Polydactyly in the largest New World fruit bat, Artibeus lituratus

Abstract

Polydactyly in bats has rarely been observed; a few cases are recorded for insectivorous molossid and vespertilionid species in North America. Here we report polydactyly in the foliage‐roosting phyllostomid Artibeus lituratus, in the southern Pantanal floodplain and adjacent uplands, Brazil. Bats were mist‐netted in six populations, and capture rate per population was estimated. Of 444 A. lituratus individuals sampled, one female and one male exhibited supernumerary toes. These cases occurred in the two densest populations, in sites where forests are distributed in small disconnected fragments. This situation could favour increased inbreeding in A. lituratus and, indirectly, the manifestation of polydactyly.

Extreme bilateral polydactyly in a wild‐caught western grey kangaroo

“…Most commonly, a single supernumerary digit is reported in cases of polydactyly, and further that these additional digits (in domestic species at least) are often rudimentary and diminutive in appearance, and with poorly developed muscular connections. A rarely observed occurrence of polydactyly in fruit bats reported a female individual with eight (right) and seven (left) presumably functional pedal digits (Goncalves et al, 2012). (In this case, a male specimen also exhibiting polydactyly was described; increased likelihood of inbreeding, resulting from high population density, were considered the most likely cause of these manifestations of the reported polydactyly).…”

“…Considerable diversity in polydactylous phenotypes has been described in cats (Danforth, 1947;Hamelin, Begon, Conchou, Fusellier, & Abitbol, 2017;Lettice, Hill, Devenney, & Hill, 2008). The condition seems to be less frequently observed in wildlife, however, reports exist for numerous groups of vertebrates including mammalian (Castle, 1906;Chapman, 2006;Goncalves, Fischer, Carvalho, & Ferreira, 2012;Gugolek, Strychalski, & Konstantynowicz, 2011;Wright, 1934), reptilian (see Lazi c & Crnobrnja-Isailovi c, 2012), amphibian (Borkin & Pikulik, 1986), and avian (Hollander & Levi, 1942;Klingler & Glasmann, 2019;Sakai, 2006) species.…”

Morcegos da Bacia do Alto Paraguai: revisão da fauna e distribuição de registros

“…Carvalho, 2017;Bordignon & Shapiro, 2018). No Pantanal, foi registrada em ambientes florestais, como matas ciliares, capões, cordilheiras e formações monoespecíficas (F. Gonçalves et al, 2012). No planalto, foi registrada em matas secas e semidecíduas (Camargo et al, 2009).…”

“…Ferreira et al, 2010). Há casos de polidactilia (F. Gonçalves et al, 2012) e de infecção por vírus rábico (Deus et al, 2003) e Trypanosama cruzi (Thomas et al, 2007). Ectoparasitas: ácaro Periglischrus iheringi (Spinturnicidae); moscas Aspidoptera phyllostomatis, M. aranea e Paratrichobius longicrus (Streblidae) (C. Silva & Graciolli, 2013;Graciolli et al, 2017; (Figura 99).…”

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“…Carvalho, 2017;Bordignon & Shapiro, 2018). No Pantanal, foi registrada em ambientes florestais, como matas ciliares, capões, cordilheiras e formações monoespecíficas (F. Gonçalves et al, 2012). No planalto, foi registrada em matas secas e semidecíduas (Camargo et al, 2009).…”