MARSHALL: ADDITIONS TO "BRITISH CONCHOLOGY." 127 



which accord with what their figure was drawn from, E. intermedia 

 var. ruhrotincta ; the largest specimens of E. gracilis do not exceed a 

 quarter-inch in length. No doubt the authors of " British Mollusca," 

 in describing what they called "the Clyde variety," knew what their 

 type-form was, but in their endeavour to choose a fine example for 

 their purpose they unfortunately adopted a different species. E. coma- 

 tulicola Graff (=^. beryllina Monts.) I consider a form of var. gracilis; 

 the shape of the mouth is certainly peculiar, but it is shared with other 

 forms (I have specimens both of the type and var. gracilis with the 

 same peculiarity), and it will be found that even in undoubted typical 

 specimens, gathered from the same locality, the formation of the 

 aperture in this species is individually variable. E. comatulicola is 

 recorded as being "abundant in the Gulf of Naples on Comatula 

 mediterranean^ (Graff). 



Var. monterosatoi (Monts., Conch, prof. Palermo, p. 14, as E. 

 monterosatoi). — New to Britain. Guernsey, 18 f. ; Scilly, 35 f. ; Caldy 

 Island ; Ban try Bay ; Portrush, 20 f. ; Clyde mouth, 18 f. "A small 

 form, rather solid, glossy, some of the whorls slightly flexuous ; from 

 Palermo, Naples, and Soulac " (Monterosato). I do not consider this 

 more than an extreme form of E. philippii, as I have intermediate 

 specimens from Guernsey and Scilly, and I can find no perceptible 

 difference in the apex or mouth. It differs from E. philippii in being 

 almost straight, proportionally broader at the base, and more conical, 

 with the spire shorter and the last whorl larger, though there are 

 several forms of it ; the British one is like a stumpy var. gracilis 

 nearest the form called E. comatulicola Graff, mentioned above. 



E. antiflexa {=E. philippii var. exilis) Monts., which I do not 

 regard as more than a dwarf form of E. philippii, occurs at Guernsey, 

 Scilly, the Land's End, and the west of Ireland ; while his E. devians 

 (a good variety) was dredged on the Channel slope in the " Porcu- 

 pine" Expedition of 1870, in 690 f This latter has the combined 

 characters of the type and var. gracilis — large and coarse, flexuous, 

 with a coarse and blunted apex. 



E. perminima Jefifr. — I have a shell from off the Menavawr, in the 

 Scilly Islands, which I ascribe to this species, though with some doubt, 

 as Gwyn Jeffreys has not made his diagnosis clear. It has all the 

 characters given by the author to E. perminima, except that it is some- 

 what larger ; but it does not, any more than his short description, 

 agree with his figure. Not only do I believe that figure to be incor- 

 rectly drawn, but the dimensions given (o'o5 in. by 003) would not 

 suit a shell "proportionately narrower" than E. philippii, nor corre- 

 spond to the proportions of his figure. My shell is o'o8 in. by 0*03, 

 and for the present I must allocate it to this species. (See also 

 /. Conch., vol. 7, p. 256, 1893). 



