Systematics of the genus Eumops (Chiroptera, Molossidae)

Abstract

Bats of the genus Eumops range from the southern United States to central Argentina. In this study, 11 operational taxonomic units (OTUs) were designated within the genus; Eumops auripendulus , E. bonariensis, E. dabbenei, E. glaucinus glaucinus, E. g.floridanus, E. hansae, E. maurus, E. perotis perotis, E. p. californicus , E. trumbulli, and E. underwoodi. A systematic examination of the genus based on morphometric characters included analyses of sexual dimorphism, relationships among all OTUs, and geographic variation. Males were larger than females in seven taxa examined for sexual dimorphism. Phenetic relationships among OTUs were assessed using cluster analysis and principal component analysis. These numerical taxonomic techniques established nine species within the genus:

Rediscovery, ecology, and identification of rare free-tailed bats (Chiroptera: Molossidae) in Costa Rica

“…We concur with Eger (2008) in recognizing E. nanus as representing a species level taxon different from E. bonariensis, E. delticus, and E. patagonicus. Eger (1977) treated both delticus and nanus as subspecies of E. bonariensis, and recognized that there were morphological differences between these taxa. Eumops nanus is now known to occur in southern Mexico, throughout Central America, and in northwestern South America (Eger, 2008).…”

First occurrences of the greater bonneted Eumops perotis (Molossidae) in the State of Paraná and synthesis of the known records for Brazil

“…The taxonomic record of the genus is complex and problematic; especially due disagreement regarding the patterns of craniodental measurements in the known forms (see Sanborn 1932, Eger 1977, Freeman 1981, Eger 2007, McDonough et al 2008. Following the taxonomic review recommended by Simmons (2005), with the addition of the review of the South American forms summarized by Eger (2007) and contributions of Timm & Genoways (2004) and Baker et al (2009), the Eumops genus is currently represented by fourteen species: E. auripendulus (Shaw, 1800); E. bonariensis (Peters, 1874); E. dabbenei Thomas, 1914; E. delticus Thomas, 1914;E.…”

“…Eumops perotis is widely distributed across the American continent (Sanborn 1932, Eger 1977, Koopman 1982, Eger 2007. It has been recorded in the United States, Mexico, Cuba, Venezuela, Colombia, Bolivia, Equator, Peru, Paraguay, Argentina and Brazil (Sanborn 1932, de la Puente 1951, Marinkelle 1968, Best et al 1996, Barquez et al 1999, Simmons 2005, Eger 2007 (Figure 1).…”

“…It has been recorded in the United States, Mexico, Cuba, Venezuela, Colombia, Bolivia, Equator, Peru, Paraguay, Argentina and Brazil (Sanborn 1932, de la Puente 1951, Marinkelle 1968, Best et al 1996, Barquez et al 1999, Simmons 2005, Eger 2007 (Figure 1). This species is the largest among its congeners, with forearm length ranging from 73 to 83 mm (Eger 1977, Best et al 1996, Gregorin & Taddei 2002. The ears are well-developed (from 36 to 47 mm), extending beyond the nose (Sanborn 1932, Eger 1977, and the lip is without cutaneous folds (Gregorin & Taddei 2002).…”

“…This species is the largest among its congeners, with forearm length ranging from 73 to 83 mm (Eger 1977, Best et al 1996, Gregorin & Taddei 2002. The ears are well-developed (from 36 to 47 mm), extending beyond the nose (Sanborn 1932, Eger 1977, and the lip is without cutaneous folds (Gregorin & Taddei 2002). Fur color ranges from light brown to dark gray, with a slightly paler abdomen and the wing membranes have a blackish tone (Best et al 1996, Barquez et al 1999).…”