TITLES. 
Hamm. 3 
[Allen, J. A.] List of Mammals and Birds collected in North-eastern 
Sonora and North-western Chihuahua, Mexico, on the Lumholtz 
Archeological Expedition. T. c. pp. 27-42. 
Notices 16 species of Mammals, among which a Sciurus is described as 
new. [See p. 30, Sciuridce.~\ 
. List of Mammals collected by Mr. Charles P. Rowley in the San 
Juan Region of Colorado, Now Mexico, and Utah, with Descriptions 
of New Species. T. c. pp. 69-84. 
Chronicles 34 species, among which 5 Rodents are new. [See p. 31, 
Muridiv , and p. 33, Dipodidce .] 
. On a Collection of Mammals from the San Pedro Martir Region 
of Lower California, with Notes on other Species, particularly of 
the Genus Sitomys. T. c. pp. 181-202. 
Of the 20 forms recorded, 3 Sitomys, a Tamias , and a Scapanus are new. 
[See p. 27, Talpidcv , p. 30, Sciuridce , and p. 31, Mur idee. 
. Further Notes on Costa Rica Mammals, with Description of a 
New Species of Oryzomys. T. c. pp. 237-240. [See p. 31, 
Mur idee. ~\ 
. Description of a New Species of Opossum from the Isthmus of 
Tehuantepec, Mexico. T. c. pp. 235 & 236. [See p. 42, Didel - 
phyidee.'] 
•. Description of a new Mouse from Lake County, California. T. c. 
pp. 335 & 336. [See p. 31, Muridce.~\ 
. Description of a New Geomys from Costa Rica. T. c. pp. 337 & 
338. [See p. 32, Geomyidce.~\ 
& Chapman, F. M. On a Collection of Mammals from the Island 
of Trinidad, with Descriptions of New Species. T. c. pp. 203-234. 
34 species, of which 9 are new, are noticed, and a complete list of the 
Mammalian fauna of the island is given. [See p. 27, Phyllostomaiidce, 
p. 31, Muridce, and p. 33, Octodoyitidoe.~\ 
Amegiiino, F. Apuntes Preliminares sobre el Genero Theosodon. Rev. 
Jard. Zool. B. Ayres, i, pp. 20-29, fig. [See p. 34, Macraucheniidce .] 
. Les Premiers Mammiferes (Relations entre les Mammiferes Dipro- 
todontes Eocenes de l’Amerique du Nord et ceux de la R^publique 
Argentine). Rev. Gen. Sci. iv, pp. 77—81, figg. [See p. 42, 1 Wulti- 
tuberculata.'] 
. Les Mammiferes Fossiles de la'Patagonie Australe. Rev. Scient. 
li, pp. 13-17 & 731. Translated Amor. Natural, xxvii, pp. 439-449. 
Extracts from a letter to Trouessart, in which, after discussing the age 
of the Santa Cruz deposits, the author gives notes on the Ungulates, and 
some other Patagonian Mammals. Theosodon (an ancestral form of 
Macrciuchenid) is stated to be pentedactylate ; and the same is asserted to 
