360 Miscellaneous. 



obtained under a stone on the peninsula of the castle of Pendennis, 

 near Falmouth, and which an examination with the def^cription and 

 a specimen from Rozel showed to belong to the same species. A 

 renewed search presented him on the following day with other spe- 

 cimens, two of which were in a living state, and their epidermis was 

 provided with the short, rigid, sparse hairs observable in the normal 

 state of the shell. At Pendennis the species is procured, as in Jer- 

 sey, under stones on an open down, and not in shady places among 

 nettles, as in Guernsey. It is worthy of notice that the geological 

 structure of the neighbourhood of the new habitat corresponds with 

 that of the Channel Islands and Brittany, and that the tract also 

 presents a botanical similarity, Tamarix Gallica being an abundant 

 product of the cliffs overhanging the sea. 



The island of Jersey may be recorded as another British station 

 for Helix Pisana, which is confined to so few localities in Cornwall, 

 Wales and Ireland. The species is abundant on thistles by the sea- 

 shore between St. Helier's and St. Aubin's. 



Falmouth, Cornwall, Oct. 18, 1848. W. H. Benson. 



P.S. Mr. Alder, to whom I forwarded an example, informs me 

 that a specimen of H. revelata was found by Mr. Bellamy near Me- 

 vagissey (between Falmouth and Plymouth), that it was exhibited 

 in 1841 at the Meeting of the British Association at Plymouth, and 

 was published in Mr. Couch's ' Cornish Fauna' ; also that Mr. W. P. 

 Cocks had in 1846 found a live shell at Pendennis, where Mr. Alder 

 in June 1847 searched without success. Including empty, crushed, 

 and broken shells, Mr. A. Benson has taken thirty specimens, of 

 which two, recently crushed with the enclosed animal, were left on 

 the ground, and nineteen were brought in alive. The largest speci- 

 mens are seven millimetres in greatest diameter (PfeifFer gives the 

 same measurement). My best Jersey specimen exceeds this size by 

 half a millimetre. 



Although I was mistaken in concluding from Pfeiffer's omission 

 of an English habitat that the animal had not been taken in this 

 country, yet its recent capture at Pendennis, where it is not confined 

 to a single spot, satisfactorily corroborates the evidence of its claim, 

 hitherto resting on two solitary specimens, to be considered a native 

 of England. W. H. B. 



Oct. 25, 1848. 



Colossal Bones of the Iguanodon. 



Dr. Mantell has recently obtained from the Wealden of the south- 

 east of England several portions of femora and tibiae of the Iguano- 

 don more colossal than any hitherto discovered. The shaft of a 

 thigh-bone is twenty-eight inches in circumference, exceeding by 

 several inches the largest in the British Museum, and requiring even 

 longer condyles than the gigantic distal extremity of a femur of the 

 Iguanodon in the possession of a collector at Hastings. The me- 

 dullary cavity is so capacious that the hand and arm might be thrust 

 into it. 



