494 University of California Publications in Zoology (Vou. 17 
1916a. Aplodontia humboldtiana: a new mountain beaver from the Humboldt 
Bay district, California. Proc. Biol. Soe. Wash., 29, 21-24. 
Original description of Aplodontia humboldtiana. 
1916b. The status of the beavers of western North America, with a con- 
sideration of the factors in their speciation. Univ. Calif. Publ. 
Zool., 12, 413-495, figs. A-Q in text. 
Paragraph on the Aplodontiidae (pp. 470, 471). ‘ 
1916c. Two new aplodontias from western North America. Univ. Calif. 
Publ. Zool., 12, 497-501. 
Original deseriptions of Aplodontia rufa grisea (p. 497), and 
Aplodontia californica columbiana (p. 499). 
THOMAS, O. 
1896. On the genera of rodents: an attempt to bring up to date the cur- 
rent arrangement of the order. Proc. Zool. Soc. London, 1896, 
1012-1028. 
Places Anomalurus and Aplodontia in groups by themselves, 
specifically providing that their true relationships will have to be 
shown by further research (p. 1014). 
TOWNSEND, C. H. 
1887. Field-notes on the mammals, birds and reptiles of northern California. 
Proc. U. 8. Nat. Mus., 10, 159-241. 
Discussion of Haplodon rufus (pp. 174-175); mention made of 
H. major (footnote, p. 174). 
TROUESSART, FE. L. 
1897. Catalogus mammalium tam viventium quam fossilium. (Berlin, Fried- 
lander), tome 1, fase. 2, pp. 219-452. 
Lists two species of Aplodontia, namely [ Aplodontia] rufa and 
[Aplodontia] major (p. 450). 
1904. Catalogus mammalium tam viventium quam fossilium. Quinquenalle 
supplementum: Rodentia, fase. 2, pp. 289-546. 
Lists seven forms of Aplodontia, namely [Aplodontia] rufa 
[4. r.] californica, [A. r.] rainieri, [A.] pacifica, [A.] phaea, [A.] 
olympica, | A.] major (p. 348). 
TRUE, F. W. 
1885. <A provisional list of the mammals of North and Central America, 
and the West Indian Islands. Proc. U.S. Nat. Mus., 7, App., 587— 
611. 
Reference to family Haplodontidae and to Haplodon rufus 
(p. 596). 
TULLBERG, T. 
1896. Zur Anatomie des Haplodon rufus. Zooliska Studier (Upsala, Alm- 
quist), pp. 231-251, 2 pls. 
Anatomy and remarks on classification (p. 250). 
WAGLER, J. 
1830. Natiirliches System der Amphibien mit vorangehender Classification 
der Siugethiere und Vogel (Munich, Cotta), vi + 354 pp., 2 tables. 
Haplodon listed (p. 4); sewellel (p. 22). 
WaGner, J. A. 
1843. Die Siiugethiere [Schreber]. Supplementband, 3. Abt., pp. xiv + 614. 
Haplodon characterized; Haplodon leporinus discussed (pp. 395— 
396). 
