MARSHALL: ADDITIONS TO " P.RmSH CONCHOLOGY." I99 



Sars' discovery of E. philippii inside HolothiiricB, M. Graff has taken 

 Etilimce abundantly on the starfish Comatida mediterranean and Dr. 

 Boog Watson constantly on Echinus esculentns. 



Eulima intermedia, Cant. — A shell indicated and figured under 

 the name oi E.frielei, but imperfectly described/ appears to differ in no 

 particular from E. intermedia, or if it does the difference is not men- 

 tioned by its sponsor, nor is it apparent in the figures, or the text, or 

 the shell itself, which the owner sent me and asked for my " favour- 

 able " opinion, but, as I informed him, it is a not uncommon form of 

 that species. 



The preceding remarks largely apply to figures of a shell indicated 

 as E. pernula,' which unmistakably represent forms of E. intermedia 

 found not uncommonly among Guernsey and Scilly Eulimidce. 



The figures omit the only critical characteristic of the Eulimidce in 

 the absence of any other criterion — a microscopic enlargement of the 

 embryonic whorls, which should be minutely described and specially 

 figured. Mere outlines of the Eulimidce. are so especially capricious 

 and misleading as to be useless for scientific comparison. 



E. anceps, Marsh. — Living in the Mediterranean, and also a 

 fossil of Ficarazzi (Monterosato in litt.') Also Adventure Bank i2of. 

 (' Shearwater') ! and from the same district in gaf. (' Porcupine ') ! 



E. anceps has been figured,^ but the figure is no guide except as an 

 outline, while the apex should be blunt instead of pointed, and the 

 mouth larger proportionately. 



I am not altogether satisfied with this as a species. Remembering 

 how polymorphous and misleading the shell of E. intermedia fre- 

 quently appears to be, if it can occasionally put on a blunt apex and 

 a concave profile it might conceivably include my E. anceps, and a 

 few specimens from Guernsey certainly appear to connect the two. 



E. CUrva Monts. — Two excellent figures of this shell have been 

 published in the journal last quoted (figs, i and 6). 



E. philippii Weink. — The same journal also gives perfect figures 

 of the two forms of this species (figs. 3, 4) which I selected for the 

 writer at his request, to represent what I have already described as 

 the northern and southern forms.^ Fig. 3 is the southern form on the 

 British coasts, and fig. 4 the northern one. They are figured under 

 the name of E. incurva, Ren. 



var. gracilis F. & H. — Those who maintain that this is a 

 distinct species should have faith in their convictions and endeavour 

 to meet and confute the conclusions arrived at by competent 



1 Proc. Malac. Soc, 1895, vol. i., p. 266, pi. xvi., fig. 6. 



2 Proc. Malac. Soc, 1903, vol. v., p. 352, pi. .\iv., figs. 2, 10, 12. 



3 Proc. Malac. Soc, 1903, vol. v., p. 348, pi. xiv., fig. 11. 



4 Journ. 0/ Conch.., 1901, vol. 10, pp. 125-6. 



