34 AMERICAN MUSEUM NOVITATES 
fluid-preserved specimens, and Pat Brunauer 
provided essential bibliographic support. Jim 
Patton set new standards for professional 
generosity in permitting us unrestricted ac- 
cess to the cytochrome-b sequences obtained 
by his lab, and Marcelo Weksler helped us 
analyze them. We gratefully acknowledge a 
familiar debt to Pat Wynne, whose artistic 
skills did so much to enhance our descrip- 
tions of didelphid morphology, and we thank 
Rob Anderson for his technical assistance in 
the production of figures 10 and 12. Our 
manuscript was substantially improved by 
helpful suggestions provided by Rob Ander- 
son, Louise Emmons, David Flores, Al Gard- 
ner, and Rogerio Rossi, who generously read 
a preliminary draft when they had many oth- 
er things to do: we thank them for their time, 
effort, and expertise. 
REFERENCES 
Allen, J.A. 1900. Descriptions of new American 
marsupials. Bulletin of the American Museum 
of Natural History 13: 191-199. 
Allen, J.A. 1901. On a further collection of mam- 
mals from southeastern Peru, collected by Mr. 
H.H. Keays, with descriptions of new species. 
Bulletin of the American Museum of Natural 
History 14: 41-46. 
Allen, J.A., and EM. Chapman. 1897. On a sec- 
ond collection of mammals from the island of 
Trinidad, with descriptions of new species, and 
a note on some mammals from the island of 
Dominica, W.I. Bulletin of the American Mu- 
seum of Natural History 9: 13-30. 
Anderson, R.P. 1999. Preliminary review of the 
systematics and biogeography of the spiny 
pocket mice (Heteromys) of Colombia. Revista 
de la Academia Colombiana de Ciencias Ex- 
actas, Fisicas y Naturales 23(suplemento espe- 
cial): 613-630. 
Anderson, S. 1997. Mammals of Bolivia, taxon- 
omy and distribution. Bulletin of the American 
Museum of Natural History 231: 1-652. 
Anthony, H.E. 1922. Preliminary report on Ecua- 
dorean mammals. No. 2. American Museum 
Novitates 32: 1-6, map. 
Brown, B.E. 2004. Atlas of New World marsu- 
pials. Fieldiana Zoology (new series) 102: i—vii, 
1-308. 
Burmeister, H. 1856. Erlauterung zur Fauna Bras- 
iliens, enthaltend Abbildungen und _ ausfiihrli- 
che Beschreibungen neuer oder ungentigend 
bekannter Thier-Arten. Berlin: Druck und Ver- 
lag von Georg Reimer. 
NO. 3466 
Cabrera, A. 1913. Dos mamiferos nuevos de la 
fauna neotropical. Trabajos del Museo de Cien- 
cias Naturales (Serie Zooldgica) 9: 1-15 + 1 
pl. 
Cabrera, A. 1958[°*1957’’]. Catalogo de los mam- 
iferos de América del Sur [part 1]. Revista del 
Museo Argentino de Ciencias Naturales “‘Ber- 
nardino Rivadavia’’ (Ciencias Zoolégicas) 4: 
1-307. 
Carleton, M.D., and G.G. Musser. 1989. System- 
atic studies of oryzomyine rodents (Muridae, 
Sigmodontinae): a synopsis of Microryzomys. 
Bulletin of the American Museum of Natural 
History 191: 1-83. 
Chubb, C. 1919. Notes on collections of birds in 
the British Museum, from Ecuador, Peru, Bo- 
livia, and Argentina. Part 1. Tinamidae—Ralli- 
dae. Ibis 11: 1-55. 
Cordero R., G.A. 2001. Ecological data on Mar- 
mosops fuscatus in a lowland tropical forest in 
northern Venezuela. Mammalia 65: 228-231. 
Creighton, G.K. 1984. Systematic studies on 
opossums (Didelphidae) and rodents (Criceti- 
dae). Ph.D. diss., University of Michigan. Ann 
Arbor, MI: University Microfilms. 
Cunha, A.A., and M.V. Vieira. 2002. Support di- 
ameter, incline, and vertical movements of four 
didelphid marsupials in the Atlantic forest of 
Brazil. Journal of Zoology (London) 258: 419— 
426. 
DMA. 1992. Gazetteer of Bolivia, 2nd ed. Wash- 
ington, DC: Defense Mapping Agency. 
Emmons, L.H. 1997. Neotropical rainforest mam- 
mals, 2nd ed. Chicago: University of Chicago 
Press. 
Fairchild, G.B., and C.O. Handley, Jr. 1966. Gaz- 
etteer of collecting localities in Panama. Jn R.L. 
Wenzel and V.J. Tipton (editors), Ectoparasites 
of Panama: 9-22, folding map.Chicago: Field 
Museum of Natural History. 
Flores, D.A., M.M. Diaz, and R.M. Barquez. 
2000. Mouse opossums (Didelphimorphia, Di- 
delphidae) of northwestern Argentina: system- 
atics and distribution. Zeitschrift fiir Sdugetier- 
kunde 65: 321-339. 
Gardner, A.L. 1990 [*°1989’’]. Two new mammals 
from southern Venezuela and comments on the 
affinities of the highland fauna of Cerro de la 
Neblina. Jn K.H. Redford and J.E Eisenberg 
(editors), Advances in Neotropical mammalo- 
gy: 411-424. Gainesville, FL: Sandhill Crane 
Press. [According to A.L. Gardner (personal 
commun.), this volume was published on 6 
February 1990] 
Gardner, A.L. 1993. Order Didelphimorphia. Jn 
D.E. Wilson and D.M. Reeder (editors), Mam- 
mal species of the world, 2nd ed: 15—23.Wash- 
ington, DC: Smithsonian Institution Press. 
