138 Messr-'. K. Andersen and R. C. Wrougliton on 



o" 



IV. Lavia, Gray. 

 1838. Lavia, Gray, Mag. Zool. Bot. ii. p. 400. 



./>%«05^s^— See " Key," p. 130. 



Skill/. — Frontal shield parallel-sided, but appcaviiii^ wider 

 behind, owing to development of the posterior pair of angles 

 into lon<T processes; otiierwise as in Macroderma. Prenasal 

 notch about the same proportional length as in Eucheim, 

 phowing a tendency to become pointed behind in some indi- 

 viduals (compare Mucrodernia), 



Teeth. — />^ absent. All five cusps of ?)<' equally developed 

 and placed in a regular W. Antero-internal basal cusp of 

 upper canine about as in Megaderma. 



Nose-leaf. — Posterior leaf in shape a long triangle, with 

 slightly conv(^x sides and truncated apex, three times as long 

 as the median leaf; median longitudinal fold gradually 

 widening anteriorly, the junction with the median haf 

 forming no appreciable angle on each side ; median leaf 

 small, with a lobe on each side anteriorly which reaches to 

 the margin of the horseshoe and covers the nostrils ; horse- 

 shoe with a notch on each side in front, between which the 

 front margin of the horseshoe is produced into a free lobe ; 

 the sides of this lobe folded together downward, and then the 

 whole turned backward to lie on the face of the median leaf. 



Tragus. — External lobe very long. 



Range. — W. Coast of Africa, from Cape Verd to the 

 moutli of the Niger ; Upper Nile Valley; Uganda; British 

 and German East Africa. 



Species. — One, viz. Lavia frons. 



Aonienc/afure. — Type species of the genu?, Megaderma 

 frons, Geoff. Gray proj)Osed the generic name J.avia on 

 account of the shape of the nose-leaf and frontal shield and 

 the absence of y/. 



1. Lavia frons, Geoff. 



Characttrs and Hange. — Those of the genus. 

 Races. — Two, viz. Lavia frons frons and Lavia frons 

 affinis. 



1 a. Lavia frons frons^ Geoff. 



]7o9. La Feuille, Daubenton, M^m. Acad. Sci. Paris, p. 388. 



1800. ? J't'^pertilio me(;alotis, Bechstein, in Pennant's Uebersicbt der 



vierfiiss. Tliiere, p. 022. 

 1810. Meyaderma frons, C4eoffroy, Ann. Mus. d'Hist. Nat. xv. p. 192. 

 1;K).5. Lavia re.r, Gerrit S. Miller, Jan., Proc. Biol. Soc. Wash, xviii. 



p. 227 (9th December, 1905). 



