PALZOZOIC. CONCHIFERA. CAMBRIAN AND SILURIAN. 
CAMBRIAN. LOWER SIL. UPPER SILURIAN. 
Bal le SIS Eel s/elele|e|& 
eS 0 MIZIS Sl SsislolBlolsa 
Zlallel | Rie RErele 
SPECIES. sl2lalel iSlclals|sisielalelalsls REFERENCES. 
BlElslS{msislatssislslalelals|s 
H|S/HlETElEIS SIRISlelelelelsieia 
SIS)S/S/2/S/8lSl[siSlelelslSlals is 
RISIAS(SIA SIMS IE IE IE Sa Ie 
Ctenodonta (continued). 
——NEBVIS) Sisesescooes Stal grabaccooosc wesfoae[ece|oosPors wee[ ak [ooefees seelers[ere]ees|ecsters|eeeleee] Mueula, Sil. Syst. t. 22, f.1; ib. Siluria, 4 ed. t. 7, f. 3. 
— levata ............ Fas ccce coc lecallciont fooct Hem pale ad eer aR wes] Pl ice[ece[eeefere]eee[eee] Wecewla, Pal. New York, t. 34, f.1; ib. M‘Coy, Brit. Pal. 
Foss. p. 285, t.1 K, £. 4,5. 
— lingualis......... PAW rerondncesies sesfessfecsforePoes]ere|see{eeef ok [eee/eee|eeeleecfaesters[eee]e-.] Meewla, Mem. Geol. Surv. vol. ii, pt. 1, p. 367, t. 22, £. 6. 
— Menapiensis ... Hicks............ boo] Inco) ead’ be 2| (sacl ited lose s-|--+]ee]ere]----.-1 Q. J. Geol. Soc. vol. xxix, p. 47, t. 5, £.6,7. G. rotunda, 
Hicks, Cat. Camb. and Sil. Foss. Woodw. Mus. Cambr. p. 24. 
—— ODESA) cccscccnecse ING Me soperapccans sosfeoe|ene|ewefaes Ped eee ees fe vecfeee|ere]oee[oee| & |-++]---] Mem. Geol. Surv, Geol. Edinb. sheet 32, p. 141, t.2, f. 11,12. 
— obliqua ......... POE eaten cesses ol laAb|lonal lace eae Shel ls |lood aoe sesleesfess[oo[oeleelsee|ee.| rea, Geol. Rept. p. 429, t. 34, f.6. Arca cylindrica, id. 
| ib. p. 428, t. 34, f..9. Ctenodonta, Siluria, 4 ed. p. 196, 
Foss. 39, f. 6 
— ovals ............ SiO caccooacesee ses |.ce[eee[eeefoos 664505 ool Ba see|see|evo|loos[ese] ees] ---|--| Vade C. anglica, 
— poststriata ...... Emm. .... Pk feee[ooe[eeefeee|eee[eee]ees[oe] MVueulites, Hall, Pal. New York, t. 34, f.2; +. 82, f. 10: 
ib. M‘Coy, Brit. Pal. Foss. p. 286, t.1 K, f. 6. 
= font 5 copences Miinst. ......... 263 logo} oa} [G04 Heel aaa | 5.||d0t| foe sesfevsface[arsfoee|eee]-e-]ee.] Beitr. heft 3, t. 2, f.9 3 ib. M‘Coy, Synop. Sil. Foss. Irel. 
| p- 19. 
| — quadrata... va] eas fore bodl| ei fo6q Idan sesfeee|see[eee[oes]eee/eee[ee.| Aarea, Synop. Sil. Foss. Irel. p. 20, t. 2, f. 5. 
| — radiata ......... died kee Bag last oan Gas ses[eveloe-|eeulecc|ooe]ee-]--| LVeccula, Geol. Rept. p. 430, t. 36, f.11. 
— regularis..,...... Mead [a seoll 3 |lone Hoe a siillsce| oe) cen] tlhe] Panltenn|p A720 Ceol. Rept. (p5)42i7a1 ba 345 tenae 
— rhomboidea...... PRA. necececncecs 5c had} jan [ood jaa woa[ aca] eee]! |s0-]-e]lees]---[e--[oo]--e[-2.] Leula, Mem. Geol. Surv. vol. ii, pt. 1, p. 367, t. 22, £ 7. 
— rotunda ......... TiChS eacsacssees 264 Ios0| aaa) coc) loelloonl ood laa] /ec ses[eeefoee|seefecsfece[eee[eee| de Cteno. Menapiensis. 
