HELICELLA. 263 



v. pyramidella Jan. sabulosa Zgl. 



v. sulculata C. & J. spectabilis Zgl. 



rugosiuscula Mich. pyramidatoides Orb. 



v. vidua West. v. nova Paul, 



v. infulata Paul. v. depressa Bgt. 



v. conica Drap. v. tarentina Pfr., iv, 24. 



H. turritella Parr., iv, 27. H. apiculus Rm., iv, 29. 



/. remissa Parr. cumice Calc. 



H. verticillata Parr., iv, 27. H. numidica Moq., iv, 24. 



H. liebtruti Alb., iv, 28. v. sulliottii Poll. 



H. idalise Bgt., iv, 28. H. calcarata Ben., iv, 28. 



H. pyramidata Drp., iv, 23. H. schembrii Scac., iv, 28. 



agnata Zgl. sehombrii err. orig. 



arenaria Zgl. H. cucullus Mts., iv, 28. 



littoralis Zgl. H. inops Mouss., iv, 26. 



Insufficiently known species : H. crenulata MiilL, H. licodiensis 

 Cafici, H. pupilla Serv., H. eupyramis, spaellina, kelibiana, spsella, 

 zitoumica, madana, galactina, veneriana Let. & Bgt, H. tisemsinica, 

 mactanica, capuana, dyrrachiensis Bgt, H. apiculiformis Anc., H. 

 subnumidica (Bgt.) West., H. ogygiaca West. See also iv, p. 30. 



Section Cochlicella Risso, 1826. 



Cochlicella (Fer.) Risso, Hist. Nat. Eur., Merid. iv, p. 77. 

 MARTENS, in Alb., Die Hel., p. 117. Elisma LEACH, in Turton,Man. 

 L. and Fr.-W. Sh. Brit. Is., p. 84, 1831. Xeroacuta MONTS., Moll. 

 Terr. Is. adi. Sicil., 1892, p. 25, proposed for H. acuta, ventrosa. For 

 anat. see MOQ.-TAND., Moll. Fr., FISCHER, Journ. de Conch., 1856, 

 p. 121, SCHMIDT, Stylom., p. 41, Moss & PAULDEN, Manchester 

 Mic. Soc. Trans. 1892, p. 75. 



Shell perforated, with elongate, turrited spire, higher than wide ; 

 opaque and white, usually streaked or banded with brown or waxen ; 

 whorls rounded, at least the last one. Aperture oval, the lip simple 

 and acute, expanded toward the columellar insertion. Type H. 

 barbara L., pi. 68, fig. 29. 



Genitalia : penis of the usual form, the retractor inserted in an 

 obliquely truncated, cylindrical calcareous body at its apex (pi. 69 

 fig. 21), in which the long epiphallus terminates ; flagellum short. 

 Vagina without appendages ; but on the atrium there is a long or- 

 gan of unknown function, either a degenerate dart sack or an " ap- 



