Rhinolophus sumatranus, Andersen, 1905

Andersen, Knud, 1905, On some Bats of the Genus Rhinolophus, with Remarks on their Mutual Affinities, and Descriptions of Twenty-six new Forms., Proceedings of the Zoological Society of London 2, pp. 75-145 : 133-134

24. Rhinolophus sumatranus , sp. n.

Rhinolophus petersi (non Dobson 1872 et 1878) Dobson, P. Z. S. 1880, p. 462 (specimen examined).

Diagnosis. Acuminatus section, but sella very distinctly

expanded below the middle. Width of horse-shoe 8 ’ 3 mm. Forearm 51-51 ’ 2 mm. Details. Chief characters:—(1) compared with acuminatus : the

very different shape of the sella, as described above; width at base, at expansion, and at summit: 2, 2’4, and 1 ’ 7 mm.; (2) compared with calypso : the much narrower horse-shoe. Colour. ♂ ad., in alcohol, unfaded; teeth unworn. Upper

side darker than “ mars-brown, ” lighter than “ burnt-umber ”; base of hairs scarcely differing in colour; under side “ russet. ” This looks like an intermediate stage between a “ dark phase ” and a “ russet phase. ” A second specimen (Göttingen Museum) is, however, quite of the same colour.

Skull. As in Rh. acuminatus .

Dentition (one skull). p3 external, p., and p4 quite in contact. p2 in row; a minute cusp, pointing inwards. The interspace between the upper canine and p1 is narrower than in acuminatus .

Measurements. Below.

Type. ♂ ad. (in alcohol). Lower Langkat, Sumatra ; 1898. Presented by Herr Gustav Schneider. Brit. Mus. no. 4.4.1.1.