LAND AND FBESHWATEM MOLLUSC A OF SUSSEX. i!09 



by Mr. Jenner on the Downs about Lewes, and by Mr. C. H. 

 Morris at Cliff Hill, Kanscombe, and at Eastbourne. 



Var. ornata, Picard. — The Eev. S. Spencer Pearce has sug- 

 gested that the conspicuous dark band which characterizes this 

 variety, causes it to be avoided by sheep. Lewes (T. S. Hillman) ; 

 locally common on the Downs near Lewes (J. H. A. Jenner) ; 

 Hastings, common (Hastings Philosophical Society) ; Heyshott 

 Down (E. W. S.). 



Var. alba, Picard. — Lewes (C. H. Morris) ; Eanscombe, near 

 Lewes (J. H. A. Jenner) ; near Little Common, Bexhill (Rev. 

 W. A. Shaw). 



Var. bizonalis, Moquin-Tandon. — Near Lewes (J. H. A. 

 Jenner). 



V&v.fulva, Moquin-Tandon. — Near Lewes (J. H. A. Jenner). 



Var. obliterata, Picard. — "Victoria Drive," near Eastbourne 

 (A. G. Stubbs); Kingley Vale, near Chichester (Rev. W. A. 

 Shaw). 



Var. gig axii, Charpentier (? H. heripensis, Mabille). — " Some 

 shells from the Downs about Lewes are perhaps the var. gigaxii " 

 (J. H. A. Jenner) ; occasionally in the Chichester district, where 

 the " species generally has a tendency to this form" (W. Jeffery). 



Var. subscalaris, Jeffreys. — Near Lewes (J. H. A. Jenner). 



Monst. sinistrorsum. — A full-grown specimen on the golf-links 

 at Lewes (C. H. Morris). 



H. heripensis, Mabille. (Plate III.)* — This species was first 

 recorded as British by Mr. A. W. Stelfox in Proc. Malacological 

 Society, March, 1912. It bears the same relation to H. caperata 

 that Vallonia excentrica does to V. pulchella, the chief distin- 

 guishing feature being the wide, deep, and excentric umbilicus 

 which exposes the coiling of the whorls. The Rev. C. E. Y. 



* Description of Plate III. — Line 1 : Three shells of Helicella 

 heripensis, Mabille, var. albicans, Kendall, and one (the extreme left) of 

 typical Helicella caperata, Montagu, to show the difference in the umbilicus. 

 Line 2 : Four shells of typical Helicella lierijiensis. Line 3 : Four shells of 

 Helicella car tusiana, Muller. Line 4; Four* shells of Helicodonta obvoluta, 

 Miiller ; the second on the left shows the white epiphragm which covers the 

 mouth of the shell during hybernation. Bottom line : at the extreme left a 

 typical shell of Helicigona lapicida, L. ; adjacent is the var. ecarinata 

 subvar. subangulata, Pascal ; to the right are two scalarid shells, monst. 

 scalare subvar. subscalaris, Grateloup. All natural size, 



