286 WE. E. B. NEWTON ON FOSSILS FB03I [Aug. 1904,. 



are found actually in the coal-beds at Masatly accompanied by 

 Corbicula semistriata, thus fixing the age of the coal as Middle 

 Oligocene, or the Stampian stage of that Period. 1 



A single imperfect specimen of what is considered to be Corbicula 

 semistriata was obtained by Mr. Claude "Warner, when boring for 

 petroleum 3 miles inland from Hora, at a depth of rather more 

 than 1000 feet from the surface. 



Mammalia. 

 Axtheacotheeioi cf. mis us, Cuvier. (PI. XXIV, fig. 20.) 



Ant lira cot Jierium mini's, Cuvier, ' Recherches sur les Ossemens Fossiles ' 2nd ed. 



vol. iii (1822) p. 403, & vol. v (1824) pt. ii, p. 528. 

 Antliracotherium cf. minus, Lydekker, ' Catal. Foss. Mammalia Brit. Mus.' pt. ii 



(1885) p. 242. 



Remains of Antliracotherium associated with Corbicula semi- 

 striata have been found embedded in a sample of coal from Masatly. 

 These consist of anterior molars and premolars belonging to both 

 sides of a mandible, which are of much smaller size than those 

 characterizing either A. magnum or A. alsaticum, being probably 

 related to A. cf. minus occurring in the Hempstead Beds of the Isle 

 of Wight, and provisionally identified as such by Mr. R. Lydekker 

 from material in the British Museum (Natural History). It may 

 be stated that Dr. C. W. Andrews agrees with this determination^ 

 and, like myself, experiences some difficulty in analysing any 

 differences that may exist between the teeth from Hempstead and 

 those from the Turkish locality. 



Horizon. — Oligocene (Stampian). 



Lo calit y . — Masatly. 



Mollusca — Gasteopoda. 

 Melanopsis cf. fusifobmis, J. Sowerby. 



llelanopsis fusiformis, J. Sowerby, ' Mineral Uonchology ' vol. iv (1822) p. 35 & 

 pi. cccxxxii, figs. 1-7; J. Morris, in Forbes's 'Isle of Wight'" Mem. GeoL 

 Surv. (1856) p.^156 & pi. vi, tig. 7. 



The specimens referred to this form of Melanopsis agree remark- 

 ably well with Morris's figures published in Forbes's ' Isle of Wight.' 

 The narrower and more elongate aperture appears to separate the 



1 Anthracotherium is essentially a genus of the Oligocene Period, not having 

 been found, so far as can be ascertained, either below the Sannoisian or above 

 the Aquitanian stages of that group of rocks. It occurs, among other European 

 localities, in lignites of Lower Tongrian age near Gran in Hungary, as recorded 

 by Hebert & Munier-Chalmas, associated with Corbicula semistriata, O. E. 

 Acad. Sci. Paris, vol. lxxxv (1877) p. 184 ; and Prof. Hoernes reports it, without 

 however the sbell, in the coal-formation of Transylvania, Verhandl. d. k.-k. 

 Geol. Eeichsanst. 1878, p. 146 ; while the present discovery at Masatly forms 

 the most south-easterly point in Europe for this genus. 



As the Hempstead Beds of England are correlated by Prof. Renevier, 

 Prof. A. de Lapparent, and others with the Middle or Stampian ( = Rupelian) 

 stage of the Oligocene. it is considered that the pakeontological evidence is 

 in favour of the Masatly beds belonging to the same horizon. 



