12 



Linn, names. Engl. names. Synon. $ Ref. Habitat. 



3 melanostoma thick-ribbed Br.Mus. u. 



4 tenue thin-coated M.Cab. 



5 coarctatum Roller 



6 Rudolphi purple-marked 



7 distortum misshapen 



8 Bulbus bulbous 



9 subrostratum channeled 



10 brevidentatum short-toothed 



Jl denticulatum small-toothed 



12 armatum single-spined 



13 tectum knob-whirled 



14 callosum thick-skinned 



15 Planaxis girdled 



16 Tankervillii Tankerville's Br.Mus. 



17 marginatum margined 



18 Strombiforme strombus-shaped 



19 fulgurans Lightning 



20 chlorostoma thick-lipped 



21 Terpsichore small spotted 



22 lineolatum slender lined 



23 roseum rose harp 



