19 



LIST OF THE MOLLUSCA OF THE CLEVELAKD 

 DISTRICT. 



By the Rev. John Hawell, M.A., F.G.S. 



The following list makes no sort of claim to be exhaustive. 

 Its principal utility will be to form a foundation for future 

 investigation, and to act as a stimulus thereto. Of a large 

 proportion of my own observations I have kept no record, and I 

 have scrupulously refrained from recording anything here from 

 mere recollection. I have also omitted many records, whether 

 made by myself or by others, which I considered to be doubt- 

 ful. Of course I have made large use of D. Ferguson's 

 "Natural History of Redcar and its Neighbourhood" (1860). 

 I have gained some information for my purpose from Dixon 

 and Watson's " Descriptive Manual of British Land and 

 Fresh AVater Shells" (1858), and a little from Roberts' 

 " Natural History of Lofthouse." The pages of the " Journal 

 of Conchology," "The Naturalist" and "Science Gossip" 

 have also been consulted with advantage. No use could, 

 however, be made of some records in these and other publica- 

 tions, which simply mentioned molluscs as existing within a 

 certain distance of Middlesljrough, or on the Yorkshire Coast, 

 without noting whether or not they occurred in Cleveland. 

 Records made in the above-mentioned periodicals and elsewhere 

 by the Rev. AV. C. Hey and Mr. Baker Hudson have been 

 made use of, as well as lists furnished by Messrs. T. A. 

 Lofthouse, B. R. Lucas and M. L. Thompson. 



LoligO Forbesi, Steenstrup. Off Staithes (VT. Y. A^'eitch). 



Limax maximus, L. Inglel)y Greenhow (J. H.), Kildale 

 (J. H.), Kilton (B. Hudson). 



var. pallido-clorsaUs (Hudson). AVilton AA^'ood (B. H.). 



Limax einereo-nig-er, AVolf. Easby AVood (J. H.), Mul- 



grave AVood (W. D. Roebuck). 



Limax marg-inatUS, Aliill. (L. arborum, B.Ch.). Kildale 

 (B. H.), Kilton (B. IL), Saltburn (B. H.). 



Agriolimax agrestis, L. Ingleby Greenhow (J. IL), Kil- 

 dale (B. H.), ^Middlesbrough (T. A. Lofthouse), Saltburn 

 (B. H.), Mulgrave (AV. D. R.). Very common. 



Ag'riolimax Isevis, Mull. Saltburn (B. H.), Kilton (B. H.), 

 Mulgrave (AV. D. R.). 



