Cynomops mexicanus (Jones & Genoways, 1967)

Don E. Wilson & Russell A. Mittermeier, 2019, Molossidae, Handbook of the Mammals of the World – Volume 9 Bats, Barcelona: Lynx Edicions, pp. 598-672 : 639-640

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Cynomops mexicanus


51. View Plate 48: Molossidae

Mexican Dog-faced Bat

Cynomops mexicanus

French: Cynomope du Mexigue / German: Mexiko-Bulldogfledermaus / Spanish: Cynomop de México

Taxonomy. Molossops greenhalli mexicanus J. K. Jones & Genoways, 1967 ,

“7- 5 mi.

[= 12 km] SE Tecomate, 1500 ft [= 457 m], Jalisco,” Mexico.

Cynomops mexicanus was elevated to a full species as a result of a phylogenetic analysis that recovered this species as a monophyletic group, not closely related to C. greenhalli . Monotypic.

Distribution. Known from scattered localities on the Pacific coast of Mexico and Yucatan Peninsula. View Figure

Descriptive notes. Head-body 61-74 mm, tail 28-34 mm, ear 12:7-17-5 mm, hindfoot 8-12 mm, forearm 33-2-37 mm; weight 11-183 g. Males are larger than females. Pelage of the Mexican Dog-faced Bat is light brown to dark grayish brown dorsally, with paler venter; pelage is silky, and dorsal fur is not long (c. 4 mm on shoulders); dorsal hairs are bicolored, with basal one-half pale buff. Face is blackish and virtually naked. Upper lip and dorsal border of narial region are smooth. Ears are triangular and blackish,slightly separated from each other on forehead (space less than 4 mm). Feet and tail are also blackish, and patagium varies from yellowish brown to blackish. Propatagium is narrow, and posterior plagiopatagium is inserted lateral to base offeet. There is light brown or dark grayish-brown fur along basal one-third of forearm and along adjacent propatagium. A patch of fur extends from posterodorsal surface of distal plagiopatagium, next to wrist, to fourth dactylopatagium. Skull is relatively long, with narrow postorbital constriction that forms smooth angle between rostrum and braincase (130-140°), which may be observed in dorsal view of skull. Anterior face of lacrimal ridge slopes smoothly to forehead and nasal process of premaxilla is reduced, with lateral margin of external nares concave. There is a deep fossa on posterior squamosal bone where posterior zygomatic arch meets braincase. Mandible is gracile, with gently curved corpus along its length, and P, is one half or less the height of P,. Median ridge on lingual face of P, is vestigial or absent. Chromosomal complement has 2n = 34 and FN = 60.

Habitat. Tropical deciduous forests, including pine-oak and cloud forests. It occurs from lowlands to elevations up to 1500 m.

Food and Feeding. The Mexican Dog-faced Batis an aerial insectivore.

Breeding. The Mexican Dog-faced Batis reported to be seasonally monoestrous. One female was recorded with signs of ovulation in January.

Activity patterns. The Mexican Dog-faced Bat has been captured in mist nets set over swift-flowing streams and ponds, or under bridges overrivers.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Least Concern on The IUCN Red List.

Bibliography. Gardner (1977c), Jones & Dunnigan (1965), Jones & Genoways (1967a), MacSwiney et al. (2006), Moras et al. (2018), Peters et al. (2002), Sanchez-Hernandez et al. (2009).














Cynomops mexicanus

Don E. Wilson & Russell A. Mittermeier 2019

Molossops greenhalli mexicanus

J. K. Jones & Genoways 1967