the IJats of the Famili/ Mc^^iadtrniatitla;. 137 



III. MacRODERMA, ]\Iiller. 



1900. Macrwlennn, fJcrrit S. Miller, Jun., Proc. Biol. Soc. Wasb. xix. 

 p. 84 (4th June, liKK5). 



Diagnosis. — See *' Key," p. 130. 



Skull. — Frontal shield wider in front tlian behind ; its 

 anterior angles raised into the same plane as the posterior (in 

 the two preceding genera the anterior angles are dej)ressed to 

 the bases of the maxillary processes of the zygomatic arches) ; 

 antcorbital swellings obliterated (distinct in MegaJernia and 

 Eucheira) ; as a consequence of these modificitions the whole 

 area of the pentagonal frontal shield Hat and all its angles 

 sharply and strongly defined. Prenasal notch still longer 

 than in Eucheira (measured from cingulum of canines about 

 ^ of total length of skull) ; posteriorly pointed, not rounded 

 or flattened as in Megadenna and Eucheira. 



Teeth. — p- absent. Cusp 3 of 7>t' moved backward as in 

 Eucheira ; cusp 2 moved inward to a line between cusps 1 

 and 5, almost obliterated ; cusp 4 much reduced, maikedly 

 below the level of the remaining cusps. Antero-interual 

 basal cusp of upper canines strongly developed. 



x^ose-leof. — Posterior leaf ovoid as in Megaderma^ double 

 tlie length of the median leaf as in Eucheira ; median leaf 

 shaped as in Eucheira. Front margin of horseshoe plicate, 

 suggesting a rudimentary form of the much more complicated 

 structure in Lavia. 



Traaus. — Both lobes shoit and broad, even more so than 

 in Eucheira. 



Jiange. — Central Queensland. 



Species. — One, viz. M. gigas. 



Nomenclature. — The genus Macroderma was established by 

 Miller {I. 8. c.) iox Megaderma gigas and characterized by the 

 absence of /y-, the shape of the frontal shield, and the much 

 greater development of the cartilaginous premaxillaries. 



Macroderma gigas. Dobs. 



1880. Meynderma giyas, Dobson, P. Z. S. p. 4G1, pi. xlvi. 



Jh'ognosis. — Forearm 103-104 mm. 



Specimens examined. — 2 (1 skin) and 2 skulls, from Central 

 Queensland. 



Range. — As yet known only from Central Queensland. 



