SYSTEMATIC WORK. 
Mamm. 51 
CASTORIDvE. 
Castor fiber and canadensis : Harting (147), notes on their history and 
habits. C. jwgcri : Deperet & Revolle (98), from the Upper 
Miocene of Cerdagne. 
MYOMORPHA. 
Muridad. 
Sminthus subtilis, Walecki (388) and (389), from the Urals. 
Gerbillus gleadowi , n. sp., Murray, (251) p. 240, Beruto, Upper Sind. 
Mus decumanus ^ rattus, and tectorum : Ihering (162), on these three 
House Rats from Brazil. M. rattus and decumanus : Thomas (371) on 
their differences. M. decumanus and musculus : Lataste (192) on the 
origin of the domestic breeds. M. humei , n. sp., Thomas, (368) p. 63, 
pi. v, from Manipur, on the Burma- Assam frontier. M. piletus , n. sp., 
Gregorio (137), from Post-pliocene of Palermo. 
Eliurus myoxinus, n. g. & sp., Milne-Edwards (242), allied to 
Ilypogeomys , from Madagascar. 
Ilesperomys. Leoiie (202) on the species collected by Dr. v. Ihering 
in Rio Grande do Sul, Brazil. IT. laticbps var. intermedia , n. var., IT. 
dorsalis var. obscura , n. var., H. subterraneus , var. henseli , n. var., Leche 
(202), from Brazil. H. rufescens, n. sp., Thomas, (366), p. 250, from 
Rio Janeiro, Brazil. H. pyrrhonotus , n. sp., Thomas (367) described 
originally as II. pyrrliorhinus , Pr. Max, now renamed II. yyrrlionotus. 
Fiber zibetliicus. Lee (203), how ho opens the Unio ; Butler (57), 
notes on its habitation and habits. 
Neofiber alleni. True (380), additional description of this new 
Mammal. 
Geomyidj:. 
Thomomys talpoides perpallidus , n. subsp., Merriam (235), from S. 
California. 
Dipodomys. True (383) recognizes 2 species in the genus, D. phillipsi, 
Gray, and D. agilis , Gambel. 
HYSTRICOMORPHA. 
OCTODONTIDAS. 
Aulacodus swindernianus. Noak (274), notes on the species. 
Pellegrina panormensis , n. g. & sp., Gregorio (137), fossil from 
Post-pliocene of Palermo. 
Hystricidas. 
Hystrix wiedemanni, n. sp., Roger (317), from the Miocene of Reis- 
chenau, in Swabia. 
