06 
Figures. Puates. 
232 
233 
234 
235 
236 
237 
238 
239 
240 
241 
24a 
242 
243 
244 
245 
287-91 
292-4 
295-7 
298 
299-300 
B01 
302 
303 
B04 
305-7 
3058-9 
310-13 
314-15 
316-17 
326-7 
328 
329-30 
19 
20 
13 
13 
13 
13 
13 
13 
13 
13 
14 
14 
14 
i4 
14 
14 
lt 
REFERENCE TO PLATES. 
SpPEcIrs. 
ZEolis papillosa, Linn..... oinlb Jol Bats efeyaele/siaiese aio loleXu(atetsyaye 
salmonscen Comihas nie ncccies chs ices cnwee 
Flabellina Bostoniensis, Couth...........ccccecccece 
FusbranchialisJOUNSE sc ceccctes cee cane “ 
PUA TAGUG ctloceieie nisteeieeies cetera 
HESLLAtas SUMP bee eae c..crecaclehicchecere awe 
Biche» A. Or Mntten ene -cloeree sek Oe : 
diversa, Couth....... BEE Ae Ie iets 
Wergipes despecta; Johnst 22.6. esceccusctaccccseee 
gymnota, Conth..... aie afb ielovaiainroi ata ote faleiave afeieieee 
Calliopwarfuscata,(Gids 2 snthecsecnoscousteecuece. 
Herm ma orieitia sAgans i. 0s2.ce. ose seamcaee onetanee 
Alderia Harvardiensis, Agass.............. Sopra acae 
Clelia fuscata, Gld............ adele Sava ral etee\ayale areata 
mornigdta, (GLC st clewersle 2h sinisioc sees ee nie Bec 
Eby siachlorotiea; AR Age. saielcie® <r.c vse eaielettercleni sais 
Hlysiellaccatulus: (Agasss tcsF. merce oe ce melee ence ww ee 
Gavolina itridentata,(Gmel. ees ons snes on cenmececeene 
DiacriatrispinOsa, Wess cree sass eeicewis Coeeiennciconte 
Chopyramidata, GIN Ds. cvies cel sol paltns «aves a okie cee 
Styliola vitrea, Verrill....... wiolal ats oleic era) dfeateremitieceres ote 
Psyehouglobnlosas angiscle icc slcisie's /nsieige wcntieiseiene oars 
Limacina helicina, G@m6lis sos .6..0 ose secs Goede aor 
Spinalis GowladisiShmls esses. 2.0 sine vee ceeeeec ne S555 
Alexandri, Verrill.......  jasbalele ctesctetereislaie rete 
Clione limacina, Phipps 
Pholas costata, Linn.......... raldte cia char syne ite plate ei etete (ete 
EPUDCATA, Say). iicicce lel eas as 
Dactylina Campechensis, Gmel............. Eisieteraysieisve 
Ainph seen crispatar, Win ai sca wterarereie's erste (oon otaaveree ates olele 
Martesia cuneiformis, Say........-.ecceceseecs SARTO 
Diplothyra Smithii, Tryon............. iaraeieiereinia(aiaretnie 
Rocellaria ovata, Sowb.......... Maietcletele c, olsiotewsiotare emt 
SHMPBOMIG, LEVON) fel. <i 01 wie, = ereIale Pale etaiets 
mepotaras EbAnley'. sic tclaeis loss nie ictclne omaieeee 
ThoMROn, “LMYO Des. \c)<ise. <5 eae wslnclele stele )eninieie 
Norvuagica, Spengl...........: fia alazsiaterotela s\Biayetee 
chlorotica, Gld....... ath-dicic bas Sistas arals Ne ale ohm hee 
VL O LEY A db NEA He ro Cltistarep oieic ie infero'« « alvenersiortsieaysiem Sie 
Periploma papyracea, Say........... siatale leita i aseiorate wets 
Siliquar costataissaivicwicc sce cae wt setelwe Sees csoe oe s5- 
Teyvoneia, hyalina yt COUtiy oieinc 6 vies ofeis.ovecnaviose ts iovetalarn 
arenosa, Miill.......... pice le roiatere cio mie eos totals 
Thracia myopsis, Beck.............. Soo Da Se ao cicis 
CMU BCAA IM IGE Ale ctcrcicies sinierie o sisiste nee lclceereieraie 
PANGdOra ePUIRENbA, SAY vectcle ce sess vi siswiewisieeiemaeca ne 
ThraciaConvadi- COUGH. xc citees 0 cece nets ooo asim sos 
Saxicawas arctica inher veces «icine tem aiierste poner 
Panopea Norvegica, Speng.............000% Bis siniaia “56 
Cyrtodaria siliqua, Chemn..... iis /<(niate\n\ofasateteisiaelefaitine 
Sulemiya POKES, MOCO. occa clsc icc wis «elie oem © 
WENN SLY sai ele Salv ctelels's slots ots ofan’ ave yw asa Bhat 
Myr trunctatas Ginns.. 01.00 ce ines as wisdie s\aieie'6isaiehete 
Panopza bitruneata, Conr.......... wielbisiginnte sie wyuiew's 
Mya arenaria, Linno............ » ole naiserviujule smiaisl.ate bate 
truneaia, Linn...... Gosone aictala attneiaterekte Aor 3 
Corbula cuntracta, Say........... Alsiereisieieinre Vea eeeses 
Nera pellucida, Stimp........... JUeiam wee wom awemaaen 
Soien viridis, Say........ SEGURO OD DU aee eiscieie sales. 
Busia Amortewmnn, \GOMLG sorerciccvsms persue eRe elmincicnre 
Siliquaria gibba, Spengl............ esecreeeeseccese 
divisa, (Spenglicscccweccsgs tet wean siPiaieisa,cla%s\s 
Siliquarcostata Says. /osjstec cies cd enews sicisteleieete inte ciate 
divisa ti Sponge cwicte cer ctvcinet cs se) cleib etn side ears 
Mactra solidissima, Chemn...........sccoesesssceens 
lateralis, Say.......... eat Riches Swine hieAle'aiteaais 
ovalis, Gould...... oe 00 ee 0.0 vices 060 cease ce baw 
fragilisy: Chem reic. scm ceen cnclossieh Rie. sleetiisiie 
Raeta canaliculata, Say..............008% saneiegn ashe ‘ 
LINGALA DAVisrccaccescemteyess SOP, 
Tellina alternata, Say..... w siu(albi She's! p'einis/ set awie a ai nieib'a 
POA AAV ict emare seater neon bekanmanke 
CQHOYO NSN cvs isis eieis Sie\s isis © ovewevseevccese 
Penta; SAY. cede nace 6 0.0868 w1w4,010/8.pi5'm einai ai yi6)n (a 
MAOUBRURS “VGERUN arc carcecinae sip earls = hiclhsteie 
AGS AY cee wy e's ee neieelee ese vevvn ee csuwele me 
