PALZOZOIC. CONCHIFERA. CAMBRIAN AND SILURIAN. 
CAMBRIAN. LOWER SIL. UPPER SILURIAN. 
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= lel | | @lclEEISIZ SIE Elg 
: : Alalels| lols lenis : 
SPECIES. slflelS|lelolS/8/ SSSR ISI lela REFERENCES. 
SI SIBISIE ES IPS le lelelel Sele 
Ale El sheds] lcd ald ache 
Mytilus (continued). 
ELON LING ce encennanseewrsievitcree ster cfi6) bec |da3] [oa foas 505 |Ssclload Doe vesfese[ece[ece[eee]ece]eee]oe-] Wade Anodontopsis. 
— platyphyllus ... Salt. ....cccc0. sealeec| eed See eee aod) sce fice) Kee sesfecs[essfeeeferfese[oeelees] ede Modiolopsis. 
— semirugatus .,, Portl..........0.- ssollsetlbedl Keo fons foc aed eer lane ne |leeillecs [eer [ales sealleaelooalie rece Oandiolas 
— simillimus ...... KHorbesi yee. s.ss ana|(6a01fepe| fee [oop Ab 9 sod Ree sesfeeefecfoefere]eeefeeteof Mem. Geol. Surv. Ireland, Expl. sheets 119, p. 9, quarter- 
sheet, 35 N.E. 
— Pungiuculatus Salt. ............ Bea] ject! (aca oss aoe cc [ba6) [eed fas sxe] Joe-[ee-[eoe]ee-[e--]---| Mem, Geol. Surv. vol. ii, pt.1, p. 365, t. 20, f. 6. 
NUCcULIDR. 
INU CULE ca secscso ncn ees Lam. 1799 «2.0. 
JEEP. remp SeOCcOE Schum. 1817 ... 
— coarctata ...... LOT cepepnnoaoe Sc foc [sal | 40a oe 300|(So0) (oad lesa sesfave[ecc{eecfeve[eaefesefeee] ede Cuculella. 
— deltoidea......... PhilUxrcaccccssers ced [ocd lee) ined [bod Mas lene|coch est vefeesleeelecs[erfoeefersforly 
— grandeva ...... LOLA FI ome ers leas ews tes eee | eee iea | ee | ees | ee allt 
— levata,........... Hall aseesccaecee|eee|see[ecsleesPoee|ere[oeeleecfees { 
— lingualis......... BP RAUL. eo eaesscnee Beal loool ode Ne en bl farsa) ee) hae Sc6l|G05| loca] lead! ican andl lace lone 
— ovalis SOTO: Neceecnccones Boo [San] (650) lead) [coe psn lonal tél laos 2335] [deo load ps8 ool seal lana Ino3 
— post-striata ... HIMIM. .ccccccsess Pecitlods taco aod (seer BB Hea lee Hoe seafecs[eee[ove{eee{our[ese[eee] § ade Ctenodonta. 
= [TRIED cA ioenoacncs Miinst, ......5.. Ban feo0! (600 Foe) Heslkeaal Iso! iced Knee al ool Bel (eee aon) Hd local lana 
— radiata ......... THORP endoncn eo (00 joo0] |ooa feo! {So [bd5] onal bad Hae 
— rhomboidea...... IBIAL watecncaers| nas lore (seelions[eae| cee eeal lees) aes 
— subacuta......... MESO oY eccccne: 555|(54) loos] [sel tase stollasslloaal bee 636! 0] tonal [an6l 501 [oS loo} fa 
— subeylindrica... M‘Coy ..... sesal lect ood eal aed bea B84 (a4 load ioe Kcollasa| bose acel boat lasal feat loc! ft] 
MYTILIDm. 
Orthonota ......... Conrad, 1838... 
Leptodomus (part) M*Coy, 1844 
Sanguinolites (part) M*Coy,1844 
Tellinites ...... Schloth, 1820... 4 ASIPHONIDA. 
? Allorisma .., King, 1844...... 
— affinis ............ TB BUDE Uegee repel ea lobe lobe eed Wed sod Sad lore ee * E Tellinites, Brit. Pal. Foss. p, 286, t.1 K, f. 31. 
— amygdalina...... StS. Bronopnnbeos saalaealiivee heel ee setlecolece| ge [eco] ae [eos ge loool ae eos]ees| Cypricardéa, Sil. Syst. t.5, £.2. C.retusa, id. ib. t. 5, £5. 
Leptodomus, M‘Coy, Brit. Pal. Foss. p. 278. Orthonota, 
Siluria, 4 ed. t. 23, f. 6, var. f.7. Var. Gentilis, Mem. 
Geol. Surv. Expl. sheet 32, Geol. Edinb. p.139, t.2, £.16. 
Sanguinolites, Brit. Pal. Foss. p. 276, t.1 K, f. 19, 20. 
— angulifera ...... ES COU) Wewne se s|'eas| aval ae|eee | e=e|eael taller | oes x | * fe 
}  Orthonota, Siluria, 4 ed, p. 229, Foss. 61, f. 3. 
bulla ese AS ca Ese eee ne am eek ete eel # sae Geol. Surv. Expl. sheet 32, Geol. Edinb. p. 139, t. 2, 
Bis 
— eingulata ...... UHASS) recacaeticiest are lcd nos lee] face apd| sal nae eon sesfecelees[ece|ecclees|ee[es-| Vode Grammysia. 
— complanata...... Otis ccestors sens Bd Iban lope lane foes na ketal deed ace ses[ecclecs|eccleoel we [ees|eae] Leelastra, Sil. Syst. t. 65 £. 7. 
— eymbaformis .., Mi Coy .........|or-)e0e] ore] eoefoee]ore] ool eeefees|ooel eas Vide Goniophora. 
— decipiens......... TAL OR cepa peel lose leer) ee leee| ood ca lead lend ba a Sanguinolites, Brit. Pal. Foss. p. 277, t.1 I, f. 24. 
— extrasuleata ... Salt. ......1..... p6d \eaol lane ace le dhol lore! anal Bae ses[ecs[oce|ece[ecs]oesfeee]--]| Véde Grammysia, 
— globulosa......... DE Coy) recs cas |feee| ane 'ser| vee] ear] sense lens | ss > Leptodomus, Brit. Pal. Foss. p. 278, t.1 L, f. 11. 
Bn) eal Wane Roan a laa be seclesc[ece{ecefeee{eee{eesfeee| Q. J. Geol. Sce. vol. xx, p. 300, t.16, f. 10. (Budleigh peb- 
bles.) 
— impressa......... ISO. sea ncseveaeslises|lone| cer lees| ces * * * Cypricardia, Sil. Syst. p.609, t.5, £.3. Orthonota, Siluria, 
4ed, t. 23, f. 3. 
Mem. Geol. Surv. vol. ii, pt.1, p. 362, t.19, f. 3. 
— inornata ,........ BoA aod \cin Bait lieie weed x Bea) eal iene ea (ser 
eee ee 
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