1 86 CONIDiE. 



remote from the suture. Operculum ovate-pyriform. P. carinata, 

 Phil. (Iviii, 35). 



RAPHiTOMA, Bellardi. Fusiform, turriculated, spirally sculp- 

 tured ; canal short ; sinus very small. 22 sp. occur on the Dal- 

 matian coast alone, but the cancellated species may be more 

 properly referred to Clathurella. There are a number of Italian 

 tertiary species. P. ring ens ^ Bellardi (Iviii, 36). 



TARANis, Jeffrej^s. Shell minute, cancellated , whorls angulated, 

 slightly exserted at base, aperture pyriform, outer lip thin, simple, 

 sinus obsolete, canal short. No operculum. T. Morchii, Malm. 

 (Iviii, 37). 



THESBrA, Jeffreys. Shell thin, rather smooth, somewhat tumid, 

 with a short spire and irregulaily contorted apex, aperture 

 slightly expanded, the outer lip thin, with distinct sinus, canal 

 short, columella simple. No operculum. T.?iana,Loven (Iviii, 38). 



PLEUROTOMELLA, VcrriU. Shell somewhat turreted, apical 

 whorls smooth, others shouldered and ribbed, but with a smooth 

 concave band below the sutures ; outer lip very thin, sharp, with 

 a wide, deep sinus above. No operculum. Animal without eyes. 

 P. Packardii, Yerrill. N. Engl. Coast. 



BORSONiA, Bellardi. (Oligotoma, Bell.) Shell fusiform, with a 

 plication upon the middle of the columella. Miocene ; Europe. 

 P. prima^ Bellardi 'Iviii, 39). 



CORDIERA, Roualt. (Scobiuella, Conr. Aphanitoma, Bellardi.) 

 Shell fusiform, with two columellar plaits. This and the last 

 subgenus should probably be merged in one. Eocene, Miocene ; 

 Eur., America. P. Pyrenaica, Roualt. (Iviii, 40). 



Halta, Risso. 



Etym. — Halios^ marine. Syn. — Priamus, Beck. 



Distr. — H. Priamus, Lam. (Iviii, 41). Spain. 



Shell oblong-ovate, ventricose, thin, polished ; spire produced, 

 apex obtuse, papillary ; columella curved, truncate anteriorly ; 

 outer lip simple, thin, effuse, slightly sinuated near the fore-part. 

 No operculum. A single species occurs very rarely in collec- 

 tions, and was supposed to inhabit the Western Coast of Spain ; it 

 occurs in the Italian tertiary. Dr. P. Fischer has examined the 

 animal of this singular shell, and finds it to be related to Pleuro- 

 toma. Known to science for more than a century, the habitat of 

 Halia has remained unknown until quite i-ecently ; it is now cer- 

 tain that it lives off Cadiz, Spain. 



Family CONID^. 



Teeth subulate, in two series, on a tubular prolongation of the 

 retractile proboscis, with a bundle of sharp, subulate teeth at the 

 extremity. Head with a produced tubular veil ; tentacles subu- 

 late, eyes on bulgings or slight truncatures on the outer side of 



