PAL®OZOIC. 
SPECIES. 
PHACOPIDE. 
Portlockia ..... sare MCoy, 1855 ... 
UD CBU Sos oun sacuccavecwensveswetens sod|[eanl fase 
ICOMESTL a .suctecccateascascivsunsettes halle lle se 
LEPERDITIADE. 
Primitia .. R. Jones, 1865.. 
Beyrichia ...... Auct. (pars) ... 
— bicornis ......... SONER. se acivesves Sealand) lace 
— bipunctata ...... Glee Fexsce aeates Son ices 
— buprestis ......... Saline ane stcs es godine 
— concinna......... eJLONES. cescnserens eee llesellleee 
— cristata ......... ROTO -pocencaebe aes ||seallece 
— excavata......... Jones & Holl...|...|...|... 
— lenticularis ...... Jones & Holl...|...)...]... 
— Maccoyi ......... SLE. aceseercees 
— matutina......... JONES occceceaten see hie) eS 
— mundula......... SOMES) eae eseseacys ane level aes ea le ael[iewe tec 
=F TIANA) Uesiseccevaes eS ONES Enea eracecee 
— OVALE .....ecce eee Jones & Holl,..|...|...]... 
Fs PUSS feces cee vers TONES vo cescse0ees eoe|(eesi|fene 
— renulina ......... JONES cacy daeece kaalecal ane 
— Roemeriana ... Jones ............ bed eon loca 
— Salteriana ...... JONES) ex seasee sts Rod leon lore 
— sancti-patrici ... Jones 
— semicordata .., Jones .... 
UPPER SILURIAN. 
CAMBRIAN. LOWER SIL. 
‘Wenlock Lmst. 
St. David’s. 
Lower Ludlow. 
Lingula Flags. 
Llandeilo. 
Caradoe or Bala. 
Low. Llandovery. 
Up. Llandovery. 
Woolhope Lmst. 
Wenlock Shale. 
Aymestry Lmst. 
| Upper Ludlow. 
| Tilest. & Passage. 
| Pass up. 
Tremadoc. 
Arenig. 
| Menzvian. 
| Har. 
i. bride Phacops. 
ae seminulum ..... Jones 
— simplex ........, CLONES anatase cel foal lace 
— solvensis ......... CONES; sehacncures ne 
— strangulata...... SLEDS ncene sens 
SULCESE savas eae slses SONCS cesta ssers 
— trigonalis ...,.. TONES\ .saresexeoes Ac6 foc lass 
— umbilicata ...... JONES wcvisvessees 
CRUISE WACG RAG CAMBRIAN AND SILURIAN. 
REFERENCES. 
Beyrichia, Amn. Mag. Nat. Hist. vol. xvi, p. 173, t. 6, £. 23; 
ib. vol. xxvi, p. 420, 3rd series. 
MS. Cat. Foss. Mus. P. G. 1865, p. 16; ib, Jones and Holl, 
Ann. Mag. Nat. Hist. 4 ser. vol. iii, p. 220, woodcut, f. 5. 
Vide Entomis. 
Cytheropsis, Ann. M.N. Hist. 3 ser. vol.i, p. 249, t.10, f. 3, 4. 
Ann. Mag. Nat. Hist. vol. xvi, p. 420, t.13, f.1. 
Ann. Mag. Nat. Hist. 4 ser. vol. iii, p. 222, t.15, f. 10. 
Ann. Mag. Nat. Hist. 4 ser. vol. iii, p. 219, woodcut, f. 4 
a, b,c. 
Mor. Cat. Brit. Foss, 2ed. p.105. Cythere phaseolus, M‘Coy, 
Synop. Sil. Foss. Irel. p. 58; ib. Salt. Siluria, 3 ed. p. 517; 
ib. Jones, Ann. Mag. Nat. Hist. 4ser. vol. ii, p. 55, t. 8, 
f.1-3. Forbes, n. sp. Baily, Dese. Quarter-sheet, 35 N E, 
Geol. Surv. Irel. 1858, p. 10. 
Ann. Mag. Nat. Hist. 3 ser. vol. xvi, 1865, p. 418, t. 13, f. 7. 
Beyrichia, Ann. Mag. Nat. Hist. 2 ser. vol. xvi, p. 90 and 
174, t. 5, £. 23); t.6, £..28-37- 
Bey. strangulata, var. y, Ann. Mag. Nat. Hist. 2 ser. vol. xvi, 
p.173, t. 6, f.22. P. nana, id. vol. xvi, 3 ser. p. 420. 
Ann. Mag. Nat. Hist. 3 ser. vol. xvi, p. 423, t.13, f.13. 
Ann. Mag. Nat. Hist. 3 ser. vol. xvi, p. 424, t.13, f. 11. 
Ann. Mag. Nat. Hist. 3 ser. vol. xvi, p. 419, t.13, f.5; ib. 
Monthly Micro. Jour. 1870, p. 185, t. 61, f. 14. 
Ann. Mag. Nat. Hist. 3 ser. vol. xvi, p. 422, t. 13, f. 8. 
Beyrichia strangulata, var. 8, Ann. Mag. Nat. Hist. 2 ser. 
vol. xvi, p. 89,172, t. 5, f.15, 16, &e. t. 6, f. 20. 
Ann. Mag. Nat. Hist. 4ser. vol. ii, p. 56, t. 7, f. 4. 
Beyrichia strangulata, var. B, young, ib. t. 6, f. 21. 
Beyrichia, Aun. Mag. Nat. Hist. 2 ser. vol. xvi, p.173, t. 6, 
f. 24; ib. 3 ser. vol. xvi, p. 418. 
Ann. Mag. Nat. Hist. vol. xvi, 3 ser. p. 4173 ib. Beyrichia, 
vol. xvi, t.16, f. 25-27. 
Leperditia, Aun. Mag. Nat. Hist. vol. xvii, 2 ser. p. 95, t. 7, 
f.16, Primitia, Ann. Mag. Nat. Hist. 4 ser. vol. ii, p. 55. 
Cytherina levigata, Salt. Q. J. Geol. Soe. vol. i, p. 445. Bey. 
“strangulata, Brit. Pal. Foss. App. A, p.ii, t.1 E, f.1; 
M‘Coy, ib. p. 156. Primitia, Jones, Ann. Mag. Nat. Hist. 
2ser. vol. xvi, p. 171, t. 6, £.18; var.a, ib. p.172, t. 6, 
f.19; var.B, t. 6, f. 20,21; var. 7, t.6, f. 22; ib, Ann. 
Mag. Nat. Hist. 3 ser. p. 416, and var. a, p. 417. 
Ann, Mag. Nat. Hist. 3 ser. vol. xvi, p. 421, t.13, f. 3. 
Ann. Mag. Nat. Hist. 3 ser. vol. xvi, p. 421, t.13, f. 4. 
Ann. Mag. Nat. Hist. 3 ser. vol. xvi, p. 421, t. 13, f. 2a-d; 
ib. 4ser. vol. iii, p. 220, t.15, f. 6. 
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