122 HULL SCIENTIFIC AND FIELD NATURALISTS CLUB. 



Hanley's "History of British Mollusca " (1853), but 

 apparently he did not publish a list. 



In 1844 Captain Thomas Brown included in his " Illus- 

 trations of the Recent Conchology of Great Britain," 

 records of three species from the neighbourhood of Hull. 

 These are Neritina Jlmnatilis, "in many of the slow- 

 running rivers, as the Humber ; " Dreissensia polymorpha, 

 " in many places in the canal between Manchester and 

 Hull ; " Unio rostrata ( = U. pictornm), " I found this 

 species in the canal near Hull." Needless to say, there 

 is no such canal, while the description of the Humber 

 suggests that Captain Brown never saw it. This record 

 of Unio pictorum is repeated by Forbes and Hanley to 

 justify their synonyms, and they also give the first reliable 

 record for the eastern division of the Riding, Cyclas 

 lacustris, " Hornsea," on the authority of H. Strickland, 

 who later contributed '■'■Helix ericetorum m. sinistrorsum, 

 Bridlington," to Jeffrey's British Conchology (1862-69). 



Since i860 the following lists relating wholly or in 

 part to the East Riding have been published : — 



S. W. North. — L. and F.W. Mollusca found near York. 

 Magazine of Natural History and Naturalist vol. i. 

 (i860), p. 139. This includes species which occur 

 within a radius of two or three miles, generally 

 without localities. 



W. C. Hey (Rev.). — Contributions to a better knowledge 

 of Yorks. L. and F.W. Mollusca. Journal of 

 Conchology vol. ii. (1879), pp. 310-314. 



J. D. Butterell. — (1) List of the L. and F.W. Mollusca 

 of Hull and Vicinity. Naturalist vol. iv. (1878-9), 

 pp. 70-75. (2) List of L and F.W. Mollusca found 

 at Hornsea, July, 1880. J. of C. vol iii. (1880-82), 

 pp. 136-7. (3) List of L. and F.W. Mollusca 

 observed in the neighbourhood of Beverley. J. of C. 

 vol. 3, pp. 289-296 



R. M. Christy. — L. and F.W. shells of the neighbour- 

 hood of York. Zoologist series 3, vol. v. (1881), 

 pp. 175-185, 242-249. 



J. S. Gibbons, M.D. — List of shells collected at Burling- 

 ton, Bempton, Speeton, and Flamborough Head, 

 Yorks. J. of C. vol. iii., p. 238. 



C. Reid. — Mollusca of Hornsea Mere in "Geology of 

 Holderness," 1885. 



