Myotis horsfieldii Temminck, 1840

Srinivasulu, Chelmala, Srinivasulu, Aditya, Srinivasulu, Bhargavi, Gopi, Asad, Dar, Tauseef Hamid, Bates, Paul J. J., Rossiter, Stephen J. & Jones, Gareth, 2017, Recent surveys of bats from the Andaman Islands, India: diversity, distribution, and echolocation characteristics, Acta Chiropterologica 19 (2), pp. 419-437 : 432-433

publication ID 10.3161/15081109ACC2017.19.2.018


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Myotis horsfieldii Temminck, 1840


18. Myotis horsfieldii Temminck, 1840 View in CoL

Horsfield’s Myotis

New records

Middle Andaman Islands: Bamboo Nullah, Baratang Island, Devpur and Nayadera; Little Andaman Island: V.K. Pur.

Previous records

Middle Andaman Islands: Webi (HZM); South Andaman Islands: Port Blair ( Andersen, 1907; Hill, 1967).


The Andaman Island endemic subspecies is M. horsfieldii dryas Andersen, 1907 . Out of the 15 individuals captured, eight specimens were collect- ed. Aul et al. (2014) reported the presence of this species from Point Island, Paget Island, North Reef Island, and Smith Island in North Andaman Islands; Interview Island in Middle Andaman Islands, and Little Andaman Island. The endemic subspecies varies from the mainland subspecies, M. h. peshwa, in its bacular morphology.

Echolocation Characteristics

A total of 556 calls were analysed from 12 species of echolocating bats (including a new phonotype of Hipposideros cf. pomona ) from the Andaman Islands. Of these, 378 calls from seven species ( R. andamanensis , R. cognatus , H. pomona , M. spasma , P. javanicus camortae , P. coromandra , and M. horsfieldii dryas ) were analysed in Bat- Sound, and 187 calls from six species ( H. cf. pomona , H. diadema masoni , H. cf. grandis , T. melanopogon , H. tickelli , and T. robustula ) were analysed in AnalookW. Of all the calls analysed in BatSound, 100% of FM calls (Overall, Wilk’s λ = 0.001, P <0.001) and 100% of CF calls (Overall, Wilk’s λ = 0.002, P <0.001), and of all the calls analysed in AnalookW, 99% of FM calls (Overall, Wilk’s λ = 0.024, P <0.001) and 100% of CF calls (Overall, Wilk’s λ = 0.006, P <0.001) were accurately attributed to their respective species ( Table 4).













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