146 MR. OLDFIELD THOMAS OX THE MAMMALS 



a Rooi-haas {Pronolagus), but think the length of the tail too 

 great, while in any case the evidence is insufficient to vipset the 

 usually accepted determination. 



4. BRASiLiENSis. p. 58. Sylvilagus. 



Linnean reference: Syst. N'at. (6) p. 9, no. 1, where the sole 

 quotation is Ray, p. 205, whose account is taken from 

 Marcgrave. 

 Hence 

 Type locality : Pernambuco. 



Genus 25. Castor, p. 58. 



Two species. Type by tautonymyj C. fiber (" Castor, Gesn.").' 



Species : 



1. FIBER, p. 58. Castor. 

 Linnean references : Faun. Suec. no. 23 ; Syst, Nat. (6) p. 10, 



no. i. 

 Ill the latter the only reference is to the former, in which we find 

 Type locality : Lapland. 



2. MOSCHATUS. p. 59. Desmana. 

 Linnean references : Faun, Suec. no. 24 ; Syst. Nat. (6) p. 10, 



no. 2. 

 Type locality : Russia. 



Genus 26. Mus. p. 59. 



Sixteen species. Type by tautonymy : M. musculus (" Mus, 

 Gesn."). 



Species : 



\. PORCELLUS. p. o9. Cavia. 



Linnean references : Westgoth. Resa, p. 244 (misprinted 

 224); Syst. Nat. (6) p. 10, no. 1. 

 Domesticated Cavy. 



2. LEPORiNUS. p. 59. Dasyprocta. 



Sole reference: Catesby, Carol, iii. (i. e. ii. Appendix) p. 18, 

 pi, xviii. 

 An indeterminable species of Dasyprocta, Tail too short and 

 size too large for Myoprocta. 

 No type locality available. 



3. LEMMUS. p. 59. Lemmus. 



Linnean references to Fauna Suecica and Syst. Nat. (6), as 

 well a,s to Act. Stockh. 1740, p. 320, pi. vi. figs. 4 & 5, 

 where Linnseus gives an account of the Norway Lemming. 

 Type locality : La|>land, 



