MammalBase - Accepted taxon: Calomys callosus

Accepted taxon: Calomys callosus
Taxon:	Calomys callosus
Rank:	Species
Higher Classification:	RODENTIA \| MYOMORPHA \| Muroidea \| Cricetidae \| Sigmodontinae \| Calomys
Reference:	Wilson, Don E., and DeeAnn M. Reeder, eds. Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), JHU Press, 2005.

Fig.1 - Ternary plot of the proximate analysis for the Calomys callosus diet.
CF (Crude Fibre) 24, ASH (Ash contents) 12, NFE (Nitrogen-Free-Extract) 48, CP (Crude Protein) 13, EE (Ether Extract) 3. See details for the calculations in Lintulaakso, K., Tatti, N. and Žliobaitė, I., 2022. Quantifying mammalian diets. Mammalian Biology, pp.1-15. [DOI]

Table 1. List of Diet Items for Calomys callosus.
TSN Complete name	Part	Ratio ^a.	Reference(s)
Magnoliopsida	SHOOT	100.00	Damuth, J…

^a. Standardized values. See details for the calculations in Lintulaakso, K., Tatti, N. and Žliobaitė, I., 2022. Quantifying mammalian diets. Mammalian Biology, pp.1-15. [DOI]

Table 2. List of Standard Traits for Calomys callosus.
Trait	Selected Value	All Value(s)	Reference(s)
Dietary category: Eisenberg 1981	Frugivore-Granivore	Frugivore-Granivore	– Paglia,A. P., 2012, Lista Anotada dos Mamíferos do Brasil 2ª Edição Annotated Checklist of Brazilian Mammals 2nd Edition
Dietary category: Miljutin 2009	Frugivore	Frugivore, Herbivore	– Paglia,A. P., 2012, Lista Anotada dos Mamíferos do Brasil 2ª Edição Annotated Checklist of Brazilian Mammals 2nd Edition, Ricardo A. Ojeda, Pedro G. Blendinger, Roland Brandl, 2000, 'Mammals in South American drylands: faunal similarity and trophic structure', Global Ecology and Biogeography, vol. 9, no. 2, pp. 115-123
Hypsodonty	1 = brachydont	1 = brachydont	– Carleton,M. D., 1980, Phylogenetic relationships in neotomine-peromyscine rodents (Muroidea) and a reappraisal of the dichotomy within New World Cricetinae,, Pacheco,V. R., 2003, Phylogenetic analyses of the Thomasomyini (Muroidea: Sigmodontinae) based on morphological data, Unpublished Ph.D.diss., City University of New York
Locomotion: Eisenberg 1981	Terrestrial	Terrestrial	– Paglia,A. P., 2012, Lista Anotada dos Mamíferos do Brasil 2ª Edição Annotated Checklist of Brazilian Mammals 2nd Edition

Table 3. List of Standard Measurements for Calomys callosus.
Measurement	Location	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)
Body Mass (BM)	nan	g	-	-	-	-	15	-	54	-	Freudenth…
Body Mass (BM)	Brazil	g	-	-	-	-	15	30.5	46	-	Paglia,A.…

Table 4. List of other Measurements ^b. for Calomys callosus.
Measurement	Location	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)
BMR (kJ/h)	nan	kJ/h	-	-	-	-	-	1	-	-	McNab, B.…

^b. other Measurements. Source Measurements which are not listed on or mapped with the Standard Traits..

Table 5. List of Data Sources for Calomys callosus.
Taxon	Reference	Match	Status
Calomys callosus	Pacheco,V. R., 2003, Phylogenetic analyses of the Thomasomyini (Muroidea: Sigmodontinae) based on morphological data, Unpublished Ph.D.diss., City University of New York	1: Exact Taxon match	Verified - Accepted
Calomys callosus	Carleton,M. D., 1980, Phylogenetic relationships in neotomine-peromyscine rodents (Muroidea) and a reappraisal of the dichotomy within New World Cricetinae,	1: Exact Taxon match	Verified - Accepted
Calomys callosus	Ojeda,R. A., 2001, Mammals in South American drylands: faunal similarity and trophic structure, Global Ecology and Biogeography	1: Exact Taxon match	Verified - Accepted
Calomys callosus	Paglia,A. P., 2012, Lista Anotada dos MamÃƒÂferos do Brasil 2Ã‚Âª EdiÃƒÂ§ÃƒÂ£o Annotated Checklist of Brazilian Mammals,	1: Exact Taxon match	Verified - Accepted
Calomys callosus	Damuth, J. 2010. ABSOLUT 6 a mammalian database compiled by the national center for ecological analysis and synthesis (NCEAS ) workshop on mammalian communities.	1: Exact Taxon match	Verified - Accepted
Calomys callosus	McNab, B.K., 2008. An analysis of the factors that influence the level and scaling of mammalian BMR. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 151(1), pp.5-28.	1: Exact Taxon match	Verified - Accepted
Calomys callosus	Freudenthal, M. and Martín-Suárez, E., 2013. Estimating body mass of fossil rodents. Scripta Geologica, 145, pp.1-513.	1: Exact Taxon match	Verified - Accepted

Citation for this page: [The MammalBase community 2026. / CC BY 4.0. http://doi.org/10.5281/zenodo.7462864 Calomys callosus , Accessed 10th June 2026 at https://mammalbase.net/me/8705]