Quadrupeds. 4939 



in France, Holland and Belgium. In Holland M. Temminck says it 

 is rare, and confined to the northern parts, not appearing abroad until 

 dark, and taking its food over the surface of stagnant water; but it is 

 somewhat remarkable that the Museum of that country does not con- 

 tain a native specimen. In Belgium the Museums of Antwerp and 

 Ghent do not contain examples, although they have other European 

 species. Our Museums do not possess it, nor is it enumerated in the 

 catalogue of the Mammalia of the Frankfort Museum, made complete 

 up to the present time by the kindness of a friend, who has added to 

 the catalogue all the species supplied to the Museum since its publi- 

 cation. Indeed, the omission of the species by Wagner, in his 

 continuation of Schreiber's work, would seem to indicate that it is not 

 known in Germany. 



With respect to the specimen mentioned by Mr. Buckton, I have 

 since had an opportunity of seeing it at the British Museum, and at 

 once gave it as my opinion that it was a young example of V. dasyc- 

 nemus, Bole, the V. limnophilus of M. Temminck's monograph, 

 an opinion I before expressed from reading Mr. Buckton's description. 

 This species appears to be very common in the vicinity of Leyden, 

 and was pointed out to me, flying in considerable numbers over the 

 surface of the water, by Dr. Schlegel, as we were walking in the 

 evening beneath the fine trees bordering the canal that runs round 

 the town. This and the common Noctule were the only species we 

 saw about Leyden. 



The result of these examinations tends to the removal of V. emargi- 

 natus from the British list, and the addition of V. dasycnemus to it. 



The following description of Vespertilio dasycnemus, added at the 

 request of the Editor, is taken partly from that given by M. Temminck, 

 and partly from notes made by myself from specimens in the Leyden 

 Museum : — 



Vespertilio dasycnemus, Bole, Isis (1825). Be Selys-Longch. 



Etudes Micromam., p. 139 (1839). Keys. u. Bias. Die Wirb. 



Europe p. xvi. and p. 55 (1840). De Selys, Faune Beige, 



p. 19 (1842). 

 V. limnophilus, Temm. Mon. Mam. tome ii. p. 176 (1835 to 1841). 

 V. einarginatus, Buckton, Linn. Trans. (Dec. 1853). 



Ears of medium size, oval, with the lobe at the base of the outer 

 edge; but moderately developed, varying somewhat in this respect: 



