MARSHALL: ADDITIONS TO ' BRITISH CONCHOLOGY.' 381 



the Royal Dublin Society in 1890, forty miles off Achil 

 Head, Mayo, in 220 fathoms. 



Perhaps C, echinophora may yet be added to the 

 British List, as fragments were obtained in the 'Porcupine 

 cruise of 1869, in lat. 54" 15' N. long. 11'^ 9' W. 



The Museum specimen also appeared under the 

 generic title oi Morio Montfort (1810), following Fischer, 

 it being taken for granted that the latter had sufficient 

 reasons for adopting that name, as it has priority over 

 Cassidaiia Lam. (181 2) ; but ' Latreille used that name in 

 the same year, and as I believe with acceptance, for a 

 group of coleoptera' (Watson, 'Chal.' Rep.). As a matter 

 of fact, Morio is now in use among coleopterists, and is 

 therefore out of court for conchological purposes. 



Odostomia interstincta var. moulinsiana = O. {Pyrgu- 

 li/ia) ino7tIinsia'na Fischer. Described and figured in the 

 'Journal de Conchyliologie,' 1865, p. 215, pi. vi., fig. 9. 

 I know this variety from Torbay only, where it is occasion- 

 ally dredged. It is a well-marked variety, but hardly a 

 distinct species, and differs from the type chiefly in being 

 longer and more slender, with coarser sculpture and a 

 prominent tooth. It differs equally as much from the 

 var. terehellum, being less than half the size, narrower and 

 more tapering, with proportionately stronger sculpture. 

 My specimens have been compared with Dr. Fischer's 

 types from Arcachon, and they are identical. Dr. Jeffreys 

 could not have given sufficient examination or considera- 

 tion to this form, or I feel sure he would not have united 

 it with the var. terehellum, from which it differs in size, 

 shape, and sculpture. 



E. philippii var. tumidosa Marsh. (See 'J. of C for 

 October, 1890, and for October, 1893). I have submitted 

 specimens of this puzzling species to the Marquis de 

 Monterosato, and he pronounces them to be 'distinctively ' 



