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DA MARINE MOLLUSCS. 
Odostomia spiralis.—Salcombe. (Montagu.) 
* Odostomia interstinctaa—Devon. (Montagu.) 
* Odostomia insculpta.—Devon. (Montagu.) 
Odostomia unidentata.—(Turton and Kingston.) 
Scalaria clathrus——Thrown up. after storms. 
Uncommon. “ Wentle-trapp.” Taken alive in 
Torbay, by the Rev. H. F. Lyte. 
Scalaria 'Turtoni.—(Turton and Kingston.) 
Skenea depressa.—Shell sand. 
Skenea serpuloides.—Shell sand. 
Nerita littoralis—Abundant. 
Natica glaucina.—Not commmon. Sandy bays. 
Natica nitida.—Not common. 
Natica pallidula.—Common on sea-weeds at low 
water mark. 
Natica intricata.—(Turton and Kingston.) 
Trochus majus.—Common in deep water. 
Trochus Montacuti.—(Turton and Kingston.) 
Trochus umbilicatus.—Common on the coast, 
and in deep water. 
Trochus cinerarius.—Common on the coast. 
Trochus crassus.— Very common on rocks at low 
water. 
Trochus papillosus.—Rare. 
Trochus ziziphinus.—Common. 
Trochus. exasperatus.—Rare. I have not obtain- 
ed above a half dozen specimens of this shell. 
? Trochus striatus 
Trochus tumidus.—(Turton and Kingston. 
Tanthina communis.—* Storm shell.” Procured 
after storms. Found also on the north-west coast of 
Cornwall. (J. C. B.) 
Velutina levigata.—Deep water. 
* Velutina otis——Not uncommon on rocks at 
high water. May be procured on the rocks under 
Plymouth Hoe. (J. C. B.) 
* Velutina stylifera.—Torbay. (Turton.) 
Turbo mammillatus.—Scilly rocks. 
