ANTHBACOTITERIIDjE. 223 



men agrees precisely with the occiput of the last ; and 

 differs from that of H. velaunus figured by Filhol, op. cit. 

 pi. xx. fig. 96. Hastings Collection. Purchased, 1855. 



M. 1944. Cast of tho palate of a young individual, with tho milk- 

 dentition. The original is from the Lower Miocene of 

 Ronzon ; and is apparently the one figured by Filhol, op. 

 cit. pi. xxvi. fig. 131, under the name of Ancodus lepto- 

 rhynchus. Presented by Dr. Kowalevsky. 



M. 2180. Part of the palate of a young specimen, showing the 

 last three milk-molars and m. 1 ; from the Lower Miocene 

 of Ronzon. This specimen is- precisely similar to No. 

 M. 194 L Purchased, 1885. 



M. 1942. Fragment of the left maxilla, containing the three true 

 molars ; from the Lower Miocene of Ronzon. The length 

 of the space occupied by the three cheek-teeth is precisely 

 the same as in the Hempstead specimen No. 29758. 



Presented by Dr. Kowalevsky. 



29761. The third left upper true molar ; from the Hempstead beds 



(Fig.} of the Isle of Wight. This specimen is the type of the 



species, and is figured by Owen, op. cit. pi. vii. figs. 1 & 5. 



Hastings Collection. Purchased, 1855. 



29758. Fragment of the left maxilla, containing the four last cheek- 

 teeth ; from the Hempstead beds of the Isle of Wight. 

 The length of the space occupied by the three true molars 

 is 0,0715 ; the corresponding length in the Ronzon cranium 

 No. M. 1941 being 0,071 \ The length of m. 3 is 0,035 

 and 0,030 in the two specimens ; and that of pm. 4 0,014 

 in both. It is to a great extent on the evidence of this 

 specimen that the so-called H. leptorhynchus is identified 

 with the present species. 



Hastings Collection. Purchased, 1855. 



M. 2183. The third right upper true molar ; from the Hempstead 

 beds of the Isle of Wight. Purchased, 1885. 



29650. A broken right upper true molar ; from the Lower Miocene 

 of Ronzon. Croizet Collection. Purchased, 1848. 



M. 1902. Fragment of the left maxilla containing the last pre- 

 (Fiy.) molar, the first and second true molars, and the alveolus 



1 Filhol, in the Ann. Sci. G6ol. vol. xii. art. 3, p. 152, gives this dimension as 

 0,075. 



