68 JOURNAL OF CONCHOLOGY, VOL 9, NO. 3, JULY, 189S. 



Var. spirata Nardo. 1 — Off Portland Breakwater 1 1 f. This must 

 not be mistaken for a small conical form sometimes found attached to 

 pebbles named and figured by S. Wocd var. conica; the latter has not 

 the peculiar spiral twist which belongs to the var. spirata. 



Crepidula unguiformis Lm. —This American and Mediterranean 

 species is occasionally met with dead on our shores, having 

 presumably been imported with oysters from x\merica, and in one 

 instance living specimens have been taken in the Crouch River, 

 Essex. Several other American mollusca are in the same category. 



Haliotis tuberculata L. — Dr. Jeffreys' statement that this species 

 cl adheres to rocks like the limpet " is rather misleading. They 

 adhere to the under sides of large stones, never on the surface of 

 rocks like the limpet. My smallest specimen is a line in length, and 

 the animal had just finished, and had also closed up, its first 

 eyelet-hole. 



Scissurella crispata Flem. — Eigg Island, 20 f. ; Loch Boisdale, 

 20—50 f. ; Minch off Barra, 40 f. (Somerville and J. T. M.) ; Clyde, 

 18 f. ; Sutherlandshire ; West Orkneys, 45 f. Also Corea, 30 — 50 f . ; 

 ('Sylvia') ! 



Cyclostrema cutlerianum Clark. — 10 to 40 fathoms. Scilly 

 (Burkill and J. T. M.) ; Isle of Man (L. M. B. C) ! Herm ; Land's 

 End; Borough Island; Torbay ; Weymouth and Lulworth. The 

 sculpture is easily discernible with an ordinary lens. 



C. nitens Phil.— Scilly (Burkill and J. T. M.); Aberdeenshire; 

 Sutherlandshire ; Castle Bay, Barra ; West Orkneys, 45 f. 



Resembles the fry of Trochus helicinus, but may be recognised by 

 the aperture, which forms a complete peristome. Sowerby's fig. 23, 

 pi. xi., 2 is not C. nitens, as indexed, for the peristome is incomplete, 

 and the pillar lip is reflected, neither of which characters pertain to 

 C. nitens. It may probably have been meant for the male form of 

 Trochus helicinus, as it would just suit it, and is placed next to 

 the female form of that species. His fig. 22, pi. xiv., indexed as 

 C. nitens var. aider/] is the type form. Jeffreys' figures are useless for 

 reference ; they are globose instead of depressed, and striated instead 

 of smooth. Forbes and Hanley's (as Margarita pusilla) are better. 



Molieria levigata Jeffr. — " I had overlooked a specimen of this 

 little shell among my Shetland dredgings. The peristome and the 

 curved striae at the base show that it belongs to Molieria and not to 

 Cyclostrema." * It was also dredged by the 'Lightning' between the 



1 /. Conch., vol. 7, p. 249, 1S93. 



z Illuslrated Index of British Shells. 



3 Proc. Zool. Soc, March, 1883, p. 89 — 91. 



