22 Mamm. 
MAMMALIA. 
DiPODID.53. 
E. OouES monographs his family Zapodidon [</. Zool. Rec. xiii. Mamm, 
p. 22]. N. Am. Rod. pp. 461-479. 
HYSTRICIDiE. 
J. A. Allen monographs the Nearctic and recent fossil species. N. 
Am. Rod, pp, 385-398. 
CniNOHILLlDiE. 
Lagostomus trichodagtylus. IC^otes on its habits ; E. Gibson, P. N. II. 
3oc. Gli^sg. iii. pp. 136-140. 
Caviid.®. 
Hydrochoirus capyhara. Note on its ccecum [c/*. Zool. Rec. xiii. Mamm. 
p. 23] ; II. C. Chapman, P. Ac. Philad. 1877, p. 146. 
LAQOMYIDiE. 
J. A. Allen monographs the single Nearctic species Lagomys princexis. 
]Sr. Am. Rod. pp. 405^413. 
JjEPOI^ID4i5. 
J. A. Allen monographs the American Hares, including the Neotropical 
and fossil forms. N. Am. Rod. pp. 267-379. 
Lepus graysoni, sp. n., id. 1. c. p. 347, Tres Marias Islands and Costa 
Rica. 
^ Lepus hraziliams. The Central American form described as var. gahhi ; 
id. 1. c. p. 349. 
Lepus variabilis. Notes on its change of colour and habits in Livonia ; 
O. von Loewis, Zool. Gart. 1877, pp. 16-20. On its distribution; T. 
Salvadori, Atti Acc. Tor. xii. pp. 141-160. * 
^ Lepus glacialis. On its habits in Grinnell Land; H. W. Feildeu, 
Zool. 1877, pp. 353-355. 
Lepus hiddulphi^ sp. n., W. T, Blanford, J. A, S. B. xlvi. pt. 2, p. 324, 
Gilgit [Cashmere]. 
Lepus. H. V. Nathusius discusses the evidence as to the alleged cross- 
ing of the Hare and Rabbit. Die so-genannt. Leporiden [cf. supra, 
p. 6]. 
Genus iNOBUTiw sedis, 
^Allomys, g. n. (foss.), O. C. Marsh, Am. J, Sci. (3) xiv. p. 253 ; probably 
allied to Pteromys, but with teeth like those of Ungulates, and represent- 
ing a distinct family, Allomyidce. T^pe, A. nitens,%p. n., id. 1. c. Miocene 
of Oregon. 
