124 TTXGULATA. 



49680. The greater portion of the bones of the lower half of the left 

 hind limb, comprising the tibia, calcaneum, astragalus, 

 navicular, entocuneiform, cuboid, and the metatarsus ; from 

 Pikermi. Purchased, 1879. 



B. Ceratorhine Group. 



There are two horns ; cutting-teeth are developed in both jaws, 

 and the upper true molars have a buttress. There are three digits 

 in the manus. 



Rhinoceros schleiermacheri, Kaup . 

 Syn. Rhinoceros sansaniensis, Lartet 2 . 

 Dihoplus schleiermacheri, Brandt 3 . 



Dentition : I. *, C. , Pm. J, M. |. The upper cheek-teeth are 

 exceedingly like those of R. incisivus, but are usually larger ; the 

 third true molar is distinguished by the presence of a tubercle, 

 instead of a minute talon, on the posterior surface, while the pre- 

 molars are distinguished by the absence of an inner cingulum. In 

 the Eppelsheim cranium pm. 4 has three oostae. The colles of the 

 premolar are usually united for at least half their height, so that 

 there is a deep descent into the median valley. The lower canines 

 are smaller than in R. incisivus, and the mandibular symphysia 

 relatively wider and natter. It is very difficult to distinguish 

 isolated first and second upper true molars of the two species, 

 although those of the present species have no external cingulum. 

 The present form is rather larger than R. sumatrensis, from which 

 it is readily distinguished by the structure of the teeth, and the 

 form of the nasals and premaxillse. It apparently ranges from the 

 Middle Miocene of Sansan to the Lower Pliocene of Pikermi. The 

 Sansan race is of smaller size than that of Eppelsheim. 



Hob. Europe. 



M. 2781. Cast of the cranium and mandible. The original is from 

 the Upper Miocene of Eppelsheim, Hessen Darmstadt, and 

 is preserved in the Museum at Darmstadt ; it is figured 

 by Kaup in the Oss. Foss. d. Darmstadt, pt. 3, pi. x. fig. 1, 

 and in the ' Beitrage,' pt. 1, pi. x. fig. 1. The dentition 

 is figured in pi. xi. fig. 5 of the former work. Purchased. 



49660. Cast of a laterally crushed cranium. The original is from 

 the Upper Miocene of Eppelsheim. Purchased, 1878, 



1 Isis, 1832, p. 902. 



2 In Laurillard's Diet. Univ. d'Hist. Nat. vol. xi. p. 101 (1849). 



3 M&n. Ac. Imp. St. Pdtersbourg, ser. 7, vol. xxvi. art. 5, p. 49 (1878). 



