DOLOMYS 341 



characters of generic importance to our notice; and these are 

 dealt with below in the account of D. bogdariovi. 



Remarks. — Dolomys is distinguished from Mimomys chiefly 

 by the presence of five closed triangles, instead of three only, 

 in its m^ ; and from Apistomys chiefly by its narrower palate 

 and by the Evotomys-Mke general form of its molars. Its relation- 

 ships with other genera are discussed above at p. 45. 



Three species are at present known, viz., D. milleri Nehring, 

 a large form, with primitive dentition, occurring in the Upper 

 Pliocene of Hungary ; D. episcopalis Mehely, a small species, 

 with some dental specializations, found in the Lower Pleistocene 

 of Hungary ; and D. bogdanovi, a large species, apparently closely 

 related to D. milleri, living in Montenegro. 



1. tDoIomys milleri Nehring. 



1898. Dolomys milleri Nehring, Zool. Anz., 21. p. 13, figs. 1-3 (in 

 part; the original description embodies some characters described 

 from Hungarian specimens of Mimomys plioccenicus, see M6hely, 

 1914, p. 182). 



1914. Dolomys milleri Mehely, Ann. Mas. Nat. Hangar., 12, p. 181. 



Lectotype. — Neither Nehring nor Mehely indicates which of 

 the specimens before him should be taken as the type ; I 

 therefore select the imperfect left mandibular ramus of which 

 the cheek-teeth are figured by Nehring {op. cit., figs. 2 and 3) 

 as lectotype. A better figure of the teeth of this specimen is 

 given by Mehely {op. cit., Taf. ii, fig. 8). The specimen belongs 

 to the Natural History Museum of Vienna and was collected in 

 June 1847 by J. S. Petenyi. 



Type locality and horizon. — Upper Pliocene bone breccia 

 fining fissures in limestone at Beremend, near Mohacz, Southern 

 Hungary. 



Range in time and space. — Known only from the Upper 

 Pliocene of Hungary. Most of the specimens hitherto deter- 

 mined were obtained at Beremend ; but Mehely figures the teeth 

 of two mandibular rami from the Upper Pliocene of Csarnota, 

 Hungary, which were collected by Dr. T. Kormos and are now 

 in the collection of the Hungarian Geological Survey. 



Characters. — Size large, the length of the mandibular tooth- 

 row in adults ranging between 8-5 and 9 mm. Alveolus of lower 

 incisor extending posteriorly to level of lower border of dental 

 foramen. 



Cheek-teeth rooted ; their infolds without cement. Enamel 

 pattern of m^, mr, m^ and m^ normal; m^ with outer salient 

 angles almost as well developed relatively as in in^ ; m^ with 

 three salient angles on each side and a bulge on the outer side 

 behind representing a vestige of a fourth outer angle, its dentinal 

 spaces substantially closed ; m^ with a posterior loop, five closed 

 triangles and an anterior loop composed of the fourth outer and 

 the fifth and sixth inner salient angles, the last-named angle 



