232 BODENTIA. 



species is slightly smaller than A. amphibius. There seems no 

 reasonable doubt of the identity of A. ambiguns with A. gulielmi. 



Hob. Europe. 



21501. The cranium, mandible, and tibia; from the Pleistocene 

 of Eppelsheim, Hesse-Darmstadt. Purchased, 1847. 



55 b (0. C.) The first lower molar ; from the Bromberg Cave, Posen. 

 Sommering Collection. Purchased, 1827. 



ratttcepS, Keys, and Blasius 1 . 



Syn. Lemmus medium, Nilsson, 



Four outer and five inner angles ia the first lower molar ; three 

 outer and two inner angles in the second upper molar; the first 

 angle of mTT very large ; molars rootless throughout life. 



Nab. Europe. 



55 a (0. C.). The greater part of the right ramus of the mandible, 

 showing the incisor and the first and second molars ; from 

 the Bromberg Cave, Posen. 



Sommering Collection. Purchased, 1827. 



(Linn. 2 ). 



Syn. Mus agrestis, Linn. 3 

 Mus gregarius, Linn. 4 



Five outer and six inner angles in the first lower molar ; three 

 angles on either side of the second upper molar; molars rootless 

 throughout. 



Hob. Europe. 



15084. The greater portion of the right ramus of the mandible, and 

 (Fig.) the tibia; from Kent's-Hole Cavern, Torquay. These 



specimens are figured by Owen in the Brit. Foss. Mammals 



and Birds, p. 206, fig. 77. 



McEnery Collection. Purchased, 1842. 



15084 a. Numerous fragments of the upper and lower jaws ; from 

 Kent's-Hole Cavern. 



McEnery Collection. Purchased, 1842. 



30520. Two rami of the mandible ; from the Pleistocene of Mayence. 

 Hastings Collection. Purchased, 1855. 



1 M6m. Ac. Imp. St. P^tersbourg, vol. iv. p. 333 (1841). 



2 Fauna Suecica, ed. alt. p. 11 (1761), Mus. 3 Loc. cit. 

 4 Syst. Nat. ed. 12, vol. i. p. 84 (1766). 



