MacPhee R. D. E., Greenwood A. D., 2007: Continuity and change in the extinction dynamics of late Quaternary muskox (Ovibos): Genetic and radiometric evidence. 10 pp. Bull. Carn. Mus. Nat. Hist. 39: 203-212.

 Malikov V. G., Meyer M. N., Graphodatsky A. S., Polyakov A. V., Sablina O. V., Vaziri A. Sh., Nazari F., Zima J., 1999: On a taxonomic position of some karyomorphs belonging to genus Calomyscus (Rodentia, Cricetidae). 6 pp. Zoological sessions 281(1998): 27-32.

 Mares M. A., 1996: Observations on the mammals of Tucumán province, Argentina. I. Systematics, distribution, and ecology of the Didelphimorphia, Xenarthra, Chiroptera, Primates, Carnivora, Perissodactyla, Artiodactyla, and Lagomorpha. 64 pp. 

 Mares M. A., Bárquez, Braun, 1995: Distribution and ecology of some Argentine bats (Mammalia). 19 pp. [81170] Annals of Carnegie Museum 64(3): 219-237.

 Marinis A. M. D., Lapiti L., 1994: Collections of Italian Mustelidae (Mammalia, Carnivora) housed in Italian Museums. 71 pp. (in English). Bolletino del Museo regionale di Scienze Naturali – Torino 12(1): 255-325.

 Marinis De A., M., Masseti M., Sforzi A., 1996: Note on the non-flying terrestrial mammals of the Tuscan Archipelago, Northern Tyrrhenian Sea (Italy). 7 pp. (in Italian). Bolletino del Museo regionale di Scienze Naturali – Torino 14(1): 275-281.

 Markov G., 1964: Nasekomojadni bozajnici i grizači v Trakija. 35 pp. 

 Masseti M., Sara M., 2003: Non-volant terrestrial mammals on mediterranean islands: Tilos (Dodecanese, Greece), a case study. 8 pp. [MAM 228] Bonner zoologische Beiträge 51(2002)(4): 261-268.

 Mazzolli M., 1993: Ocorrencia de Puma concolor (Linnaeus) (Felidae, Carnivora) em áreas de vegetacao remanescentede Santa Catarina, Brasil. 7 pp. Revta bras. Zool. 10(4): 581-587.

 McAllan I. A. W., Bruce M. D., 1989: Some problems in vertebrate nomenclature. I. Mammals. 18 pp. (in English). Bolletino del Museo regionale di Scienze Naturali – Torino 7(2): 443-460.

 McCarthy T. J., Albuja L. V., Alberico M. S., 2006: A new species of Chocoan Sturnira (Chiroptera: Phyllostomidae: Stenodermatinae) from western Ecuador and Colombia. 13 pp. Annals of Carnegie Museum 75(2): 97-110.

 Mendes P., Vieira T. B., 2009: Registros notáveis de morcegos (Chiroptera: Molossidae) no estado do Espírito Santo, Brasil – Noteworty records of bats (Chiroptera, Molossidae) from the state of Espírito Santo, Brazil. 6 pp. Boletim do Museu de Biologia Mello Leitao (N.S.) 25: 87-93.

 Méndez E., 1977: Mammalian-siphonapteran associations. The environment, and biogeography of mammals of Southwestern Colombia. 92 pp. Quaestiones Entomologicae 13: 91-182.

 Métais G., 2006: New basal selenodont artiodactyls from the pondaung formation (late middle eocene, Myanmar) and the phylogenetic relationships of early ruminants. 17 pp. Annals of Carnegie Museum 75(1): 51-67.

 Meyer I., 2001: Fledermäuse in Erfurt (Mammalia: Chiroptera). 21 pp. [80103] Veröffentlichungen des Naturkundemuseum Erfurt 20: 83-103.

 Meyer M. N., Golenishchev F. N., Bulatova N. S., 1999: Peculiarities of geographic distribution of two karyomorphs of Microtus arvalis Pallas, 1779 (Rodentia, Arvicolinae) in European Russia. 6 pp. Zoological sessions 281(1998): 33-38.

 Meyer-Oehme D., 1968: Zur Kenntnis der Chiropteren-Fauna Afghanistans. 7 pp. Bonner zoologische Beiträge 19: 97-103.

 Mezhzherin S. V., 1991: O vidovoj samostoyatelnosti Apodemus (Sylvaemus) ponticus (Rodentia, Muridae). 7 pp. Vestnik Zool. 1991(6): 34-40.

 Mezhzherin S. V., Mikhajlenko A. G., 1991: O vidovoj prinadlezhnosti Apodemus sylvaticus tscherga (Rodentia, Muridae) Altaya. 10 pp. Vestnik Zool. 1991(3): 35-44.

 Miyazaki N., Amano M., Fujise Y., 1987: Growth and skull morphology of the harbour porpoises in the Japanese waters. 10 pp. Memoirs of the National Science Museum 19: 137-146.

 Miyazaki N., Kuramochi T., Amano M., 1991: Pacific white-sides dolphins (Lagonorhynchus obliquidens) of northern Hokkaido. 9 pp. Memoirs of the National Science Museum 24: 131-139.

 Miyazaki N., Nakamura Y., Amano M., 1986: Two stranding records of Dall’s porpoises on the coast of Joetsu, Niigata Prefecture. 10 pp. Memoirs of the National Science Museum 19: 193-202.

 Moravec J., Böhme W., 2009: Second find of the recently discovered Amazonian giant peccary, Pecari maximus (Mammalia: Tayassuidae) van Roosmalen et al., 2007: First record from Bolivia. 6 pp.  Bonner zoologische Beiträge 56(2008)(1-2): 49-54.

 Moreby C., 1978: The biting louse genus Werneckiella (Phthiraptera: Trichodectidae) ectoparasitic on the horse family Equidae (Mammalia: Perissodactyla). 18 pp. 

 Mostecký V., 1969: Jungpleistozäne Säugetiere aus der „Chlupáč – Höhle” auf dem Hügel „Kobyla” bei Koněprusy (Böhmischer karst). 56 pp. Acta Musei Nationalis Pragae 25B(1): 1-56.

 Mostini L., 2001: Materiali per una storia del lupo (Canis lupus) taglie e premi per la cattura in Piemonte. 8 pp. [MAM 34] Rivista Piemontese di Storia Naturale 22: 281-288.

 Mostini L., 2010: Vertebrati rinvenuti vittime del traffico automobilistico in un anno lungo un percorso predeterminato. Ripetizione di un’indagine a distanza di un ventennio. Vertebrates found victims of car accidents in a year along a predetermined distance. The repetition of a survey carried out twenty years previously. 8 pp. Rivista Piemontese di Storia Naturale 31: 241-248.

 Mostini L., 2013: Materiali per una storia del lupo (Canis lupus). Alcuni documenti legislativi del XIX secolo del Regno Sabaudo. Materials for a wolf history (Canis lupus). Some legal documents of the House of Savoy in the 19th century. 5 pp. Rivista Piemontese di Storia Naturale 34: 261-265.

 Mucedda M., 1997: Prima segnalazione in Sardegna di Nyctalus leisleri (Chiroptera, Vespertilionidae). 5 pp. (in Italian). Bolletino del Museo regionale di Scienze Naturali – Torino 15(1): 225-229.

 Müller M. F., Reis N. R., 1992: Parcitao de recursos alimentares entre quatro espécies de morcegos frugívoros (Chiroptera, Phyllostomidae). 11 pp. Revta bras. Zool. 9(3-4): 345-355.