Cynomops planirostris (W. Peters, 1866)

García, Franger J., Ochoa-G, José, Poma-Urey, José L., Miller, Bruce W., Falcão, Fábio C. & del Valle Alvarez, Martín Roberto, 2024, Expanding the knowledge of the bat fauna of the Brazilian Caatinga: new geographical records of molossid bats (Chiroptera, Molossidae) for the Chapada Diamantina region, with taxonomic notes, ZooKeys 1210, pp. 333-371 : 333-371

Cynomops planirostris (W. Peters, 1866)

Summary of captures.

Six females ( CMARF 2111–2116) and four males ( CMARF 2117–2120).

External measurements and weights.

The average and range of external measurements and weights for females: TLB: 90.00 (80.00–97.00), TL: 31.00 (27.00–36.00), LHL: 5.97 (5.40–7.00), EL: 13.17 (13.00–14.00), W: 9.50 (9.00–10.00). Males: TLB: 90.00 (89.00–92.00), TL: 30.00 (28.00–32.00), LHL: 5.88 (5.34–6.01), EL: 13.80 (13.08–14.05), W: 9.75 (9.00–10.00).

Morphological description.

Dorsal fur varies from chocolate brown to yellowish brown, contrasting with the paler ventral coloration. Skulls with a relatively low and short rostrum (Fig. 3 ). Lacrimal ridge conspicuous with the anterior face sloped smoothly to the forehead. Incisive foramina positioned closer to the accessory foramen and the three foramina (incisive and accessory) forming an equilateral triangle (seen with magnification from above). Basisphenoid pits are shallow. Values of some skull measurements for the females and males are shown in Table 1 .

Identification.

Externally, the forearm length (<40 mm) and the ventral coloration paler than the dorsum in all specimens, in addition to cranial measurements and the arrangement of incisive and accessory foramina in the shape of an equilateral triangle, distinguish this species from its most similar congeners in the area ( Cynomops greenhalli Goodwin, 1958 , and C. milleri (Osgood, 1914) , Moras et al. 2018; López Berrizbeitia and Díaz 2021).

Figures

Figure 3. Dorsal, ventral, and lateral views of the skull of a male (CMARF 2118 A, C lower) and a female (CMARF 2115 B, C upper) of Cynomops planirostris collected in the Caatinga (northeastern Brazil), showing sexual dimorphism in some dimensions D external body features of a female of Cynomops planirostris from the same locality (CMARF 2115). Scale bar 5 mm.