Mr. T. Paine on the Hairy-armed Bat. 181 



which I have given as representations of the first stage. On 

 the third day after exclusion they had undergone no change ; 

 but on the fifth (I had no opportunity of examining them on 

 the fourth) several of them had moulted ; and on the sixth I 

 had the satisfaction to observe two of them in the very act of 

 shaking off their first envelope. The abdominal section was 

 cast in one piece, the cephalothorax in a second, and the ani- 

 mals were struggling to divest themselves of their antennae 

 and legs. I looked at this interesting operation for a consi- 

 derable time, and even made some attempts to assist them in 

 their endeavours, but they appeared to be exhausted by their 

 struggles, and in fact the following morning I found them dead. 

 I thus lost the whole of them before they underwent their se- 

 cond change ; however I was glad to find that these larvae 

 after their first metamorphosis had only one spine on the back 

 of the cephalothorax, as is represented in fig. 3. 



I have recently been making some observations upon 

 Thompson's "opossum shrimp" [My sis Fabricii, Leach). It 

 is certainly a very interesting animal, but I rarely find one 

 with a pouch, and only in one case have I yet found this 

 pouch to contain the young. 



I did intend, had I been able to go down to Newcastle, to 

 take with me my specimens of different woods as they have 

 been eaten by the Limnoria terebrans. I. hope now to be able 

 to show them to the naturalists at Birmingham. We are 

 repairing our pier by substituting new piles covered with iron 

 nails for those that have been destroyed by the ravages of that 

 animal. 



XXI. — Notes on the Hairy-armed Bat (Vespertilio Leisleri), 

 and on its occurrence in the Eastern part of Norfolk, By 

 Thomas Paine, Jun., Esq. 



[With a Plate.] 



When in Norwich a short time since I observed at a bird 

 stufFer's shop in St. Giles some specimens of a bat which was 

 unknown to me. Having procured one, it was found on ex- 

 amination to be the hairy-armed bat ( Vespertilio Leisleri) of 

 which a description and figure are given by Mr. Bell in his 

 ^ History of British Quadrupeds.^ There were eight others 



