﻿R I S S A. 



Plate. 



nbjecta, Watson XII. 



abyssicola, Forces- III. 



(iriivda, Risso . II. 



lu-iita, Desmarest II. 



<ic»;(j, Draiiarnand V. 



albida C. n. AdaM.o X. 



alhngo, Wa.fsun XII. 



Wderi, Jrffmj^ VI. 



».na,tm'A, 1 ) I'dparmi ikI VI. 



annidatii, Hunker XI. 



(ippriiximata, Brown IV. 



Xrtenms, Montnuisier IX. 



auranti.ica, Watsim XII. 



auriscalj)inin, 7j/)(»t^/(.< II. 



au.stralis, Saivcrhy. .. . XIII. 



Harleei (Odost.), OZdrAv- VI. 



Harleei, Jeffreys III. 



Beanii, HanUij IV. 



Browniana, D'Orbigm/ XI. 



Bruguieri, Vayrandeaii, I. 



Bryerea, Montagu I. 



Bureana, Sowerby X. 



offilata, A. Adeline II. 



calathisca, Mantayu I.-V. 



ralathus, Forhes. Hindeij V. 



Caledonica, Grosge X. 



canalicnlata, iScAwac/.: VII. 



(lanariensis, D'Orhiyin/ IX. 



cancellata, Reclnz III. 



caucellata, Costa IV. 



carinata, Costa II. 



castanea, Jeffreys XIII. 



Catesbyana, D'0/-?;/(/H//. X. 



Chesnellii, Jlf/f/i««c? X. 



civiex, Donovan IV. 



civiex, Linnfens I. 



cimicoides, Forbes III. 



cincta, A. Admns VIII. 



cingillns, 3f(m^a'7«. II. 



clande.'<t!,ii,, C. B. Adams XT. 



clathrata, yl. ^(?(i///.v IX. 



CI I nan III) is, Forhes V. 



concinna, A. Adams I 



covesicea., Manzoiii XIII. 



specif 



113 

 23 

 II 

 11 

 ■11 



111. 



■l'.> 

 .-.] 



35 

 84 



lOG 

 II 



1-23 



14 

 10 

 39 



8(3 

 50 

 82 

 22 

 32 

 16 

 120 



y4 



89 



71 

 15 



104 

 76 

 40 



En-one 



Plate. 



Corilea, B'Orbir/ny III. 



costata, Adams III. 



costulata, ^?rfer III. 



costnlata (Rissoina), Prase XIII. 



ci-assa, Angas VIII. 



cras.silabrum, Pease VII. 



orebrisulcata. Sowerby VI. 



cvenn\a,ta, Michaml FV. 



crispa, Watson.... XII. 



crystallina, Brown II. 



Cumingii. Eeeve I. 



cyclostnina, Recluz III. 



decussata, J/uh/'(;/m IX. 



deformis, Sowerby VIT. 



dentieulata, Risso IV. 



depicta, M<intagu IX. 



Deshayesiana, RerXuz VII. 



diaphana, Alder XIII. 



D'Orbignyana, A . Adams I. 



Enlimoides XI. 



Europrea, Risso I. 



e.rigiia, WichtLuA III. 



eximia, Jeffreys VI. 



fasciata, Angas XIII. 



fimbriata, So«ufir&ie V. 



Jirmata, C. B. Adams XI. 



flexuo.sa, Gould XI. 



fortis, C. B. Adams IV. 



Fremiiivillea, Risso I. 



fulgida, Adams VI. 



fnlva, Michaud VI. 



gentilissiana, Crosse V. 



gibbfrnla, Wat.-'on XII. 



ylahraf a, lie ghev\e II. 



gracili.t, Macgillivray V. 



granidata, Philippi I. 



Grayana, Jejfc 7/s (Assim) XIII. 



Gnkonaj, CZflrfe XIII. 



(lueriniii ?) III. 



hyalina, Desmoulins IV. 



incerta, Souverbie V. 



iiiconspiona, Alder IV. 



ir\sig\\is. Ad. ^ Reeve VII. 



\\\<io\'it a,, Be.<hiiyes. V. 



0,1 t„ ?k,te I. fig. 1. 



121 



70 



32 

 107 



4 



2e 

 78 

 63 



1* 

 83 

 62 

 118 



119 



45 

 104 



44 

 115 

 19 



40 



