INDEX. 



Synonyms are pr 



'inted 



in italic*. The Roman numerals refer to the plates on 

 which the species are figured. 





PAGE 









PAGE 



Acila . .. 



19 



Area Ugerieneis 



47 



iEquipeeten ... 



186—197 



— Mailleana 







. 63 



Aiiomia 



27—31 



— marullenis 







... 38 



convexa 



29, v, 10 



— ■ nana 







62 



— laevigata 



29, v, 6— 9 



— obesa 







... 61 



papyracea 



31, v, 13— 16 



— Passyana 







... 47 



— ■ var. 



burivellensis ... 31 



— pholadiformis 







35 



— pseudoradiata 



27, 30, v, 1—3 



— radiata . . . 







. 42 



radiata 



27 



— Maulini ... 







... 35 



? transversa 



30, v, 12 



- Robinaldina 







52 



Area ... 



32—35 



— rotundata 







40 



- aptie?isis 



36 



— rotundita 







. 40 



— ■ Austeni ... 



37 



- Sanetse-Crucis 







. 34, vi, 6, 7 



— carinata 



45 



— securis . . . 







. 44 



— Carteroni 



33, vi, 4,5 



— subformosa 







56 



— Comueliana 



50 



— vendinensis 







... 41 



- cymodoce 



35 





— Dupiniana 



32, vi, 1—3 





- exaltata ... 



49 



Barbatia 35—37 



— fibrosa ... 



57 



— aptieusis 



35, 224, vi, 8, 9 



- Fittoni ... 



52 



Austeni 



37, vii, 1—3 



— Forbesi ... 



49 



Galliennei . . . 



41, 224, vii, 9 



— formosa ... 



56 



— G-einitzi 



42, vii, 10, 11 



- Gabrielis 



49 



Hugardiana 



40 



- Galliennei 



41 



marullensis ... 



38, vii, 4— 7 



— Geinitzi ... 



42 



— rotundata . . . 



4o. vii. 8 



— glabra 



57 



— vendinensis ... 



41 



- Guer anger i 



64 



Brachydontes ... 



101—103 



- Hugardiana 



40 



Gkterangeri 



101, x vii, 4, 5 



- isocard'utformis . . 



65 



Byssowrca marullensi 



5 





... 38 



