ae 
MIU DES) 5. we! 5 lets ite 
Sg ee a 
MOONBMNG ico. vale knees 
DT 
ESS So See CK Re 
OM ars os arrest <\ eles o Shae 
Nautilus . . 
Navicella.......... 
RNPERT A es we. 
PRIGAT Fee. aes cte 
Neritina .. 
Neritopsis..... 
Nucula.... 
va... 
Menta ews 
Orbicula . . 
Osteodesma........ 
Ostrea . 
EE i 
Pandora .... 
MEE 6a FE sl as 00g 
0 ES rene eee 
Parmophorus ...... 
Partula . 
MN Wr kocdooncs 
ECT CY Ta a Son yee ir 
Pectunculus. . 
ENIGMA 3 
Phasianella .. . 
INDEX OF GENERA. 
Page 
224 
PROUMOMINB see 6 
UONUS, Ae toads oN ee 
PHVAR geome Cease srs 
PUICODSS). Ae ae.tee cen tee 
Pinar 
Placnunay.« 602s 
Placunanomia......... 
Pleurotoma...... 
Phicatalacss 3) =o3<: 
Psammobia’. cn tar tsketa ee 
Pierocera.. 2 /s.iereeoerss 
Pillastray srt peer 
Papa, sole wotte ; 
Pupinia.s., 20 eee 
Purpuras4.:..:2'32! eer 
Pyramidella; .)..tnteeies ee 
Byrulas $35 oo ee Bavenceaeee 
Ranella7.j- Sere 
Breil «.: See 
Riss0a tesa nese 
Rostellaria ... 
Rotella...... 
Sanguinolaria ........ 
Saxicaya .. 
Sealaria..... 
PIPARRO URE. Sista kfc) te! b 
Sigaretus...... 
Siliquanias oes c's a: 
Siphonaria.. . 
