(leuera i\ricronycteri.s (uid CJ lyplioiiyctcris. W?> 



Tail and hi (erf I' moral. — Tho postcaudal porticjti of tlie 

 iiitcrreiiioral is loiigcM- tliaii the tail, tVoiii tlic anus to the tip 

 ol' tlu' last vc'trhra. 



('uloKf. — 'riurc arc two extremes in the eoloiir of the 

 fur: — 



(1) Uppei'side Front's brown with a tinge of russet; base 

 of hairs pnrc white or washed with ecru-drab. Underside 

 M'ood-broM'n, l)ase of hairs scarcely ligliter. 



(2) Upperside dull dark brown without any trace of russet 

 tinge; base of hairs pure Aviiitc or washed with ecru-drab. 

 Underside hair-brown. 



The extremes are connected by several transitional stages. 

 The variation in colour is independent of the locality and, as 

 it seems, of tlie age of the individuals. 



Range. — The same as that of the genus. 



Remarks. — The large p-^ and jf , the median position of the 

 principal cusp of /y'^, the very small notch at the middle of 

 the upper margin of the ear-band, the practically naked 

 forearm, the long hand, the small foot, long calcar, long 

 postcaudal interfemoral, and darker-coloured underside of the 

 body readily distinguish this species from M. minuta. From 

 M. Iiirsuta it diflers by its smaller size and higher car-band, 

 irom M. microtis by its much darker colour. 



1 a. Micronycteris megalutis, f. typica. 



1812. Tlyllophora meyahtis. J. E. Gray, Ann. >S: Mag. N.H. x. (no. C;.')') 

 p. 1'57 ; Dec. 1842. — Type: (S imm., in alcohol; Brazil; Biiti.-sii 

 Museum (unregistered). 



1842. riujllostoma eloiujata, .T. 1']. Gray, ibid. p. 2-")7 ; Pec. 1842.— 

 Type: ad., skin ; Brazil; BiiH^h Museum (no. 42. 8. 17.8). Name 

 ])reoocupied by Phyllostoma tloixjatinn, GeoH'niy, l8lO. Indistin- 

 guishable from the type of Fliylli'phoru mcyalotis. 



\i^oo. Phyllostoma scrobirulatum, J. A. Wagner, Schreber's ' Siiug- 

 thiere,' Suppl. \. p. 627. — New name for Phyllostoma eloiiynta, 

 Gray { = PhyUophora meyalotis, Gray). 



Subspecific characters. — Tooth- rows shorter. Forearm 

 and metacarpals shorter. 



Details. — This southern form of M. megalutis differs from 

 M. m. mexicana in the following particulars : — 



The skull is slightly smaller (see measurements*, pp. 64- 

 65); the mandible shorter; the tooth-rows shorter-, upper teeth 

 6*8-7'3 mm., as against 7"4-7'8 in. mexicana. The length of 



* Only the following measurements require some explanation : — Ears, 

 length from b;ise of hmer margin to tip. III.', IV.^, V,'', measured without 

 the terminal cartilaginous rod. iHki/ll, total length aud basilar It-ngth, 

 to front of canines (not to front of incisors). Upper iuvi lower ti-elh , 

 exclusive of iucisors. 



