18 MARINE SHELLS OF SOUTH AFRICA. 



elongata, angustiuscula, margine dextro paulo incrassato, hie 

 illic sparsim fusco maculate ; columella plicis 4, parviusculis 

 subrequalibus, leviter obliquis munita. 



Long. 65, lat. maj. 50 millim. ; apertura longa 60, in 

 medio lata 13. 



Hab. Port Elizabeth. 



This is quite a new form of Turbinella in which the an- 

 terior portion answering to the rostrum in the typical form 

 (T. pyrum] is quite half as broad as the widest part of the 

 shell, and the anterior part of the aperture is so little nar- 

 rower than the posterior, that it can scarcely be called a 

 canal. The four small, slightly oblique plaits are situated 

 about (or a little below) the middle of the columella. 



The type specimen, which is in very good preservation, 

 is in the collection recently presented to the Oxford Uni- 

 versity Museum by S. D. Bairstow, Esq. I have long had a 

 specimen of the species, but in such bad condition that I 

 would not venture to describe it. 



VOLUTA (CALLIPARA) BULLATA, Swainson, Thes. Conch, 

 vol. i. pi. 53, fig. 88. Broken specimens not uncommon at 

 Port Elizabeth. 



VOLUTA (VOLUTILITHES) ABYSSICOLA, Adorns & Reeve, 

 Voy. of Samarang, Moll. p. 25, pi. 7, fig. 6. Several full-sized 

 specimens of this remarkable form were taken in the voyage 

 of the ' Challenger,' which, with the young shell of the 

 ' Samarang,' are all at present known. 



VOLUTA AFRICANA, Reeve, P. Z. S. 1856, pi. 33, figs. 3, 4. 

 -Port Elizabeth (Bairstow). This rare species has not yet 

 been found in perfect condition. 



MITRA PICTA, Reeve, Conch. Icon, species 123. Port 

 Elizabeth. Dead shells pretty common. 



MITRA SIMPLEX, D unker, Zeitschr. fiir Malak. 1846, 

 p. 1 1 1 ; Krauss, Sudafr. Moll. p. 121, tab. 6, fig. 20. ? = .17. 

 patula, Eeeve, Conch. Icon. sp. 333. Port Elizabeth. 



MITRA CRATITIA, A, Adams, Proc. Zool. Soc. 1851 , p. 132 ; 

 Thes. Conch, vol. iv. pi. 24, fig. 545. Specimens in the 

 British Museum, said to be from South Africa. 



MITRA LATRUNCULARIA, Reere, Conch. Icon. sp. 166. 

 Worn specimens riot uncommon at Port Elizabeth. 



