, surfaces by which the intermaxillaiy 
and maxillary come in contact with their fellows of the opposite side; 
c, incisive foramen ; (Z, e, processes of the vomer, by which its inferior and 
superior margins are made continuous with the corresponding margins of the 
intermaxillaries. 
Fig. 20. Anterior nares of the Tapir: — «, vomer; maxillary; c, palate- plate of max- 
illary ; d, intermaxillary ; e, foramen corresponding to both incisive foramina 
and the space for the point of the septal cartilage in the Camel &c. ; jf, lateral 
mass of the ethmoid ; g, expanded superior margin of the central plate of the 
ethmoid ; h, united nasals. 
Fig. 21. Part of the skull of Coelogenys: — a, 5, mesial borders of the maxillary and inter- 
maxillary; c, vomer. 
Fig. 22. View of the articulations of the vomer in the Eabbit. Above are the vomer 
and ethmoid forming one bone. Beneath are the bones of the upper jaw of 
the left side, and a portion of the intermaxillary of the right side adlierent - 
«, anterior extremity of the vomer grooved for the cartilaginous septum of the 
nose ; 5, the part of the vomer which articulates with c, the extremity of the 
expanded mesial processes of the intermaxillaries forming tuihinations in 
connexion with Jacobson’s organ. 
Fig. 23. Part of the skull of the Kangaroo: — a, presphenoid; h, frontal; c, ethmovome- 
