MARSHALL: ADDmONS TO "BRITISH CONCHOLOGY.*' 169 



ledged stealing various packets, the contents of which, he said, would 

 be found at the top of an old cupboard in his home, and on a detec- 

 tive making a search he discovered and rescued, from a miscellaneous 

 assortment of stolen property, this record example of 6". clathratula. 



A specimen of S. tortilis Wats, has been dredged by the Irish 

 Fishery Board in the Atlantic off Ireland, in 624-7 28f., and three 

 specimens of S. richardi Uautz. and de Boury in the same district in 

 325-66of 



CionisCUS unicus Mont. — Aldemey (Marquand) ! Lewis in the 

 Outer Hebrides (Simpson)! off Loch Ryan 25-28^, Kilbrannan Sound 



25f. 



Aclis ascaris Turt. — Off Loch Ryan 27f. 



A. supranitida S. Wood. — Alderney (Marquand) ! off Loch 

 Ryan 2 5f. 



A. walleri Jeff. — The animal of A. lualleri was described by 

 Gwyn Jeffreys in the Appendix to his fifth volume (p. 210). In a 

 foDt-note on the same page he wrote that " perhaps this specific name 

 ought classically to be iialleri" but this suggestion has not com- 

 mended itself to any subsequent writer. 



var. exigua G. O. Sars=var. iiiiiwr Jeff. — South-West Ireland 

 38-79f. (R.I.A. cruise). In a previous note I was mistaken in 

 referring this to var. minor Jeff., in consequence of the latter author 

 ambiguously citing var. exigua as a synonym of his var. minor in the 

 ' Lightning ' Report ; but as a matter of fact Jeffreys' var. minor is a 

 dwarf form of five or six whorls, while Sars' var. exigua is a slender 

 form of eight whorls. 



Pherusina Norman = Pherusa Jeffreys. — Canon Norman writes 

 me that in substituting Pherusina for Pherusa it had nothing to do 

 wiih Phcedusa Ad., and cites more than sufificient reasons for chang- 

 ing the name, thus : — 



Pherusa Rafinesque - - Mollusca, 1815. 

 Pherusa Leach - - - Crustacea, 18 15. 

 Pherusa Oken - - - Vermes, 18 15. 



Pherusa Lamarck - - - Polyps, t8i6. 

 Pherusa Koch _ . . Crustacea, 1834. 

 In a paper on the Mollusca of St. Malo,^ by MM. Dautzenberg and 

 Durouchoux, the authors proposed the generic name Marteliella for 

 Piienisa Clark, apjiarently overlooking the fact that Canon Norman 

 long ago emended the name to Pherusitia,- which, as pointed out by 

 Mr. Tomlin,^ has been published in this Journal in a list of British 



1 Feuille Jeunes Nat., igis. 



2 Mus. Norm., i38S, part iv. , p. i8. 



3 Joiirn. 0/ Conch., 1915, vol. 14, p. 2S7. 



