447 



2470. A tooth of the Cachalot (Physeter macrocephalus). Purchased. 



2471. Two teeth of the Cachalot (Physeter macrocephalus). 



Presented by Okey Belfour, Esq. 



2472. A tooth of a Cachalot, ascribed in the former Catalogue (4to, 1831) to the 

 High-finned species (Physeter Tursio, Gmel.). It appears to be a worn spe- 

 cimen of tooth from the lower jaw of the Physeter macrocephalus. 



Mm. Brit. 



2473. A tray of similar teeth, ascribed to the Physeter Tursio. Muz. Brit. 



2474. A tooth of a Cachalot, ascribed in the former Catalogue (4to, 1831) to the 

 Physeter catodon, Gmel. It appears to be a young or terminal tooth of the 

 Physeter macrocephalus. Mm. Brit. 



2475. A tray containing six similar teeth, ascribed to the Physeter catodon, Gmel. 



Hunterian. 



2476. A tooth from the upper jaw of a female Cachalot (Physeter macrocephalus}. 



It is curved in the form of a semicircle, obtusely pointed at both ends, one of which is 

 polished on the convex side, probably by abrasion against the larger teeth of the lower 

 jaw : the root of the present tooth was buried in the thick callous gum covering the alveolar 



borders of the upper jaw. 



Presented by Fred. D. Bennett, Esq., F.L.S. 



2477. A tooth, longitudinally bisected, from the upper jaw of a female Cachalot 

 (Physeter macrocephalus). 



" In two mature Cachalots which Mr. Bennett examined, he found eight of these teeth on 

 each side of the upper jaw." Odontography, p. 354. 



Presented by Fred. D. Bennett, Esq., F.L.X. 



2478. Two stalactitic masses of osteodentine, found loose in the sockets of the lower 

 jaw of the Cachalot (Physeter macrocephalus). They are formed by irregular 

 ossifications of the remnants of the dentinal pulp after the formation of the 

 ordinary body of the tooth. Presented by George Bennett, Esq., F.L.S. 



