1* MAMMALIA. 



larger. There can be no question therefore as to the close 

 alEnity of this Crag form with the genus Ailurus, or as to the 

 propriety, of including this upper mol&» in Prof. Dawkins' species 

 A. anglicus. 



It is remarkable that the genus Ailurus, which is now re- 

 stricted in range to the higher regions of the north-eastern 

 Himalaya, and is, according to Dr. W. T. Blanford (Fauna 

 of British India, Mammalia, p. 189, 1888) closely related to the 

 American racoons, should be found fossil in the Eno-lish Pliocene. 



Genus HYiENARCTOS, Falconer and Cautley. 

 PI.ATE I., Pigs. 20, a, b, 21, a, b, 22. 



A right upper first true molar from the Red Crag near Waldring- 

 field, in the Canham collection, and now in the IpSwich Museum, 

 was described and figured by Prof. Flower in 1877 (Quart. 

 Journ. Geo]. Soc, Vol. XXXIII., p. 534), and as no appreciable 

 diflference could be detected between this and the corresponding 

 tooth of Hycenarctos sivalensis, Falc. and Caut. it was provision- 

 ally referred to that species. Another upper first molar tooth 

 (Plate I., fig. 20), but from the left side and unworn, was obtained 

 by Mr. Charlesworth from the Red Crag of Felixstow, and is 

 now in the Reed Collection in the York Museum. This specimen 

 was recognised as belonging to Hyonnarctos by Mr. W. Davies of 

 the British Museum, and was noticed by Prof. Flower in the 

 paper above referred to. Mr. K. Lydekker (Pal. Ind., Ser. 10., 

 Vol. II., p. 227 ; and Cat. Foss. Mamm. Brit. Mus., Part i., 

 p. 155, 1885) is of opinion that these Red Crag teeth ought not 

 to be referred to the s^&c\&s H. sivalensis; and thinks it better 

 for the present simply to retain them in the genus Hycenarctos 

 without giving them a specific name ; a suggestion which is here 

 accepted. 



There is in the Reed Collection, York Museum, a lower right 

 second molar tooth ( Plate I., fig. 2 1), from the Red Crag of Felix- 

 stow, which agrees so closely with the corresponding tooth of .Hyce?i- 

 arctos as to leave no doubt that it belongs to that genus. The crown 

 measures 29"5 mm. in length, 22 mm, in width, and 13 mm. in 

 height. The inner and outer surfaces are so much inclined as to 

 make the area of the summit of the crown narrower than in the 

 species figured by Mr. Lydekker from India (Pal. Ind., Ser. 10. 

 Vol. II. Plate xxxi.), or that from China (Cat. Foss. Mamm. 

 Brit. Mus., Part i., p. 157). There is a strongly developed cin- 

 gulum on the outer side which rises anteriorly and posteriorly 

 almost to the top of the terminal cusps. The front of the tooth 

 is higher than the back, and the upper surface has the tubercles 

 and wrinkles only slightly developed. 



Mr. Reed's Crag collection includes the crown of a large lower 

 right canine (Plate I., fig. 22), also from the Red Crag of Felix- 

 stow, which has on the inner side a prominent ridge, and is 



