249 — Dr. Maron’s and Mr. RAckETT'S 
‘ei 
Adams in Act. Soc. Linn. 3. p. 254. S. sulcata. 
© Donovan Brit. Shells, t. YOO: ^ 
Malla Test. Brit. p. 500. 
Habitat in mari, super lapides et testas, - 
— Teste magnitudine seminis coriandri confertze, soils sed irregulares, 
- (Linn.); albze, opacze, subumbilicatze, Mtem: poll. 
ui Round by: Mr. gebe. as xen eoe een 
5. : 
hetero- S. beta tereti, spirali; anfractibus 2 ugs s sats, cone 
rupe ASA eee 
Montagu Test. Brit. p. 503. 
Habitat in mari, testaceis et schisto adlizerens. 
Testa precedenti affinis, sed. duplo minor; sordidé alba, sulcis minus pro- 
fundis, supra concava ;. anfractibus contrariis, usque ad apicem conspi- 
euis, cum præcedens umbilicum parvum habet. -dpertura orbiculata. 
Discovered by Mr. Montagu, in abundance, in. 
x Kingsbridge Bay, Devon:. 
carinata. S. testa regulari, spirali, anfractu exteriore -Suprà.cari- 
nato. Montagu Test. Brit. P- 502. 
Habitat inr ‘mari, testaceis adherens. - i 
Testa sordidé alba, opaca, medio concava, interdum pervia, s. OUT du- 
plo minor, a quad ignoscitur anfractu: to, veluti in S. tri- 
queira. Testa semper en SE pode interiores incon- 
spicui.. Apertura orbicularis. (Montagu.) | 
Discovered by Mr Montagu on the “Devonshire 
coast, where it is not uncommon.. xe 
7. PE 
corrugata. S, testa regulari, spirali, transversim rugosa; umbilicata. 
-Montagu Test. Brit. p. 502.. ` 
Habitat in mari, NA adherens. M VEU 
be eie albas g 2 dilata 1 ad basin 
| 1o b. is. 
a ^ | 8, cornea, 
