Mr. Jeffreys on British Mollusca. 129 



0. acuta, iii. 269. Mr. M 'Andrew has taken this species in Nor- 

 way with O. insculpta. 



O. plicata, iii. 271. Guernsey. 



O. Eulimoides, iii. 273. A comparison of fresh specimens just 

 received from Mr. Barlee, of what I considered at first a distinct 

 species, and named O. notata, has satisfied me that the latter is only 

 a variety of this Protean species. 



O. dubia, iii. 276. Guernsey. 



O. alba, iii. 278, var. gracilior et scalariformis. Guernsey, Skye, 

 and Zetland (Mr. Barlee & /. G. J.). 



O. cylindrica, iii. 287. Torbay. 



O. insculpta, iii. 289. Guernsey. 



O. Warrenii, iii. 292. With the last. 



O. truncatula, iii. 294. Adult specimens have a prominent and 

 sharp tooth on the columella ; but it is scarcely visible from the out- 

 side of the aperture. 



O. decussata, iii. 303. With the last. 



Eulimella Scillse, iii. 309. Torbay (Dr. Battersby). 



E. acicula, iii. 311. Guernsey (Dr. Lukis & J. G. J.). 



E. affinis, iii. 313. Torbay (Dr. Battersby). Mr. M'Andrew 

 has taken it in Norway with E. acicula. 



Otina otis, iii. 321. var. alba. Guernsey (Dr. Lukis). Dr. Gray 

 has very properly placed this genus in the family of Juriculadce, to 

 which it has conchological as well as malacological relations. 



Cerithiopsis tubercularis, iii. 365, (tuberculare) var. alba. Ply- 

 mouth (Mr. Barlee). 



C. Clarkii, iii. 368. Another (being the second) specimen of this 

 remarkable shell has occurred to me in dredged sand from Guernsey 

 with C. tubercularis, which is not uncommon there ; and it confirms 

 the suggestion of the authors of the ' British Mollusca,' that it might 

 prove to be a distinct species. Besides having only two rows of 

 tubercles, the volutions are scalariform, and the suture is much deeper 

 than in C. tubercularis. 



C. pulchella, n. s. PI. V. fig. 8 a-c. 



Testa cylindrica, solidula, rufescente, costis longitudinalibus 18-20, 

 transversis 4, cancellata, quarum 2 mediae longinque prominent et 

 infima carinam simulat, ad juncturam tuberculos efformantibus ; 

 anfractibus 7, convexis, ultimo reliquos subsequante ; sutura pro- 

 funda ; apertura ovata ; canali brevissimo ; operculo membranaceo ; 

 long, -j^, lat. -Jj unc. 



Falmouth, Plymouth, and Guernsey ; but rare. Although the 

 C. tubercularis is very variable in size, this species has a peculiar 

 aspect, which is unmistakeable for that of any variety of the last- 

 named species. Specimens of that species, of the same size as C. 

 pulchella, have no less than twelve volutions ; and the cancellations 

 are invariably closer, and the transverse rows of tubercles equally 

 prominent. 



Murex rudis. Fusus rudis, Phil. ii. 180. t. xxv. f. 30. A single 



