INDEX TO THE GENERA, Wc. 
Ncalariasiissscs Badal csaraaatuusteressees 
Scrobicularia, 
Sepia, . 
Sepiola, 
Sidnyum, 
Skenea, 
Sole eno ene esecauiekec mentee 
Stylifer, 
Succinea, ....... Bee ecau a Goes: tea 127 
B\IGIOSTINE) ccodoseasocnododsaneeo0seo0 184 
iellimavpe secon. cosece sees ooses tua ween 182 
Merebratulases mec s oor 168 
MRCPE COM er eee aa Aess cots ace ease 195 
MITA Claaneet eee kane ote cnn, eas eleeace 191 
MTiCHOLLOPISsesnaceecentiecrescccessoets 160 
AD EKO coodsonbabendcSbsadoooa0ade 
IDritOmigeweeert costae renee 
PYOCHUS i seceet cee ses sencesetuees 
Turbo v. Littorina. 
Miuarnitellasmearesensecscscesese siete 
MUrtOMlasmecdsceccosnesusince eee 
Win TOs Ee eens Vageldoaens 
WENO “oneasepooneccosscnon edo 
Welutimasprcsnsasectscecssecsesse 
WEBS Gospoboncosabssoccasenboo0n 
WertigOsrecccsccsrsccccecssansencee 
WiLEDIM a eels ecsces ness wees een scene 
Xtvlophagasweadesecssuccecceseiee 
VANE While dene raccdnceadeacne nace rion 
ABBREVIATIONS OF AUTHORS’ NAMES. 
Ald. and Hane., Alder and Hancock. 
Bouch. Chant., Bouchard Chantereaux. 
Brod., Broderip. 
Brug., Bruguiére. 
Chemn., Chemnitz. 
Cuy., Cuvier. 
Desh., Deshayes. 
Dillw., Dillwyn. 
Don., Donovan. 
D’Orb., D’Orbigny. 
Ewd. (M.), Milne Edwards. 
Fab., O. Fabricius. 
Fer., Férussac. 
Flem., Fleming. 
Forb. and Hanl., Forbes and Hanley. 
Gmel., Gmelin. 
Jeff., Jeffreys. 
Jolins., Jolinston. 
Lam., Lamark. 
Leuck., Leuckart. 
Lion., Linneeus. 
Macg., Macgillivray. 
Mich., Michaud. 
Mont., Montagu. 
Miill., Miller. 
Penn., Pennant. 
Phil., Philippi. 
Pult., Pulteney. 
Sow., Sowerby. 
Thomp., Thompson. 
Turt., Turton. 
VOL. I. He 
