360 Mr. A. Bell on the Crag-Fauna. 



^Scalaria co7nmunis?, ham. R. C. Waldringfield. 



^Menestho britanmca, A. Bell, n. sp. Shell slender, graceful, 

 elongated ; apex styliform and turned towards one side ; 

 wliorls 8-9, slightly channelled at the top, and flatly con- 

 vex, the last four diminishing rapidly ; mouth entire, an- 

 gulated above, broad below ; pillar curved, suture deep ; 

 sculptm-e finely striated (under a lensj longitudinally. 

 Long. -jSg- inch, lat. ~ inch. C. C. Sutton. 



* Jeffreysii^ A. Bell, n. sp. Shell short, broad, turreted, 



owing to the semiangulation of the upper part of the 

 whorls ; suture deep ; whorls 5-6, the last composing 

 three fifths of the entire shell ; mouth long and oval, more 

 so than in the foregoing species, and slightly patulated 

 below ; apex blunt ; sculpture, deeply incised spiral strife 

 passing over the lines of growth, which are well marked ; 

 umbilical chink very distinct. Long. \ inch, lat. -^V inch. 

 R. C. Walton-Naze. 



I have been able, by the kindness of Mr. Jeffreys (to 

 whom I respectfully dedicate the species), to collate the 

 above with an undescribed shell from the Greenland seas. 

 Hydrohia ^dva, var. subumhilicata. R. C vValton-Naze. 

 Rissoa striata^ Mont. Chil. ser. Aldeby. 



* Trochus hullatus, Philippi, En. Moll. Sic. t. 28. f. 8. I have 

 obtained two specimens, one decorticated (similar to the 

 shell figured in the Mon. Crag Moll. 1. 13. f. 4), from the 

 Coralline Crag, Gedgrave. Prof. Seguenza has sent me 

 a series of Philippi's Trochus in all stages of growth and 

 preservation ; and a close comparison of their sculpture and 

 form enable me to correlate the Italian and Crag shells. 

 mtllegranus, Wood, non Philippi. R. C. Walton- 

 Naze. 



multtgranus, Wood. C. C. Orford. 



^Emargmula elongata, Costa (Phil. En. Moll. Sic. t. 7. f. 13). 

 C. C. Gedgrave. 

 Capulus unguis^ Sow. (S. Wood, Mon. Crag Moll. t. 17. 

 f. 2 h). This appears to be a deep-water variety (?) of C. 

 hungaricus (if it is a variety). I have lately obtained it 

 from the Coralline Crag at Gedgrave and the Red Crag of 

 Waldringfield and Shottisham Creek. Mr. Wood men- 

 tions it from Sutton. I consider it to be a distinct species. 



^Brocchia sinuosa, Brocchi, Conch, foss. Subap. 1. 1. f. 1. C. C. 

 Gedgrave. This genus, established by Bronn, is in some 

 respects unsatisfactory ; but the constancy and position of 

 the folds, both in the Suffolk, Belgian, and Italian shells, 

 can hardly be the result of accident ; and the occurrence of 

 two other forms in the English Crag, equally distinct in 



