THE CONCHOLOGIST. 



Naturalist. 



April. 



Burrowing Molluscs. — B. Tonilin, B.A. 



Science Gossip. 



April. 

 The Colour and Banding in Land and 



Freshwater Shells: A Reply to Mr. 



Fryer.— J. W. Williams. 

 Pkysa acuta in Scotland. — W. D. Rae. 

 Dwarf var. of Helix Sylvatica. — C. P. 



Gloyne. 

 Local Conchological Society. 

 Class! ficatory Position of the Mollusca. 



P.Q.K. 



May. 



Mounting Shells. — S. Pace. 



A New Variety of Helix eautiana.—]. W. 



Williams. 

 Power of LiiniuridiV to resist cold.^W. A. 



Gain. 



June. 



The Shell Colouring of Non-Marine 



Mollusca.— W. M. Webb, F.L.S. 

 A partly scalarid specimen of H. aspcrsa, 



from West Kent.— J. W. Williams. 

 Ciassificatory Position of the Mollusca. 



J. W. Williams. 

 Mounting .Shells. — G. T. Staveley. 

 Local Conchological Societies. — G. T. 



Staveley. 



BIBLIOGRAPHY- continued. 



British Naturalist.— Mr. Cockerel!, (Bibliography, April), concludes 

 his useful review of Westerlund's work. Under the heading " Notes, 

 &c.," will be found a number of matters of interest to Conchologists. 

 Mr. C. F. Ancey is of opinion that H. dent out Ford, is synonymous 

 with H. cychstomata Leguillon, he also points out that Auctus 

 Pilsbiyi, Ford, is synonymous with B. capueira, Spix., var. laminifera 

 Ancey, and that Pilsbry's sub-genus Gonostomopsis, (for Helix 

 auridens, Rang.), is what he (Mr. Ancey) grouped under the name of 

 Clirysoiloit. It is a great pity authors do not exercise more care in 



■ these matters, before creating a lot of useless synonyms. 



In his May notes, Mr. Cockerell points out the change (mentioned 

 elsewhere in this number) re Lintn<va palustris var. nana, Ckll., 

 and also gives a description of Pupa coloradensis Ckll., and 

 P. ingersoUi Ancey, both mentioned in his " Preliminary Remarks 

 on the Molluscan Fauna of Colorado," Journ. of Conch., p. 60., 

 vol. vi., 1889. The record of a new species of Arion, found by Mr. 

 Cockerell, is extremely interesting. The description is as follows : — 

 ''A. anihigmis is perhaps only a variety or sub-species of 

 A. houro;uionati, from which it differs in its lack of keel or pale 

 dorsal line, and in the slightly yellowish tint of the sole, especially at 

 the sides. It is perhaps not unlikely that A. circumscriptus was 

 founded on A. ambigints, rather than hourgtiignati proper." The 

 specimens belong to the var. aniiorieana Poll., and a new var. is 

 described under the term sub-alhida Ckll. 



Journal of Conchology. — The most important contribution to this 

 number is Mr. Edgar A. Smith's Presidential address before the 

 Conchological Society, dealing with the nomenclature of various 

 genera. On the ground of priority Mr. .Smith contends that we 

 should use the term Viviparous instead of Paludina, I'itrea instead 

 of Zonitea, and Acicula for Acme. An interesting article is con- 

 tributed by Mr. W. A. Gain, on the food of certain molluscs, the 

 details of which seem to have been carefully worked out. The 

 Catalogue of the Library of the Conchological Society is also con- 

 tained in this number. 



Naturalist. — Mr. Tomlin contributes an interesting note on the bur- 

 rowing habits of 'Pes/acella inaugei, Hyalina nitidula, and Helix 

 poniaiia. 



Science Gossip. — An interesting discussion is to be found in the 

 May and June numbers on the Colouring of Land and Freshwater 

 Shells, which seems to be receiving some little attention at present. 



OBITUARY. 



PROF. JOSEPH LEIDV, M.D., LL.D. 

 \Ve regret to have to announce the death 

 of Professor Joseph Leidy, M.D., LL.D., 

 one of America's most eminent zoologists, 

 who died at his residence in Philadelphia, 

 on .April 30th, 1S91, at the ripe age of 67. 

 Although there is hardly any branch of 

 zoological literature to which Dr. Leidy has 

 not made most valuable additions, he is 

 perhaps better known in this country by 



his careful and extensive memoirs on verte- 

 brate paleontology and more especially to 

 conchologists, as the author of the chapter 

 on the anatomy of the mollusca in Binney's 

 " Terrestrial Mullusks " illustrated by his 

 fine series of anatomical drawings. \w 18S0 

 Dr. Leidy was elected President of the 

 Academy of Natural Sciences of Phila- 

 delphia, which position he continued to hold 

 until his death. He was one of the Lyell 

 Medallists of the Geological Society, and a 

 honorary member of numerous learned 

 societies throughout the world. 



