

Zoological Club of the Linnean Society. 503^ 



with an attempt to prove it& identity with the Pipistrelle of trench au- 

 thours: 5?/ i^e Rev. Leonard Jenyns, M.A., FX-S.J were read. 



The Common Bat of our country having teen referred by every syste- 

 matic v^^riter from the time of Pennant to the present day to Vespertilio 

 murinus, Linn., Mr. Jenyns points out the great difference between our 

 Bat and that to w^hich continental authours give the Linnean name, both 

 in coloui", general appearance, the shape of the auricle and its opercu- 

 lum, and in the relative dimensions and absolute size. He considers 

 the species of the foreign authours to be thff^esp. murinus : and he 

 states that all our English writers, including Griffith and Fleming, have 

 only^repeated Pennant's description, or translated Linnaeus's specific 

 character. He then concludes that our Common Bat is the Pipistrelle 

 of Daubenton and succeeding writers. .^r ; 



The authour adds so^e interesting observations on the habit§ 'of Bats : 

 each species, he finds, have their peculiar place of concealment ; also 

 that the same increase of temperature v^hich will revive them from tor- 

 pidity early in the winter, v^ill not have that effect (nor v^rill ^^n a much 

 higher one) after they have been rendered compl^Jely torpid bv severe 

 frost. 



ZOOLOGICAL CLUBI^P THE LINNEAN SOCIETY. fK 



June 10, 1828. — Mr. Yarrell exhibited preparations of the <racAe<E o^ 

 several bii-ds, including those of the TetraoUrogallus, LiiA., of the Crax 

 Alectori Linn., and of the Platalea Leucorodia, Linn. He remarked 

 that the deviation from the simple form of a cylindrical tube passing di- 

 rectly from the larynx to t;he bronchice, -^hich is common to the greater 

 number of birds, commences among the rasorial group, that of the Te- 

 trao Urogallus exhibiting one of its earliest stages. In this there is 

 rmerely an elongati^n^of the trachea%f\\ho\ii any marked fold, a portion 

 of that organ lying loose among the muscles and cellular substance of -■ 

 the neck. The deviation from the typical form increases and becomes 

 in Crax, and es^cially in JVumida, Linn., a distinct fo^d. Among the 

 Gxpllaiores it attains a yet higher degree of developement, particularly 

 in t\ieGruid(B. In Platalea if is formed by a strongly marked fold, 

 which, however, lies l^osfe in the cavity of the thorax, and is not attached 





