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Show 1026 MR. OLDFIELD THOMAS ON THE [Dec. 15, 146. Coendou, Lac. Mem. de l'Inst. iii. p. 496 (1801). [Syne-theres and Cercolabes, P. Cuv. Mem. Mus. ix. p. 427 (1822).] B. CnJETOMYINJE. 147. Chcetomys, Gray. P.Z.S. 1818, p. 21. XVI. Chinchillidae. 148. Chinchilla, Benn. Gard. Zool. Soc. i. p. 1 (1829). 149. Lagidium, Mey. N. Act. Ac. Leop. xvi. p. 576 (1833). 150. Lagostomus, Brooks. Trans. Linu. Soc. xvi. p. 102 (1828). XVII. Dasyproctidae. 151. Dasyprocta, 111. Prodr. Syst. Mamm. p. 93 (1811). 152. Ccelogenys, P. Cuv. Ann. Mus. x. p. 203 (1807). XVIII. Dinomyidae. 153. Dinomys, Pet. MB. Ak. Berl. 1873, p. 551. XIX. Caviidae. 154. Cavia, Pall. Misc. Zool. p. 30 (1766). 155. Dollchotis, Desm. Mamm. ii. p. 360 (1822). 156. Hydrochcerus, Briss. Regne Anim. p. 116 (1756). Suborder II. DUPLICIDENTATI. P. LAGOMORPHA. XX. Ochotonidae. 157. Ochotona, Link. Beytr. Nat. ii. p. 74 (1795). [Lagomys1, G. Cuv. Tabl. Elein. p. 132 (1798).] at first sight difficult to believe that it is really a member of the family at all, and not a relative either of Loncheres or Cazlogenys, as Burmeister suggested. But further examination leads m e to think that its dental resemblance to Loncheres is only superficial, and that its closeness to Coendou in other respects, including the identity of the structure of the feet and pterygoid regions, makes it best placed as a peculiar subfamily of the Erethizontidce. 1 Lagomys (1798), as used for the Pikas, is doubly invalid, as it is both later in date than Link's Ochotona, and is preoccupied by Storr's Lagomys (1780), which is a synonym of Arctomgs (cf. Miller, Voles, p. 13, footnote 4). |
