CHALICOTIIEEIUM SIVALENSE. 223 



Saw no cast, nor the original of Kaiip's canine, fig. 4 of Plate VII. 

 of the Darmstadt fossil ; but there is a triangnlar cusped tooth with a 

 long fang which must have had a very oblique, i.e. slojDing insertion in 

 the jaw, which may be a canine of Chalicotlierium belonging probably to 

 left side of upper jaw, or to right side lower. It is much larger than our 

 lower ' canine,' more triangular in section, with an edge behind, and 

 rather bhint in front ; apparently unfigured. This supposed canine is 

 larger than the anterior premolar ; in our Sewalik (Baker's) head, the 

 lower canine and anterior premolar are nearly of a size. 



Memo. — Kaup, in conversation, tells me the supposed canine proved 

 to be an incisor of Rhinoceros Goldfussi. 



Chalicotherium. — Munich, June 15, 1861. — Most interesting of all 

 the Pikermi collection are a set of specimens of a very large species of 

 the same genus as our Sewalik Chalicotherium. This is the Nestorithe- 

 rium, Kaup (Beitrage, viertes Heft. 1859), which is figured and described 

 by Wagner (1857) under the name oi Rhinoceros pachygnathus. 



The principal specimen, fig. 15, Plate VII., execrably drawn, consists 

 of the greater part of a cranium from the sinciput on to the middle 

 of the diasteme, and the greater part of the nasals ; but the whole of 

 the sphenoidal and occipital portion wanting. The entire chaffron, with 

 greater part of the nasals, is present, but so criished down upon the 

 maxilla of the left side, containing the molars, that not a trace even 

 of an orbit can be detected. It looks as if the specimen never had had 

 an orbit ! Frontal portion behind the last molars broad and concave, 

 lougitiidinally and across, as in an Arab horse. Cerebral box (boite) 

 broad and without ridges over the temporals, something as in the genus 

 Equus. Nasals also seem as like those of a horse, but the lower extre- 

 mities broken. The animal very old (from the teeth), and no trace of 

 suture between nasals and frontal ; but a line of groove marking the 

 internasal and interfi-ontal suture. The maxillary with molars, on right 

 side, entirely wanting. No determinable trace of a sub-orbital foramen, 

 or of incisive bones. 



Dentition of left side. — All the molars are in situ, viz. three true 

 molars, three p.molars = 6 together, with 1 2in. in length of a sharp 

 diastemal ridge in front of p.m. 2. The animal was very old, all tlie 

 teeth being ground down to a flat surface, except the last ; and of the 

 last the isolated cone is ground down low ; but the posterior angular 

 fissure-like valley is intact. The teeth in general form, and anisodontine 

 character, exactly like the Sewalik specimen which has the orbit, right 

 side ; but there is this difference, that in the Pikermi specimen the 

 molars have a very strongly pronounced internal basal bourrelet show- 

 ing in the premolars, as in hippopotamus, and in the last molar, a very 

 bold, broad, sharp, bounding keel. 



The dimensions are as follows : — 



