Mollusca of Great Britain. 363 
sæpè duplici serie macularum insignita, spiraliter can- 
cellato-striata. Anfractus 5, ventricosi. Apertura or- 
biculata. Umbilicus foramine obliquo. Operculum soli- 
dum. 
Long, 0.6.— Diam. 0.4. 
Turbo reflexus. Linn. Syst. Nat. 1. p. 1238? 
Nerita elegans. Müll. Verm. 2. p.177. 
'Turbo elegans. Mont. Test. Brit.342. t.22. f. 7. Maton 
§ Rackett in Linn. Trans. 8. p. 167. Dillo. Cat. 2. 
p. 863. 
Cyclostoma elegans. Drap. Hist. des Moll. p. 32. t. 1. 
f.5—8. Lam. Hist. des Anim. sans Vert. 6. p.148. 
Not uncommon at the roots of fern and in the clefts of 
limestone rocks near Swansea. 
. TRUNCATUM. 
Animal pallidum: proboscide elongato. Tentacula brevia, 
parüm acuminata. Sustentaculum breve. Operculum 
fragile, arcuaté striatum. (Drap.) 
Testa elongato-cylindrica, glabra, fragilis, pallide lutescens. 
. Anfractus 4, suturà distinctà, subcrenatà. Apertura 
ovata. Umbilicus vix ullus. 
Long. 0.165.— Diam. 0.065. 
Turbo truncatus. Mont. Test. Brit. p. 300. t. 10. f. 7. 
. Cyclostoma truncatulum, £. et y. Drs, Hist. des Moll. 
p. 40. t.1.f.30,31, |. g e 
y 
of this I found a few specimens shined with the Cionella 
Acicula and other land-shells in some fine sand from Wey- 
mouth-bay, into which they were probably carried down 
by some freshwater stream. Mr. J. S. Miller showed me 
several 
