338 REPORT— 1864. 



latter word that SUlifer is derived. Whetlier it is correct to form a generic 

 name with an adjective may be very questionable ; but use has sanctioned 

 it in the present instance, as well as in Spirifer, Stiliger, Lohiger, lantliiiw, 

 Vitrina, and many other such names of general acceptation. 



According to some purists, the specific name given by the discoverer, if 

 subsequently adopted as generic, ought to be retaiaed ; so that the Euro- 

 pean species would be Stilifer stUifer. Precedents are not wanting for such 

 a reduplication of the name under similar circumstances, e. g. Volva volva, 

 Tv/rricula turricida, &g. But it would be very inconvenient to alter the 

 specific name Turtoni, which is so familiar to aU conchologists, to say 

 nothing of the inelegance of this system of nomenclature, or of its being 

 contrary to one of the rules recommended by a committee of the British 

 Association, 



This specific name has been spelt, too, in diiferent ways. "We have 

 Oaleomma Turtoni, Scalaria Turtonts, and not only Stilifer Turtoni of 

 Broderip, but S. Turtonii of Lovcn. The termination of the proper name from 

 which aU these originated is a Greek, and not a Latin, form ; and if it is to 

 be so declined, the genitive would be -is, with the penultimate syllable short, 

 as ActcBon, Actceonis; Alcmceon, Alcmceonis, &c.: so Turton, Turtonis. But 

 if we Latinize the name by adding us to it, the genitive would be i: 

 Turtonus, Turtoni ; just as Galen was Galenus-i in the works of ancient 

 authors. I must offer an apology for this pedantic explanation, although it 

 may be well to have the name in question uniformly spelt. 



The following are all the known species of Stilifer, with such particulars 

 of their geographical distribution and habits as I have been able to collect. 



A. Spire short. 

 1. Stilifer Turtoni, Broderip. 



Synonyms : Phasianella stylifera, Turton. 



Stylifer glohosiis, Johnston (1841). 

 S. adericola, Brown (1844). 

 -S". stylifera, Hanley (1844). 

 8. Turtonii, Lov^n (1846). 



Habitat. On Ei-hinus esculentus, E. mxatilis, E. pictus (Norman, MS.), and 

 E. BrohacMcnsis, in from 20 to 80 fathoms, Bx-itish and Scandinavian Seas. 



This being local, and more especially the subject of the present paper, 

 some further details of its distribution may be desirable. 



British Isles. — Torbay, on Echinus esculentus, L. {E. sphcera, Miill.) : 

 Turton. Berwick, on E. esculentus : Johnston. Northumberland and Dur- 

 ham, on E. pictus : Alder, Howse, and Brady. Cork : Humphreys. Ply- 

 mouth, on E. saxatilis : Stewart, Bate, and J. G. J. Shetland, on E, Dr'6~ 

 bachiensis, Miill. (E. neglecfus, Lam.): J. G. J. 



(N.B. Although most Scandinavian naturalists consider the Echinus neg- 

 lectus of Lamarck to be the same species as the E. Drobacliiensis of MiiUer's 

 Prodromus to the ' Zoologia Danica,' it may be doubted whether the latter 

 species is noo the E. Flemingii of Ball. Miiller's description is "hemir- 

 sphsericus, pallidus, spinis longis, albis," which seems to agree better with 

 E. Flemingii than with E. neglectus.) 



The shell described bj Professor Macgillivray, in his ' Molluscous Animals 

 of Aberdeen, Kincardine, and Banff,' as Stylina stylifera, and stated to have 

 been found by one of his pupUs " adhering to an Actinia brought up by the 

 lines," was the young of a common West Indian laud shell belonging to the 

 Oyclophoridce. The habitat alone might have induced a suspicion that this 



