FOSSILS FEOM PEKIM ISLAND. 409 



the Sivatherium and Giraffe, and considers it, so far as the ab- 

 stract above quoted indicates, to be distinct from both. The 

 circumstance that this cranium and the fossils here described 

 are from the same locality creates a strong presumption that 

 they may belong to the same genus or even to the same 

 species ; but I am iinable to say in how far the teeth agree, 

 as I have not had an opportunity for making the necessary 

 comparison. Mr. Bettington, as quoted in the abstract, 

 appears to consider that, in addition to horn buttresses behind 

 the orbits, there was a pair of recurved rear horns in his 

 fossil, at the side of the occiput, placed as in the buffalo. 

 This inference, if well founded, would be against the affinities 

 here attributed to Captain Fulljames's fossil, should it prove 

 to belong to the same species. Among the remains jnen- 

 tioned as having been found associated with this cranium by 

 Mr. Bettington are species of Mastodon, Rhinoceros, besides 

 several forms of Ruminants, Crocodiles, &c. 



APPENDIX TO MEMOIR ON PERIM ISLAND FOSSILS. 



I. — Description of a fragment of Fossil Bone from Perim Island, 

 Gulf of Cambat, in the collection of Mr. Henry Duck- 

 worth, Liverpool (Labels 12 and 47). From Dr. F.'s Note- 

 Book. 



This specimen consists of a mntilated portion of the right ramus of the 

 lower jaw, comprising the fang portions of one or more molar teeth ; 

 together with about two inches in length of the entire and sharp edge 

 of the diasteme. The internal alveolar wall is broken off, and polished 

 by rolling ; the crowns of the teeth are also entirely wanting. The 

 specimen is trimcated in front through the diasteme ; and behind, in a 

 line with what is inferred to be the second molar, the surface of the 

 bone has acquired a vitreous polish, and is covered here and there with 

 white undetermined incrustations. The fragment is chiefly remarkable 

 for the compressed character of the ramus, and for the great concave 

 curve of the lower margin in front, which is deflected downwards in a 

 bold curve intermediate between that of Dinotherium Indicum and 

 M. {Trilophodoii) angustidens. The compression of the ramus is too 

 great for an adult jaw of Dinothermm, and the downward deflection 

 greater than is met with in any species of Mastodon. The anterior end 

 of the fragment is curved slightly inwards, to meet the corresponding 

 opposite side; but no portion of the symphysis remains. Regarded from 

 the anterior end, the section shows a deep compressed elliptical hole, 

 considerably in advance of the mentary foramen, and which therefore 

 cannot be regarded as the dentary canal, but rather the alveolus of a 

 very large and solitary recurved incisor, as in Dinotherium giganteum, 

 or deflected, as in Mastodon angustidens. The mentary foramen is 

 situated posteriorly to the anterior fangs, and at about two-thirds of the 



