INDEX. 



Note. — Tlie names of genera, sub-genera, species and varieties adopted in the Monograph, with 

 the essential page-references, are printed in thick type. The Roman numeral and the following 

 Arabic numerals in brackets indicate the plate and figures of those species and varieties which are 

 illustrated. 





PAGE 



Acavus hortensis 



... 16 



Acroloxus lacustris (I, 18) 



27,48 



Admete Couthouyi 



... 408 



— evalsa 



... 403 



— gracilenta (XXXIX, 51, 52) 



... 410 



— inflata 



... 411 



— Reedii 



... 409 



— serrata 



... 404 



— subangulosa 



... 409 



— undato-costata 



... 408 



— viridula (XXXIX, 42-47) 



... 406 



— var. abnormis 



... 408 



— var. Couthouyi (XXXIX, 



48,49) 



... 407 



— var. producta 



... 407 



var. undato-costata 



... 408 



Wouweri (XXXIX, 50) ... 



... 410 



Alectrion trivittata ... 



... 322 



Alipurpura (s.-g.) elegantula 



... 340 



Amblyacrum (s.-g.) harpula 



... 255 



Amycla (s.-g.), see Nassa ... 



... 328 



— rosacea 



... 57 



Anachis (s.-g.) sulcata 



... 307 



(s.-g.) sulculata 



... 308 



Ancilla Nysti (XII, 32, 33) 



... 52 



Ancillaria obsoleta ... 



... 52 



Ancylus lacustris 



... 27 



Anomalosipho Actoni (XV, 12) 



... 152 



altus (XV, 6) 



150, 152 



Anomalosipho Bellii (XV, 13) 

 Verkruzeni .. 



var. plicifera 



PAGE 



151 



149 



149 

 437 

 437 

 435 

 432 

 434 

 436 

 436 



- var. costellata (XV, 11) 151 

 — var. virgata (XV, 7-9) 151 



(XV, 10) 



Aporrhais Macandrese 



— pes-carbonis 



— pes-graculi 

 pes-pelicani (XLI, 26-29) 



var. minor (XLI, 30) 

 var. Serresianus ... 

 Serresianus (XLI, 33) ... 

 — var. Macandrese 



(XLI, 34) ... 437 



— speciosa ... ... ... 434 



Uttingerianus (XLI, 31, 32) 435 



Area diluvii ... ... ... ... ... 5 



Archimediella (s.-g.) bicarinata ... ... 456 



Astyris rosacea (XIII, 13, 14) ... 57 



-- (s.-g.) Holbollii 57 



— ■ (s.-g.) sulculata ... ... ... 308 



Atilia Borsoni ... ... ... 309 



Atractodon elegans (XXXVII, 9) 115, 364 



— var. inflata (XXXVII, 



10-13) 365 



Babylonella (s.-g.) gracilenta ... ... 410 



(s.-g.) Reedii 409 



— (s.-g.) subangulosa ... ... 409 



(s.-g.) Wouweri ... ... 410 



Bela ajqualis ... ... ... ... ... 300 



60 



