to SOWERBV: MARINE SHELLS OF SOUTH AFRICA. 



A simple conical shell with an obtusely-keeled margin. 

 It somewhat resembles G. capensis, but is much more ele- 

 vately conical. 



Clanculus kraussi Philippi, 'Conch. Cab.,' p. 82, pi. 14, 

 fig. 14. Natal. 



Fissurella mutabilis Sowb. var. sagillata Reeve. — Sowb., 

 'Thes. Conch.,' vol. iii., pi. 239, fig. S3. 



Fissurella similis Sowb., 'Thes. Conch.,' vol. iii., |)1. 241, 

 fig. 143, p. 143. Durban (Captain Turton). 



Macrochisma compressa A. Adams. — Sowerby, 'Thes. 

 Conch.,' vol. iii., pi. 244, fig. 218. Captain Turton. 



Chiton lyratus Sowb., 'Conch. Illust.,' fig. 15. Port 

 Elizabeth. 



Cylindrobulla sculpta C. & H. Neville,' Journ. .Asiatic Soc.,' 

 Pt. 2, No. 2, 1869, p. 68, pi. 13, fig. 3. 



Volvatella laguncula Sowb., n. sp. 



Testa ovato-cylindracea, monbraiiacea, involuta, postice abriipte 

 contracta, hrevifer proditcta, aiitice rolinidatij : opertura 

 antice late ovata, postice siiiiiosa, aiigiistissiina, labro Je.xira 

 utrinque desinente, in medio iiijle.xo, sinistra leviter reflexo. 



Long. <5, diant. ji miliiin. 



Hah. Port Elizabeth. 



Unfortunately I have only the shell of this species, so 

 that it is impossible with certainty to establish its generic 

 position ; the form of the shell, however, leaves little room 

 for doubt that it is a true Volvatella. Compared with V. 

 cuniingii it is much smaller, less abruptly truncated and 

 produced posteriorly, and proportionately wider anteriorly; 

 it is also less cylindrical in form than V. cincta of Neville, 

 and shows no sign of the transverse bands characteristic of 

 that species. 



I.e.. \"1. vii.. .\].ril i3g4. 



