AI. 
duplica- 
tus. 
Descriptive Catalogue of the British Testacea. 175 
Testa 3, poll. longa, pellucida, alba. Anfractus striis üuiperosis longi- 
. tudinalibus, interstitiis delicatissime transversim. striatis, oculo armato 
solum conspiciendis.. Apertura suborbicularis, fere ovalis. (Montagu.) 
First noticed by Mr. Boys, at Sandwich. 
~ * 30 99* Tyrrili, proprie dicti. 
T. testa acuminata, glaberrima, anfractibus subglobosis. 
Montagu Test. Brit. p. 299. t. 12. f. 1. 
Hab tat in mari. 
. Testa 4. poll. longa, tenuis, pellucida, alba. Anfractus 9. Apertura sub- 
orbicularis, Spira acutissima. (Montagu.) 
A new and rare species, discovered by Mr. Montagu, 
in sand, from Falmouth Harbour. 
Nearly allied to T. unicus, but being perfectly 
smooth, it could not be placed in the subdivision of 
** Cancellati” 
T. testa turrita, anfractibus carinis duabus acutis. 
—.. Linn. Syst. Nat. p. 1239. n. 643. Linn. Gmel. p. 3607. 
Bonanni Recr. 3. t. 114.. 
Lister Conch. t. 591. f. 58.. 
Seb. Mus. 3. t. 56. f. 7, 8. 
Anim. Angl. t. 3. f... 
s D'Argens. Conch. t. 11. r G; 
ibd ii iiec 2 
| Pennant 1 Brit. Zool. 4, t. 81. f.. 112. 
|. Da Costa Brit. Conch. p. 110. t. 63 
—— Donovan Br ve 
rit. Shells, t. 112. 
Habitat in pelago, rarissima.. 
Testa 24 poll. longa, structura Soie m i er. crassior.. Coloralbus. 
Anfractuum anguli, seu costae tantum 2 s. 3, obtusiores. — (Linn.. 
Mus. Lud. Ulr. P. 662.) 
This species is described as British by Lister, who. 
observes that he more than once obtained it from fisher- 
men on the: Yorkshire coast. We have inserted it, 
» | & therefore, 
£ ret 
