TAXONOMIC REVISION OF THE GENUS TRIAENOPS (CHIROPTERA: HIPPOSIDERIDAE) WITH DESCRIPTION OF A NEW SPECIES FROM SOUTHERN ARABIA AND DEFINITIONS OF A NEW GENUS AND TRIBE
| Authors | |
|---|---|
| Year of publication | 2009 |
| Type | Article in Periodical |
| Magazine / Source | Folia Zoologica |
| MU Faculty or unit | |
| Citation | |
| Web | http://nm-cz.nm.netservis.cz/download/pm/zoo/benda_lit/Benda2009fzm.pdf |
| Keywords | Triaenops parvus sp nov.; Paratriaenops gen. nov.; Triaenopini trib. nov.; morphological analysis; genetic analysis; cytochrome b; Middle East; Afrotropics; Madagascar |
| Description | The genus Triaenops has been considered monospecific in its African and Middle Eastern range (T. persicus), while three other species have been recognised as endemic to Madagascar (T. menamena, T. furculus, and T. auritus), and another to the western Seychelles (T. pauliani). We analysed representative samples of T persicus from East Africa and the Middle East using both morphological and molecular genetics approaches and compared them with most of the available type material of species of this genus. Morphological comparisons revealed four distinct morphotypes in the set of examined specimens; one in Africa, the others in the Middle East. The Middle Eastern morphotypes differed mainly in size, while the allopatric African form showed differences in skull shape. Two of three Arabian morphotypes occur in sympatry. Cytochrome b gene-based molecular analysis revealed significant divergences (K2P distance 6.4-8.1% in complete cyt b sequence) among most of the morphotypes. Therefore, we propose a split of the current T persicus rank into three species: T afer in Africa, and T persicus and T parvus sp. nov. in the Middle East. The results of the molecular analysis also indicated relatively close proximity of the Malagasy T menamena to Arabian T persicus, suggesting a northern route of colonisation of Madagascar from populations from the Middle East or north-eastern Africa as a plausible alternative to presumed colonisation from East Africa. Due to a considerable genetic distance (21.6-26.2% in 731 bp sequence of cyt b) and substantial morphological differences from the continental forms of Triaenops as well as from Malagasy T. menamena, we propose generic status (Paratriaenops gen. nov.) for the group of Malagasy species, T furculus, T auritus, and T pauliani. We separated the genera Triaenops and Paratriaenops gen. nov. from other hipposiderid bats into Triaenopini trib. nov. recognising their isolated position within the family Hipposideridae Lydekker, 1891. |
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