160 - | Dr. Maton’s and Mr. Rac KETTS 
hS, 
tenebrosus. T. testa eubeonita, oba: anfractu primo ventri- 
| cosissimo. 
Montagu Test. Brit. p. 308. ———— Supplem. t. 20. f. 4. 
Pulteney in Hutch. Dorset. t. 18. f. 15. 
Halitat in mari, ad rupes. 
Testa diametro + poll. picea, intus purpurascente-brunnea. Anfractus 5 
ventricasiores, EN ceteros longitudine cere Labrum tenue. 
Apex obtusior. - 
First noticed by Mr. Montagu, who proposes it as 
— distinct from T. littoreus, but not without some doubt. 
Found in Kent, and on the Western coast; but not OR 
so common as T. littoreus. A x 
6. 
petreus. T. testa conica, acuta, apertura pyriformi. 
-~ Montagu Test. Brit. p. 403. 
PU: in Hutch. Dorset. t. 18. f. 13. 
Habitat in mari. 
gis vix $ poll. longa, $5 lata, purpureo-brunnea. Anfractus 5, minime 
(ES , rugis transversis obliteratis, pam pde $ teste lon- 
| Seales equans. Faux glabra, purpurea, 
Distinguitur a przcedentibus, quod apertura deflexa, magis oblonga, versus 
apicem acutior. Farietas albo vel rufo variegata. : 
This species was discovered by Mr. Montagu on the. 
South coast of Devon; he also found it at Swanwick, | 
in the Isle of Purbeck, Dorset. - 
T. 
Ziczac. T. testa subconica, acutiore, substriata; anfractu primo 
#.4.f.14. ad basin carinato. 
Lister Conch. t. 583. f. 38. 
Chemn. Conch. 5. t. 166. f. B. 
. B Chemn. Conch. 5. t. 166. f. 1600. | 
Linn. Gmel. p. 3587. Trochus Ticsc; i 
esta 1 poll. longa, 4 lata, glabra, alba, erubescens, aut ceerulea, lineis an- 
gulatis fuscis picta, €— 5—6 planiusculi, substriati lineis. de- 
g (o pressis, 
