MAMMALIA. 
19 
Arvicola. In JJe la Fontaine’s book on the Mammalia of Luxemburg an 
Arvicola pseudo-arvalis is noticed (p. 87) ; it appears to be a very doubtful 
species. ^ 
Arvicola riparia. On its numerous synonyms see Allen, Mamnl. Mass, 
p. 231. 
Arvicola curtata described as a new species from Lower California by 
Cope, Proc. Ac. Nat. Sc. Philad. 1868, p. 2. 
f^G corny s heterodus. Notes by Dr. v. Frantzius, 1. c. p. 269. 
'iGerbilliis tmyuiculaius and brevicaudaitis Gguied by A. Milne-Ed wards in 
Recherch. Hist. Nat. Mammif. pi. 11. 
Ctenomys mendocina, sp. n., Philippi, Wiegm. Arch. ] 860, p. 88, from 
Mendoza. Notes on Ct. brasiliensis and magellanica are added. 
’sJ Cercolabes novcc hispanicc in Costa Rica. Fr.sntzius, 1. c. p. 272. 
\JErethizon dorsatus = E. epixantlms = E. rufescens (Gray). Allen, Mamm. - 
Massach. p. 237. 
\Dasyprocta cristata. Notes by Frantzius, 1. c. p. 274. 
'•^^Leptis timidus. On abnormal growth of the incisors, Friedlowsky, Sitzgs- 
ber. Wien. Akad. 1869, lix. p. 341, figs. 6-6. 
Lrptis tigrcnsis, sp. n., Blanford, Ann. k Mag. Nat. Hist. 1869, iv. p. 330, 
from Abyssinia. 
\^^epus americanus. Mr. Welch has made observations on the modifications 
ana change of colour of the fur of this hare in sequence to the seasons. Proc. 
Zool. Soc. 1869, pp. 228-236. 
'^Leptis bairdii is described as a new species by Hayden from the Wind 
Mountains, Western North America. Amer. Natur. iii.JL809, p. 113, with 
woodcut. 
\^Lepus brasiliensis in Costa Rica. Frantzius, /. c. p. 276. 
\jZepus cunictdus cannot be acclimatized in Costa Rica. Frantzius, /. c. 
p. 277. 
^^Lepus cuniculus. The Rev. W. Houghton has examined the ancient lite- 
rature treating of the rabbit. Ann. & Mag, Nat. Hist. 1869, iii. pp. 179- 
183. 
Edentata. 
^ Dr. Gratis 'Catalogue of Edentate Mammalia^ has been 
noticed above, p. 4. 
^ Manis dahnanni. On the muscles of the limbs, Humphry, Journ. Anat. 
& Physiol. V. 1869, p. 17. 
'^Dasypus gymnurus and femstratus. Notes by Frantzius, Wiegm. Arch. 
1869, p. 309. 
Orycteropus capensis. A woodcut from a living example. Sclp,ter, J’roc, 
Zool. Soc. 1869, p. 431. 
-4 Myrmccophaga. Three species are found in Costa Rica — M.jubaia, ieira- 
dactyla, and dorsalis. Frantzius, /. c. pp. 307-309. 
Myrmccophaga didactyla. Its myology described by Gal ton, Ann. & Mag. 
Nat. Hist. 1869, iv. pp. 244-264 ; on the muscles of the limbs, Humphry, 
Journ. Anat. & Physiol, v. 1869, p. 17. 
'4 Bradypus Iridactylus. On its m 3 'ology, Macalister, Ann. & Mag. Nat. Hist. 
c 2 
