CONTENTS. 
PAGE 
MU EIS UNCER sere ict erty eee SPRY ns Sere awe saya aed ade) ve BYaLareS Stee 9 
ieee Generac haractersvor, the Molinscae. 382/050. ste ss ls bots o sleet ee 1] 
HEM UOPOR EAM WOL thet ATCA lenses cteiais cia sraicie and lebst clove dantahs cre ola epiaas 12 
Si peseaities ee Special Interests.) i.e bats « ole devise v's vole aiatee 13 
HVE COREA DEIGH MOISTEDULLONL non ae .ttietastate orgie) e venice sh cieseicicie'sin.o ohephieatabale: + 16 
NS ORG Sic alle DD ISELA DUPLO score ta enced ss creed a eanib Saale: « she sa cls sfeyevo are oalata 23 
Wieetustrictious tor Collecting, Mollusksiase. ccc ecrsie. 2 das bedi netes 25 
emp ectri(l. 9 PECLES yee Narre Serna ene eR lors S siete initial: © &: > «cameron 25 
Paresh water SPEClec meri, oer ere re Saisie, 6 Sf. \ha:24 wis era oars eeroemtane 27 
Be PEeSeLV ALON OL MGONECEOUS. + Ase. 6 oat cSt elses ce cic place ales areeltiee’s 29 
PSO Presenvd om Tor ANAtomiGal SCs. 08h. %,¢ 20 stds ni ewes deme : 3] 
Nie Econom ons ther NLOMUISCAL inc ou nelcta ts 2a: + cs o's) on ee sid aimaaeavele ees 33 
RPE Homers AE OS UNE Meret arene oui ros, aie NF ote Visio Arye) Ske 6) drakid Sa eheninl's) Auwtere, «-eVSieve | dele p Bhs) 
een UANT A FeaaAN ICR EMEM SME Loar cralsterctaye pats <x 2/8 a eiaseiel oeulere tie, oles eicgiole talib. 36 
ke Description of Species......... PRC, they sere faan sheet rane haf eWaClate ota 44 
eee CLASS CICGVPOU Aa rie/wrole sta) ecare ecieciae feeia a aile mers ss erboeNeyetataretiage 45 
Ogder PE CiONOMCSMIAGEA yO e)s. cle. o:ahs jessie evave efsinipie sin leb latele.e’e Gale wah 46 
Se pentamMy RIN ATAGAGEA i. cigs s crosdese' > olejeis gis 8s Hie aleve ejelwie 46 
Barmily Uniorides, 3.7.5 2).5-2 0. ces oc os EA Nt ME Se Ree 47 
OtdepelP lee siMACEA se <istave vleianics ese nia ovine wala wares mat elas 111 
Superfamily Cyrenacea..... i SS AE wu Sho RTRROMT “UxtN: 6. Niele a 111 
RATE tea PIE CELL CE s we ale al citiel ele woyateny eve alecareiaip]4is/2 malo 9) 918/je1ehd 111, 
