inhabiting the seas of Great Britain and Ireland. 345 



Turbo arenarius, Dillw. ii. p. 839. 



Rissoa arenaria, Br. 12. pi. 9. fig. 12. 



Cingula decussata, Thorpe, 43. 



Odostomia pellucida, Wood, Crag. Moll, part 1. p. 86. tab. 9. 

 fig. 4 a-b ? 



Sandwich (Boys). Pembrokeshire coast (Adams). SalcombBay 

 (Mont.). Western coasts and Dublin Bay (Turton). Exmouth ; 

 Bantry Bay ; Oban ; Lerwick Sound, and five miles east of Lerwick, 

 in forty fathoms. West coast of Scotland ; Arran Isle, co. Galway 

 (Mr. Barlee). 



A local and rare species. 



22. Odostomia fenestrata. 



Testa conico-cylindracea, solidula, sordide albescens ; anfractus 

 8, complanati, turriti et sensiin decrescentes, longitudinaliter no- 

 tati 16 obliquis costellis qui 3 majoribus et 1 minore costellis 

 transversim decussati sunt, duobus superioribus cseteros anfractus 

 subtus circumornantibus, basi testae glabro; apex prominulus; 

 sutura profunda; apertura ovalis, \ testae subaequans, subtus 

 parum effusa aut subcanaliculata ; peristoma aliquantulum incras- 

 satum ad columellam; umbilicus nullus. Long, fere ^-, lat. ■£$ unc. 



Dredged by Mr. MacAndrew off Dartmouth, and since by Dr. Bat- 

 tersby at Torquay. 



A local species. 



It may possibly be the Pyramis spirolinus of Brown (15. pi. 9. 

 fig. 66), but he describes that shell as having numerous spiral 

 striae instead of the four ribs at the base of each whorl. 



This species was first noticed and named by Professor Edward 

 Forbes at the meeting of the British Association in 1846, but no 

 account of it appears in their reports. 



5 23. Odostomia excavata. 



Rissoa excavata, Phil. vol. i. p. 154. tab. 10. fig. 6. 



Rissoa Harveyi, Thomps. in Ann. Nat. Hist. vol. v. (1840), p. 97. 

 pi. 2. fig. 11. 



Parthenia turrita (Metcalfe), Thorpe, 44. 



Odostomia pupa, Wood, Crag Mollusca, part 1. p. 86. tab. 9. 

 fig. 5 a-b. 



Mill town Malbay, co. Clare (Mr. Harvey). Guernsey (Mr. Met- 

 calfe and Mr. Barlee). Lamlash Bay, Buteshire (Mr. Bean). Bur- 

 row Island; Arran Isle, co. Galway (Mr. Barlee). 



A local and rare species. 



~ 24. Odostomia clathrata. 



Testa cylindrica, subnitida, rufescenti-fusca, 20 longitudina- 

 libus subcurvis et complanatis costis instructa, costae interstitiis 



Ann. $ Mag. N. Hist. Ser. 2. Vol. ii. 24 



