PALAOZOIC, CRUSTACEA. CAMBRIAN AND SILURIAN 
CAMBRIAN. LOWER SIL. UPPER SILURIAN, 
Bs : SBS] | glel|s & 
~~ gf a 3} Sia|2 g g 
BF | AREEER ERE 
SPECIES. slalale| iSlsialg lem ms aleialeale REFERENCES. 
Alesse) S/ SSA lslelele|Blalsl= 
sla|PIEVEISlelel(SlelSlElelalsle 
S1S)-AlF]E S|] of epo ii Sl ole} ala) a 
MISIRIS|SIASIAIP EE EIAs pala 
ASAPHIDR. 
Ogygia............ Brongniart, 1827 
— angustissima ... Salt. .........6 teslere|ese}eeaPers # [eee] ecepore vee[ece[eee|eeelaeeleee]eestaae! Mono. Brit. Sil. Trilob. Pal, Soc. p. 129, t.14, £.8,9, wood- 
cut, f. 30. 
== BUCH on ecwasien eRBTONGe: vecueise seofeee|oce[ecePors  eoe[eoefoee serferelereleceleee[eeeleesliee| Asaphus, Crust. Foss.t. 2, f. 2, 1822; ib. Sil. Syst. t. 25, f. 2. 
Trinucleus asaphoides, Sil. Syst. t. 23, f. 6. Asaphus, 
Barr. Sil. Syst. de Bohéme, t. 2 A, f. 25, 26. Ogygia 
Buchii, Salt. Mem. Geol. Surv. Dec. II, t. 6; ib. Siluria, 
4ed. p.51, Foss. 11, f. 2, t. 3, £. 1, 2; ib. Mono. Brit. Sil. 
Trilob. Pal. Soc. p. 125, t. 14, f. 1-7, t.15, f. 1-6; ib. Baily, 
Char. Foss, t. 7, f. 3. 
— ib. junior ...... SQLe tenons oecnese cap eee |Saclfose] foo 5 |locel facial boc serlecsfeee{ecsforefecs|eeleee| Zyinucleus asaphoides, Murch. Sil. Syst. t. 23, £.6 (original 
fig.) ; ib. Salt. Mono, Brit. Sil. Trilob, Pal. Soc. p, 125, t. 14, 
f. 5, 
— bullina ......... Salt. ..... 535] [cel |o00) oa) J foo0] foc foue aoe serfese[ere|eee[ess[ere]eee}...| Mono, Brit. Sil, Trilob. Pal. Soc. p.178, t. 25*, £. 5. 
— corndensis ...... MAU Clic reataesees 0) |354||a0n [oa] Jane  [see[ocafees seclece[ecs[ecs[ecs|eee[eeslone| Asaphus, Sil. Syst. t. 25, f. 4. Ogygia, Siluria, 4 ed. t. 3, 
f. 4. Ogygia corndensis, Salt. Mono. Brit. Sil. Trilob. 
Pal, Soc. p. 130, t. 16, f. I-14; ib. p. 160, woodcuts, 
£. 32, 33. 
— Corda on EULA OLE sacoticea| Inaal leon Ienelload fosellonallanettoodl 6c eect leess| Goal Go Vide Barrandia Cordai. . 
— CONVERG ......... Salter cdeseersce Bp6 (aod lado bec] laa £|llbodltood bec sesface|eee|ecefees[oee]eee].e-| Doubtful species. 
— dilatata ......... UP OT LU onanaeneesce 566 |e) [a0] eae leo God aalico4 food seslece[ecelecn[ere[oeelere]-..| Vade O. Portlockii. 
— Murchisoniea ... Murch. ......... 64||Gaol foe) lod asc God) |anel leer Jano ea|cca)eee|eos|cen|ene|-saleeal! D2@e Oty eina. 
— peltata Hi] be Iseelleoe| eee] oon App. Mem. Geol. Sury. vol. iii, p. 313, t.12, f.8. O. scuta- 
trix, Salt. Siluria, 2ed. p. 53, Foss. 9, f.1. O. peltata, 
Mono. Brit. Sil. Trilob., Pal. Soc. p.135, t.17, £. 8-10; 
ib. p.177, t. 25*, £. 1-4. 
— Portlockii ...... SLES eporoonoqoctl lca) sel lbeal aoe Seelloed| [rec| food loool ae lone seleaefece{eee{eee{...| ede Barrandia Portlockii. 
— radians ... 909000) fScr! [esc] [oc] |e] aso! faa f6eo) foes Joo) ae Vide Barrandia radians. 
TF PUGJOSA.vorerereees n 5a0|fs6| [G00 aor foo Boo ieee fee foci Fea |as«|ee|<se]ene|(es)eoel«s<|| o-2@e Cybele rugosa. 
— scutatrix ......... ISCO, spereneagee $0] B65) [00 | (3, too kann fad! [sod sesfeccface[ece{ecefeee{eon[eee| Siluria, 2 ed. p. 53, Foss.9, f.1; ib. Mem. Geol. Surv. vol. iii, 
p. 312, t. 8, £.8, t.9, f.1 ; ib. Mono, Brit. Sil. Trilob. Pal. 
Soc. p.133, t.17, £. 9-13. 
= NCLWYDWccscenenGles conned nace cont seal fopd| e231 Fe" edt faacl feed look susfecs[ece{eee{eeelee[eee]ee.| As@phus, Trans. Rept. Brit. Assoc. p.57. Ogygia, Mem. 
Geol. Surv. vol. iii, p. 313, t.9, f. 2-6, t.11 B, f.5, Geol. 
of N. Wales; ib. Mono. Brit. Sil. Trilob. Pal. Soe. p. 136, 
t.17, f. 1-7, woodcut, f. 31, p. 136; ib. Siluria, 4 ed. 
F p. 51, Foss. 10, £. 8 
— sub-duplicata .. Salt. .....6000... aol ee lesa lace) (se £05| Gee) ec (ee sesfece[eeeface|eee[eecfese[eee] ede Phacops, 
OLENIDR. 
Olenus) enceateses Dalmann, 1826 
Leptoplastus ... Angelin, 1852... 
Spheropthalmus,. Angelin, 1852 
Parabolina (pars) Angelin, 1852 
Salter, 1849 .. 
— alatus .........50 BOCK. ..05..44 tegelllestelleealiokeHl lea eae be boo knee! loos serlerslecelecs[ees[eee[ereleee| Grava. Norwegica, p. 143. Spheropthalmus, Angelin, Pal. 
Suec. t. 26, f.9. Olenus bisulcatus, Phill. Mem. Geol. 
Surv. vol. ii, pt.1, p. 55, £.1, 2; ib. Salt. Dec. XI, t. 8, 
f. 6; ib. Siluria, 2 ed. p. 47, 538. O. alatus, Salt. Mem, 
Geol. Sury. vol. iii, p. 302, t. 4, f.3. O. bisulcatus, Phill. 
Geol. Oxford, p. 68, Diag. 17, f. 7. 
— bisuleatus ...... PHI, vo..ccsseees 65) Pho] [E31 [bed] fase anal ec kaod fons: Vide O. alatus. Itis probable that Olenus (Spheropthalmus) 
pecten, Salter, and O. (Spherop.) flagellifer, Salter, and 
Olenus alatus are all referable to Spheropthalmus bisul- 
eatus, Phill. 
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