Molossidae Gervais, 1856

Wiantoro, Sigit, Flannery, Tim F., Brown, Dan, Armstrong, Kyle N. & Helgen, Kristofer M., 2023, The mammal fauna of Kofiau Island, off western New Guinea, Records of the Australian Museum 75 (5), pp. 653-662 : 659

Molossidae Gervais, 1856

Chaerephon jobensis (Miller, 1902) . Distributed across New Guinea, Seram, Yapen and New Britain and northern Australia ( Flannery, 1995; Armstrong, 2021b), Kofiau is the smallest island this taxon has been recorded on. A single recorded sequence of very narrowband (“flat”) echolocation calls with a characteristic frequency at the fundamental of ca. 16 kHz (and weaker second harmonic at 32 kHz) most likely represents C. jobensis (call type 16 fFM) ( Fig 3 ).

Figures

Figure 3. Representative echolocation call sequence portions of the species identified (time between pulses has been compressed).20 bFM and 30 bFM: Myotis sp. cf. stalkeri; 53 st.cFM.d: Miniopterus sp. cf. australis; 16 fFM: Chaerephon jobensis; 35 i.fFM.d: Emballonura alecto; 63 i.fFM.d: Mosia nigrescens; 55 mCF: Hipposideros diadema; 55 lCF: Rhinolophus euryotis; 118 sCF: Aselliscus tricuspidatus.