— scitula............ SS Conyac nel (sae fone aoc fsoe bole 2 food eee ses[ees|oee|ees[eee[eee]sec]es.| Azea@, Synop. Sil. Foss. Irel. p. 20, t. 2, f. 6. 
— semitruneata ... Portl............. sce loaaleeallone Pectunculus, Geol. Rept. p. 429, t. 34, f. 7. 
— ‘subacuta ......... MS Coys T.ccnccce:| al el leer Nucula, Synop. Sil. Foss. Ivel. p.19, t. 2, f. 3. 
— subaqualis ...... IS{EI5 “anceceococe bec lees! ean) fone} Peel Ged leac| eal ao svilce|eeo[eca[Per|erdless|-es} Vede Arca subzequalis. 
— subeylindrica ... M‘Coy ......... 66H) A661 cos| lod |see wesfeve}eoePlek|ece|coo|eec|ece|see|ese|eee/ee<] LVeeula@, Synop. Sil. Foss. Irel. p.19, t. 2, f. 4. 
— subtruncata ... Portl............. see]ecefave|oeefoes Ba load ood (age Latlhecleess Vide C. transversa. 
e=tenlcatameese ssc Aer ee pea|loes| os foes hae! Pel lloet elle | eae eee|eee|) Waeth. Stee. Supp: 2. pagsta4ontaan, 
— thracioides ...... Salé. oc. sccesc0-|e0e|s0-| coo] >ee) ess ee bee * Mem. Geol. Surv. Geol. Edinb. sheet 32, p.14f, t. 2, f. 13. 
| — transversa ...... led Lee Arca, Geol. Rept. p. 428, t. 34, f. 4. ? A. subtruncata, id. 
| ib; p. 427, t. 34, £. 1. 
WALI COBM Meters os! NGL pr vesvevashos|(- sale aul cel ec sa P| laod [ono Nucula, Q. J. Geol. Soc. vol. x, p. 75. Ctenodonta, App. 
Mem. Geol. Surv. vol. iii, p. 345, woodeut, p.343, f.1. ? Wu- 
ARCADE. cula levata, M‘Coy, ib. Siluria, 4 ed. p.196, Foss. 39, f. 4. 
| Cucullella ......... M ‘Coy, 1851... 
| Gets Rouault, 1851. SIPHONIDA (INTEGROPALLIALIA). 
— angliea ......... bts 1 7s CeSeCORE EE Fl ee eal ees Hea aca eed ee bee vasece{oee]seefese[eee|eeefeee] Véde Redonia, 
i} 
— angulata......... BOY ercnicss sexe Pe lige os load hes Pealeealeecd eet seelecs[ose[ece[ers{ece]oee{ee-| Geol. Surv. Irel. Expl. sheet 135, 1860, p.13, f. 4. 
(ee antiqua ......... WOME Fesewasvoueen ses[ecn[ece|erePese{eoe] oe [ooeP oe [eee] Dleool ae [eee] x | x |---| Cucudlea, Sil. Syst. t. 3, f.1and 12a. Cleidophorus, Hall. 
Cucullella, M‘Coy, Brit. Pal. Foss. p. 284. Arca sub- 
; antiqua, D’Orb. Prod. Etage 1. C. antiqua, Siluria, 4 ed. 
$..34; £. 16: 
— Cawdori ......... SOW: sescsscdcees Bd ae ae (ee, bee relator ce voo[ie |e |e [nce] ee[eoo]---| Cueullea, Sil. Syst. t. 3, £. x7. Cucullella, Siluria, 4 ed. 
t. 34, f. 3. 
— coarctata......... Phill... ccscsanse reales leee| eee se Feel | be veel & [eee] a [eee] ge [eee]eee] Weeula, Mem. Geol. Surv. vol. ii, pt. 1, p. 366, t. 22, f. 1-4. 
Cucullella, M‘Coy, Brit. Pal. Foss. p. 284. 
= SOVELGN .ess<srsere SOWsene ete eteeeee eee \655 fac) facet bac secleee[eoeP ae [eee] a [eeeleee[eee] & |e ]..-| Cucullea, Sil. Syst. t.3, f.12. Arca subovata, D’Orb. 
| Etage 2, No. 639.  Cucullella, M‘Coy, Brit. Pal. Foss. 
} p. 284; ib. Siluria, 4 ed. t. 34, f. 17. 
Cypricardia ...... Lam. 1817...... SIPHONIDA (INTEGROPALLIALIA). 
— ecymbeformis ... Sow. ..........+ $64 [ood boda) joc fer cal (col foed (aes cesjeveleee|oneleee}eesl/occ/ee.| Vide Goniophora cymbeformis. 
1038 
