Rhinolophus thomasi Andersen 1905, sp. n.
Creators: name: Andersen, Knud
Publisher: name: Zenodo
Year: 1905
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Rhinolophidae
Rhinolophus
Rhinolophus thomasi

description: 12. Rhinolophus <b>,</b> sp. n. (Plate fig. 10.) <i>Rhinolophus affinis rouxi?</i> (non Temin.), Thomas, Ann. Mus. Civ. Genova (2) x. (1892) p. 15, pl. xi. <i>fig</i>. <b>3.</b> <i>Diagnosis.</i> Allied to <i>Rh. rouxi,</i> but p2 external to the tooth-row. Smaller than <i>rouXi,</i> with considerably shorter metacarpals, and the tip of the lancet excessively shortened. Third metacarpal 30’4-31 mm. <b>Forearm</b> 44 8-45'7 mm. <i>Details.</i> While being similar to <i>Rh. rouXi</i> in the shape of the sella and the ears, and the proportionate length of the tail, <i>Rh. thomasi</i> differs, externally, from that species in the following particulars: <i>—</i> The horse-shoe is considerably narrower; it is even narrower than in the smaller <i>borneensis</i> and in the much smaller <i>malayanus.</i> The tip of the lancet is exceedingly short, almost rudimentary; it is the hastate lancet of <i>rouXi</i> carried to an extreme. The general size is smaller, as seen by the measurements of the forearm. But the metacarpals are proportionately <i>much</i> shorter, as short as in the much smaller <i>malayanus.</i> III.2 is comparatively longer than in <i>rouxi, i. e.</i> more than 4 the length of III. (cf. <i>nereis</i> and <i>stheno).</i> V.2 is extremely short. <i>Measurements</i> <i>of</i> Rhinolophus rouxi <i>and</i> thomasi. <i>Colour.</i> To judge from specimens preserved in alcohol, probably not far from being the same as in the dark phase of Nepal examples of <i>Rh. rouXi.</i> <i>Skull.</i> The <i>essential</i> characters are as in <i>rouXi,</i> thus proving <i> <i>Rh</i>. thomasi</i> to be an offshoot from that type of Bat, not (as might very well be supposed, in view of the short metacarpals) fioni <i>borneensis.</i> The skull of <i>Rh. thomasi</i> agrees with that of <i>rouXi</i> in the broad brain-case; it differs from <i>rouXi</i> in the much smaller size. Compared with <i>borneensis,</i> the skull of <i>Rh. thomasi</i> is as small <i>as</i> in the smallest individuals I have seen of <i>borneensis</i> (even <i>as</i> small as in <i>malayanus),</i> but <b>the</b> brain-case is markedly broader, <i>even</i> broader than in the largest <i>borneensis</i>, and the supraorbital length is <i>exceedingly</i> short <i>(cf.</i> measurements, p. 100). Dentition. p3 external; p2 and p4 in contact; p2 <i>eXternal.</i> Upper <i>canine and, p</i> 1 <i>in contact.</i> Both of the specimens examined are identical in dentition. <i>Measurements.</i> On p. 100. <i>Type.</i> &amp;female; ad. (in alcohol). Karin Hills, Burma, 1888. Collected by <i>Signor</i> Leonardo Fea. Presented by Marquis G. Doria. Brit. Mus. no. 90.4.7.10. I venture to connect with this <i>fine</i> species the name of <i>Mr</i>. Oldfield Thomas, who already thirteen years ago <i>(I.</i> s. <i>c.) pointed</i> out that it could scarcely be identified with any hitherto known form, but refrained from describing it as new, owing to the cenerai confused state of this group of Bats.
description: Published as part of <i>Andersen, Knud, 1905, On some Bats of the Genus Rhinolophus, with Remarks on their Mutual Affinities, and Descriptions of Twenty-six new Forms., pp. 75-145 in Proceedings of the Zoological Society of London 2</i> on pages 100-101, DOI: 10.5281/zenodo.3757451