561 



The following, to No. 3368 inclusive, are detached teeth of the North African Wart-hog 

 (Phacochoerus jEliani) : 



Mus. Brit. 



3365. The upper canines, or tusks. 



The right one has had its apex broken away : the left measures 1 foot 8 inches in length, 

 following the outer curvature. 



3366. Six specimens of the right upper tusk. 



3367. Four specimens of the left upper tusk. 



3368. The last molar, right side, lower jaw. 



A slice has been removed transversely from the summit of the crown, and the cut surface 

 polished, to show the three different substances, 'dentine,' 'enamel,' and 'cement,' of which 

 this complex grinder is composed. It is the original specimen figured in the ' Philosophical 

 Transactions,' 1799, tab. xix. fig. 2 & 3, and was removed from the skull, No. 3355. 



Hunterian. 



The following, to No. 3379 inclusive, are detached teeth of the South African Wart-hog 



(Phacochoerus Pallasii) : 



f 



3369. An upper canine, apparently of a female. Mus. Brit. 



3370. The upper canines, or tusks. 



They show, in comparison with those of the Phacochoerus JEliani, the characteristic nar- 

 rower impression upon their inferior surface. 



Hunterian. 



3371. The fourth premolars, p 4, and the remnant of the second true molar, m 2, 

 from the right side of the upper jaw. 



The worn crowns of the premolars present a crescentic island of dentine surrounded by 

 enamel. 



Hunterian. 



3372. The fourth upper premolars, p 4. Mus. Brit. 



3373. The first upper molars, m 1, of the same animal. 



Their crowns are worn down nearly to the base, and the fangs, four in number, have been 

 greatly reduced by the absorbent process. 



Mus. Brit. 



4c 



