54 CATALOGUE OF THE MOLLUSCA 



When fresh, the shell is usually striated between the ribs on 

 the lower portion, a character that has been overlooked in de- 

 scriptions. 



4. R. INCONSPICUA, Alder, 



Bissoa inconspicua, Aid. in Ann. Nat. Hist. xiii. 323, t. 8, 

 f. 6, 7. 

 On corallines from deepish water at CuUercoats, rather rare. 

 Whitburn. — Mi\ R. Howse. 



5. R. puNCTURA, Mont. 



Turbo punctura, Mont. Test. Brit. 320, t. 12, f. 5. 

 On corallines from ten to twenty fathoms water, and in shell- 

 sand ; frequent. 



6. R. SEMISTRIATA, Mout. 



Turbo semistriatus, Mont. Test. Brit. Supp. 136. 

 Not uncommon in shell-sand, and occasionally found alive at 

 the roots of corallines from the fishing boats. 



7. R. iNTERRUPTA, Adams. 



Turbo interruptus, Mont. Test. Brit. 329, t. 20, f. 8. 

 On small sea-weeds in pools between tide-marks, abundant. 

 The shell is common in sand. 



8. R. CINGILLUS, M07lt. 



Turbo cingillus, Mont. Test. Brit. 328, t. 12, f. 7. 

 In shell-sand, rare. 



9. R. UNIFASCIATA, Mont. 



Turbo unifasciatus, Mont. Test. Brit. 327. 

 Rissoafulva, Mich. Desc. du Rissoa 15, f 17, 18. 

 Among sea-weeds, between tide-marks, at Whitley, rare. — 

 J. H. F. 



10. R. ULViE, Penn. 



Turbo tdva?, Mont. Test. Brit. 318. 

 In muddy estuaries, common. Holy Island, Budle Bay, Jar- 

 row Slake, mouth of the Tees, &c. 



11. R. VENTROSA, Mont. 



Turbo ventrosus, Mont. Test. Brit. 317, t. 12, f, 13. 



From sand and sea-weeds at CuUercoats, very rare. 



The Rissoa pidla, Brown Conch. Illust. 13, t. 8, f. 25, "found 

 on the sands at Holy Island," we have not been able to make 

 out ; from the figure it appears to be a distortion. 



