— I 12 



Pages 



Trochus (Margarita) rhina Watson 64 



— sp 64 



— striatus Linné 63 



— zizyphinus Linné 62 



Trophon clathratus 36 



— Dabneyi nov. sp. (pi. 11, fig. 7=, 7^, 7c) 36 



— Droueti nov. sp. (pi. 11, fig. i^", i^', i<:) 37 



— Gunneri G. O. Sars 37 



Truncatella atomus Philippi 45, 46 



TuRBINIDvE 61 



Turbo cancellatus da Costa 49 



— cimex Linné 48 



— cingillus Montagu 52 



— clathratulus /. Adams 56 



— costatus /. Adams 5i 



— lacteus Linné 60 



— neritoides Linné 44 



— nitidissimus Montagu 57 



• — obtusatus Linné 44 



— rudis Maton 44 



— rugosus Linné 62 



— subulatus Donovan 58 



— unidentatus Montagu 5g 



Turbonilla attenuata Jeffreys (non Monterosato) 61 



— coarctata nov. sp. (pi. iv, fig. 8=, 



8b, 8c) 61 



— compressa Jeff"reys 60 



— Guernei nov. sp. (pi. iv, fig. 6a, 6^, 



6c} 60 



— lactea Linné 60 



— magnifica Seguenza 60 



— micans Monterosato 61 



— paucistriata Jeffreys 60 



— unifasciata Forbes 60 



Tylodina citrina de Joannis 2 5 



Pages 



Umbonium sp 64 



Umbrellid^ 25 



ungulid.e 83 



Utriculus leucus Watson 21 



— oliviformis Watson 21 



VeNERIDjE 82 



Venus borealis Linné 85 



— (Ventricola) casina Linné 83 



— chione Linné 82 



— (Ventricola) effossa Bivona 83 



— minima Montagu 82 



— (Pasiphae) ovata Pennant 82 



— spinifera Montagu 85 



Vermetid^e 43 



Vermetus cristatus Biondi 43 



— (Dofania) triqueter Bivona 43 



Verticordia (Pecchiola) acuticostata Philippi.... 88 



— ( — ) insculpta Jeffreys 88 



— orbiculata Seguenja 83 



— (Pecchiola) tornala Jeffreys 88 



Verticordiid^ 88 



Voluta alba Turton (non Montagu] 19 



— cornicula Linné 3 1 



— mercatoria Linné 35 



— miliaria Linné 3o 



Volutharpa 32 



Volvaria alba Brown 2 3 



Williamia Gussonii O. G. Costa 19 



Xylophaga dorsalis Turton 85 



Yoldia striolata Brugnone 79 



