216 ME. J. G. MiLLAis ON [June 4, 



(1) Benhamia gamhiana. 170 mm. by 5 mm. Clitellum xiii.-xx. 



Seminal gutters straight. Genital papillae in pairs, 

 intersegmental xv./xvii., xviii./xx. Calciferous 

 glands in xiv.-xvi. Last hearts in xii. Penial 

 setae 1"25 mm., with not very many spinelets at 

 end which is scooped out on one side. 



(2) Benhamia micliaelseni. 200 mm. by 5 mm. Seminal gutter 



straight. Grenital papillae unpaired, intersegmental 

 xxi./xxiii. Calciferous glands in xiv.-xvi. Penial 

 setae with very numerous spinelets covering a large 

 part of seta ; end bluntish. 



5. On the Second Occurrence of Bechstein^s Bat [Vespertilio 

 bechsteini) in Great Britain. By J. G. Millais^ F.Z.S. 



[Eeceivecl May 31, 1901.] 



(Text-figure 20.) 



On the 10th of March, 1901, whilst exploring a chalk cave in 

 the neighbuorhood of Henley-on-Thames, Mr. Heatley Noble and 

 I captured six Bats. There were 2 Natterer's Bats, 2 Daubenton's 

 Bats, 1 Long-eared Bat, and an unknown stranger, tlie identity of 

 which we were quite unable to determine. 



The peculiar features of this last-named creature differed so 

 materially from every other British Bat, that it was easy to 

 see that it belonged to some i-are species of which the written and 

 figured descriptions were inadequate. After carefully examining 

 Mr. Harting's and Mr. Hall's excellent collections of British Bats, 

 I was still in doubt as to my specimen, though I thought, from Bell's 

 description, the animal must be V. bediateini ; and it was only 

 after a close examination by Mr. W. De Winton (who kindly took 

 it to the British Museum, consulted with Mr. Oldfield Thomas, 

 and compared it with others there), that all doubt as to its identity 

 was set at rest. 



A few words of description of this rare Bat as it appeared 

 in hfe may be of interest to the student of small mammals. In 

 general appearance this species resembles V. nattereri : in colour it 

 is identical, and the tragus and formula of dentition are the same ; 

 but, on the other hand, it differs in possessing an entire and simple 

 margin of the interfemoral raembrame, and in the fact that the 

 adult animal is of greater size and the ears much larger and quite 

 different in shape. The gape, too, is unsualiy wide, extending to 

 the base of the ears, and the wings are different in form. 



However, by far the most striking feature, and one which 

 even the most superficial observer cannot fail to notice, is the 

 great size and peculiar shape of the ears of V. bechsteini. These 

 first bend outwards at an angle of 75 degrees, and then turn 

 upwards to the perpendicular, coming to a rounded point as 



