444 MR. E. T. NLWrON ON NEW MAMMALS FROM 



"11. Oil some New Mammals from the Eed and Norwich Crags. 

 By E. T. Newton, Esq., E.G.S. (Eead May 14, 1890.) 



(Communicated by permission of the Director-General of the Geological Survey.) 



[Plate XVIII.] 



Contents. 

 Introduction. 

 Description of Species : — 



1. Lutra dubia, Blainv. 



2. Lutra Reevei, sp. nov. 



3. Phoca Moori, sp. nov. 



4. Phocauella minor, Van Bencd. 

 o. Trogontherium minus, sp. nov. 



6. Mesoplodon floris, sp. nov. 



7. Mesoplodon scaphoides, sp. nov. 



8. Ailurus anglicus, DawHm. 

 Explanation of Plate XVITI. 



Introduction. 



Notwithstanding the many additions which within the last few 

 years have been made to our knowledge of the Pliocene Mammalian 

 Eauna, by Mr. Lydekker, in the Quarterly Journal of this Society, 

 in the ' Geological Magazine,' and in the British-Museum Catalogues 

 (1885-87^, several species new to the British Crags, and others 

 altogether new to science, have come to light during a critical inves- 

 tigation of the Crag Vertebrata, which it has been my official duty 

 to undertake. 



As it is likely to be some time before the results of this inves- 

 tigation can be published, it is hoped that an account of the new 

 forms will be acceptable to the Eellows of this Society. 



For several of the specimens here described I am indebted to the 

 kindness of Mr. E. C. Moor, of Great Bealings, Suffolk, who has 

 most courteously placed these and many other fossils at my dis- 

 posal. Mr. James Eeeve, of the Norwich Museum, has likewise 

 been good enough to lend me many specimens, and among them 

 the unique tooth which is now to be named after him. For the 

 opportunity of studying the rostrum of Mesoplodon Floweri * I am 

 under obligation to the genial Curator of the Ipswich Museum, Dr. 

 Taylor. To all these friends of science I tender my best thanks for 

 their kindly assistance. 



Description of Species. 



1 . Lutra dubia, Blainville. (PI. XVIII. figs. 1 a-1 o.) 



Within the last few years Mr. E. C. Moor, of Great Bealings, 

 has obtained from the nodule-bed of the Eed Crag, near Wood- 

 bridge, a right ramus of a lower jaw of an otter-like animal (fig. 1), 



■* Sincethispiiper was read, the author has altered this name to M. floris, see 

 p. 448. 



