Io8 JOURNAL OF CONCHOLOGY, VOL. I3, NO. 4, OCTOKER, I9IO. 



very little mud, the bottom being almost covered by broken pieces of 

 Morte slate. Though some time was spent, only this species was 

 taken, and but two specimens of it, one of which was alive and con- 

 tained seventeen young shells. The only other locality where I have 

 found the species is Damage, about one mile off, and there the shell 

 is distinctly the variety ryckhoiti Norm., whereas here the shells 

 are larger and flatter with less marked caliculation. They measure 

 9 "5 mm. in breadth and 8 mm. in length. 



*Pisidium subtruncatum Malm.— Lee. In a pond supplied by a 

 stream which is joined higher up at Borough by two smaller streams 

 previously mentioned. Only taken before at Saunton and Braunton. 

 Pisidium casertanum Poli. — Lee, pond. Three of the speci- 

 mens are of remarkable size, one measuring 7*25 mm. in breadth. 



*Pisidium pusillum (Gmelin). — Lee, pond. I have not pre- 

 viously found this species in the district, but Messrs. Beeston and 

 Wright state that it is common at Braunton (J. of Conch. ^ vol. xi., 

 1904, p. 80.). 



The Dispersal of Shells by Insects. — Cases of dispersal have been recorded 

 fairly frequently with freshwater shells, but records of observations are rare in the 

 case of land mollusca. It is, therefore, of some interest to be able to report the ab- 

 duction of a Cyclostotna elegans. While botanizing at the foot of Lord's Wood on 

 the Great Doward Hill, a little below Symond's Yat, my wife called my attention to 

 a huge bumble bee flying slowly and laboriously along a few feet above the ground, 

 obviously impeded by something it was carrying. On being netted and examined, 

 the bee proved to have one of its hind tarsi firmly wedged between the shell and 

 operculum of a full grown Cyclostoiiia elegans. Several attempts to release the leg 

 were unsuccessful, so I let the bee fly off again with its 'old man of the sea'. I do not 

 imagine that the Cyclostoma would be carried far enough away to lead to any new 

 result in colonization, but it shows in what unexpected ways shells may be 

 transported. — ^J. R. LE B. Tomlin {Nead be/ore the Society, June 8th, 1910). 



On Ethalia nevilli Sowerby. — This species was described by Mr. Sowerby 

 in the Ann. and Mag. N. H., 1905, p. 186. A recent examination of the type 

 in the British Museum and comparison with the type of ^Cyclostrema excavata 

 Carpenter established their identity. Mr. Edgar Smith considers that this species 

 would be best placed in Adeorbis. I have two specimens of it from Singapore 

 (coll. Archer). — J. K. le B. Tomlin {Read before the Society, Sept. 14, 1910). 



Crepidula fornicata and Petricola pholadiformis in the Medway. — These 

 two rather rare shells are found about six miles from Rochester and Sheerness. It 

 is somewhat curious that the time of their discovery almost coincides with the laying- 

 down of an oyster-bed in the same place eight years ago, but whether there is any 

 connexion between the two circumstances is for others to decide. They are found 

 in company with Cyprina islandica (this also seems rather a strange shell to find in 

 an estuary), Scrobictilaria plana and Nassa reticulata. — F. H. SiKES {Head before 

 the Society, March 9th, 1910). 

 I P.Z.S. 1856, p. 169. 



