344 Mr. J. G. JeiFreys on the recent species o/Odostomia 



Var. b. elongata ; costae pauciores et obliquiores ; denticulus 

 validior. 



Oxwich Bay near Swansea ; Cork Harbour. 



One of our most common species. 



The Turbo interstinctus of Adams (to wliom Montagu has re- 

 ferred) is described by him as " testa l(Evi quinque anfractibus, 

 costa tenui interstinctis ;" and I have little doubt that this species 

 is his Turbo canaliculatus. But his descriptions and figures are 

 too indistinct to justify my changing Montagues name. 



20. Odostomia indistinct a. 



Turbo turritus septem anfractibus strigatis, apertura ovali, Walk. 1 1 . 

 fig. 40 } 



Turbo indistinctus, Mont. Supp. 129 ; Turt. 215. 



Turritella truncata, Fl. 303. 



Chemnitzia terehellum. Ph. ii. 138. tab. 24. fig. 12. 



Pyramis indistinctus, Br. 14. pi. 9. fig. 47. 



Chemnitzia indistincta, Alder, Cat. 48. 



Chemnitzia curvicostata, Wood, Crag Mollusca, part 1. p. 79. 

 tab. 10. fig. l-l^ 



Ex mouth ; Tenby; Ban try Bay ; Cork Harbour ; Zetland, five miles 

 east of Lerwick, in forty fathoms. West coast of Scotland ; Birtabuy 

 Bay, CO. Galway (Mr. Barlee). 



Var. a. minor. 

 Rissoa Ballice, Thomps. Ann. Nat. Hist. v. 98. pi. 2. f. 9. 

 Youghal, Miss M. Ball (Thomps.). Oxwich Bay near Swansea. 



Var. b. spira elatiore. 

 Falmouth ; Weymouth ; Dublin Bay. 



A local species. 



1 am not quite satisfied that this species is distinct from the 

 last {inter stincta). The only distinguishing characters appear to 

 be its more cylindrical form and the absence of a tooth. It is 

 also a thinner shell. 



I do not know the Pyramis lacteus of Brown (p. 15. pi. 9. 

 fig. 58), unless his description was taken from a worn specimen of 

 this shell, as he describes the longitudinal ribs as being " not 

 very distinct.^' 



21. Odostomia pellucida. 



Turbo quatuor anfractibus, subumbilicatus, reticulatus, apertura ovali. 

 Walk. 14. fig. 52? 



Turbo pellucidus, Adams in Linn. Trans, vol. iii. p. ^Q. figs. 33, 34. 



Turbo decussatus, Mont. 322. tab. 12. fig. 4 ; Turt. 210 ; Fl. 299 ; 

 Thorpe, 169. 



Helix arenaria, Mat. and Rack, in Linn. Trans, viii. 214. 



