GASTEROPODA. CAMBRIAN AND SILURIAN. 
PALZOZOIC. 
CAMBRIAN. LOWER SIL. UPPER SILURIAN. 
a k lal eeSisleal oleae 
Blalcle| |-lstziec@rRRirtsis 
SPECIES. REE S| .l2lelala Beles | Al EAalal REFERENCES. 
2) eres Ms Sales lSiSia|slale|= 
a] a) a) S/S) 8/8/2| a) S/5/5/2| S1 e182 
HISIAIS/4IAlSIAlele le le Sip lala 
Pleurotomaria (continued). 
— fissicarina ...... Phils soaeesraceves 060] (Soci aoe| Gad (ood acc Pail fveisl seul eee|loee|loee eeulteelieee (eee (cee| exon Geolewsurval vOlvusmpualnpagsis Gulla, toss 
— latifasciata .1.... ‘Coy ......... 560|fa09) eaalfen loan # [Pade de. valleea|eoelloas|ees|eee|eeallsee|) ME Coy; Sills Hossslreloep, 055) tert, tn Os 
— Llanvirnensis... Hicks.... ©. local eae) [ood [aod Q. J. Geol. Soc. vol. xxxi, p.188, t.11, f. 4. 
— lenticularis...... SOWisemnensescecs abel}s84| fsa lead boo Bod lene ood leat sesfece[evs]oes|oeefece]eee]eee| ede Raphistoma. 
— Mooréi...........+ RYdits Baneagesnor azole cleeel ese] eee 54) || lonellonal lone [Bocllonel Ispeltenallorellonal PSAs Certelbasterdy Vill Ge, Vib awh Amity ti 14, 
— quadristriata ... Phill. ........00 el beet Peal laces soe acd lécd|pod (eS5 seelocs[oeslece] ye [eee] eee|eee| Mem. Geol. Surv. vol. ii, pt. 1, p. 358, t.14, f. 4. 
— subrotundata ,,. Portl........ 668 (69) Han) }eeal see] [coal lad) nae bad Iso silleva|lova|loxe|lece|eclleoslleon|), eae Miurchisonia. 
— trochiformis ... Portl............. 504 Iese| eal loca lean mes Poel tes ee smallecclicedlacellece|eos|cellees{) Geole Rept. p-4r45 t.30, f.19, 
— turrita ......... EPOrEUataes sot ces 509) 666] fecal [bod (aoc) [ood loncl Noed Ise Peal(ees|Seclecalcallcccticcalees|| Wre@e Miurchisonia, 
m— DhUlGs.ciececssses RIC capennecorso eas) sed [sed focal aac 9 sd locd Ieee Q. J. Geol. Soc. vol. xv, p. 379, t. 13, £. 13. 
— undata ......... ISETIS © Se anconsaod| focal aed (a8 fase lood adel laca| lool foc * Sil. Syst. p. 619, t. 8, f.13; Siluria, t. 24, f. 6. 
PYRAMIDELLIDE. 
Polyphemopsis ...... Portlock, 1843 
Polyphemus ... Sowerby, 1840 }...|...|...]..Je.- acti aa! |boot Hes eellestallere | feate| es et fese| (eee pe EAE rat a 
Bulimella ...... Hall, 1848...... Sealteslccelaselees Be sacl lond Wed Bea ioe) (onal seal lage Ieod| (Gea iene brat Macrocheilus. 
Elongatus ...... Portlock......... non Kool dad heed fear peal teatltess | see 4] one bod food [ese [Sod lad loon 
HALIorIps. 
Raphistoma ...... Hall, 1847...... 
Sealites ......... Emmons, 1844.. 
Scalites (part) Conrad, 1843 ... HOLOSTOMATA. 
Helicotoma (part) Salter, 1856 
— equalis ......... GLE ircencoss cece Goo) (sed [bee face ae Spa Helped Pas 564 0001 (So Siluria, 2 ed. Foss. 37, f. 2. Helicotoma qualteriatus, 
Schloth, Nachtr. t.11, f. 3; ib. Goldf. Pet. Germ. t. 189, 
f.3. Euomph. pseudo-qualteriatus, Von Buch, 1830, 
Karst. Arch. p.156, t.158; His. Leth. Suec. t.11, f. 5. 
Raphistoma, Salt. Siluria, 4 ed. p.197, Foss. 40, f. 2. 
Raphistoma, (Zuom.) qualteriatus, Salt. Mem. Geol. Surv. 
vol. ii, pt.1, t.14, £. 7 (mon Schloth). 
— elliptica ......... FAAS. savseceseeee| eee} ees| eee|oenfene x * Trochus, Leth. Suec. t.11, f.1; ib. Portl. Geol. Rept. 
p. 414; t..3%, fo. . 
—= Iabiata.....csse00s J O00 SGOpERCOOLEG O56) asd een (oe) sac Pal ace (bod 58 B84) od [ood jaro Iodo| fae] Foud) jogs 
— lenticularis...... [SIC Gacctioaceoeo| }06o| ea leo lod loed tla Pac lece|eee{ece| Pf--e[eee]eee-.-| Zeochus, Sil. Syst. p. 642, t. 19, f. 11. Pleurotomaria, 
M‘Coy, Brit. Pal. Foss. p. 291. Scalites, Conrad. Ra- 
phistoma, Salt. Siluria, 4 ed. t. 10, f.10. 
— PALVA ...ceeseeeee SHAUL. seccacsesve 5a [6084 nos] load] Ibo 504 h4l|nod [coe secfecclece{ece]oes]eeefeee{eee] Pal. New York, vol. i, p. 30, t.6, f.3, var. of 2. planistria. 
— qualteriatus ... Salt. wee. G60] ood leap loos Je c0|[orl/ocd Jeo sesfees]ecefees]oeefeee]eeefee.] Vide Raphistoma equalis, 
Emmons, 1844 
ISECIETES -eeepcconcee { \ 64) [seo d0|feoel foo lace) kia 7 i 
v Conrad ies Vide Raphistoma. 
Schizostoma ......... BrOnn, 1835 eos| vel veel (coe|ece eee Real swalese | sec saclocs|seclessfese[ece{eee{ee| ede Pleurotomaria. 
ERCP Case ievsseas se Adamson, 1757 .|...|...|.0e}eeefees Soclfooa)|ano| a6 secfeve|ces[ocelevs]es[ece/ooe| ede Loxonemas 
TURBINIDE. : 
Trochonema ...... Salter, 1859 ... ; 
Euomphalus (pars) Auctorum... sa ae ea 
— latifasciata Vide Pleurotomaria. 
Sh yratan.c..sscsees Euomphalus, Brit. Pal. Foss. p. 298, t.1 L, f. 23. 
— tricincta ......... Euomphalus, Synop. Sil. Foss. Irel. p.14, t-1, £.13. 
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