174 
| tagy; ; and at Pembroke, by Mr. Adams. 
38. 
costatus. 
unicus. 
and Cornwall. 
Dr. Maros's and Mr. RAckzTT's 
Adams in Act. Soc. Linn. 8. p. 66. t. 13. f. 25, 26, 
Montagu Test. Brit. p. 312. 
Habitat in mari, radicibus algarum adheerens. 
Testa + poll. longa, glabra, pellucida, alba, sub epidermide brunnea. £n- 
fractus teretiores, superne leviter SS Sutura manifesta, Apex 
vix acutus. Apertura ovata, 
First found by Mr. Boys) and Amii in Test. Min. 
Rariora; rare in Shepey Island. Found plentifully at 
Plymouth and on the Devonshire coast, by Mr. Mon- 
1 
T. testa subturrita, alte UbUs costatis, apertura mar- 
gine sulcata. 
Walker Test. Min. Rar. fA 
Adams Microsc. t. 14. f. 20. 
Adams in Act. Soc. Linn. 3. p. 65. f. 19, 14. 
Montagu Test. Brit. p. 311. t. 10. f. 6. 
Pulteney in Hutch. Dorset. t. 19. f. 5. 
E Habitat in mari, ad littora, — 
Testa 4 poll. longa, solida, glabra, stlpallucida, DA Aifeactus fere dis- 
juncti, prominentes, costis paululum obliquis seu undulatis, validis, 
striis transversis, delicatissimis, numerosissimis, inter costas eviden- 
tioribus. Apex obtusior. Apertura fere orbicularis; margine sulcata, 
crassissima. 
Discovered by Mr. Boys, in Kent. Found also on 
the coasts of Pembrokeshire, Devonshire, Dorsetshire, 
+ 
T. testa acuminata, glaberrima, anfractibus teretibus, 
striatis, Montagu * Test. Brit. p p p. 299. T 12. x 
| Walker. Test. Min. Rar. f. 40. 
Adams Micr. y 14. f. 17. 
Halitatin mati, 
Testa 
