PALOZOIC. CRUSTACEA. CAMBRIAN AND SILURIAN. 
CAMBRIAN. LOWER SIL. UPPER SILURIAN, 
Is Hep lel St fe 
a . Sep lel ols] cle] | & 
| =| |& S\ElslelalsiSl81 82 
& eles Jelsoft aisliFisis 
SPECIES. Glelelel 2] olSls| ales ls 13 Pals REFERENCES. 
He lslSles(SiAlslsisislalelelsl= 
2 /e| SS S/elelel-lslelelelel sisi ea 
2/1S)E/S1S/S|s/Sfahel2)2| s/s als |S 
BISISIE/SISIS/SIS IE IEE Saisie 
Dictyocaris (continued). 
— Slimoni ......... ISN opsepncencon (eon) (sca Insel ned) (ad food eed ead oe * Ann Mag. Nat. Hist. 1860, 3 ser. vol. v, p. 162, woodcut. 
CoNoOCEPHALIDE. 
Dikelocephalus,., D. Owen, 1852 
Centropleurus .. Angelin, 1852... 
— Celticus ......... ESE eapoaoredane fe [eeePeeefocedeesfeePeee[eneee-[es (Centropleura), Mem. Geol. Surv. vol. iii, p. 304, t. 5, f. 21, 
| 22, ? Nesuretus. 
| — discoidalis ...... Salts, Sxsccsuen Fl o0c] (EaG) (ce ec ose] fode| hae [bod food [ae feud) Iaad bed face (Centropleura), Mem. Geol. Surv. vol. iii, p. 304, t. 5, f. 18, 
| 19. ? Nesuretus. 
— furca ............ Saba eres Pa od [Sealand aed [aed Ined cael Iood foe bacd lars [ae fee (Centropleura), Mem. Geol. Surv. vol. iii, p. 303, t. 6, f. 4 
(t. 8, f. 10, tail of Nesuretus ?). 
== Ryts aecesbctccaccpesesconacescsaccee 21 (cOH (oe lose] aod [nee eee lec |eee) bed fone frog (eed food [eee (Centropleura), Mem. Geol. Sury, vol. iii, p. 305, t 5, f. 20. 
? Nesuretus. 
TRINUCLEID®. 
IONICS enc sccneve Barrande, 1846 
Seb AGT D sce soe sentiet ss RYE sa5cecnencoe (S00) |e) oc0|)50d FES load label ood] Iodol land [endl add fooel [nn [oop|lnorttcae Mem. Geol. Surv, vol iii, p. 321, t. 11a, f. 9. 
PHYLLOPODA. 
Discinocaris ...... H.Woodw.1866 
— Browniana ...... H. Woodw....... verfeee[eee| enters Ki|lsce| eae ee |jemel eee|loee|toee|'vellane Geol. Mag. vol. iii, p. 503, 1866; ib. Q. J. Geol. Soe. vol. xxii, 
| p: 503, t. 25, f. 4-7. 
NEBALIAD®, 
PHYLLOPODA. 
| Dithyrocaris ...... Scouler, 1835 ... 
| PA GAS \ ens cscs eae Scouler, 1835... 
— aptychoides...... ISIE paceepecpisee| Weee| ec (aed Iboc| eo aad Inoal lcd ead) {bad Wee) [a0 loa Vide Peltocaris. 
ASAPHIDE. 
Dysplanus .......4. Burmeister,1843) ...|...)...|...[e-+| e+ Sub-genus of [llanus. 
CHEIRURID®. 
Eccoptochile ...... (CEL RVG). Ged nel lope seal tbe lapel (sed) lose ledal lee Ine loae 
— Frederici 
| — Sedgwickii 
ASAPHID®. 
Ectillenus 
CoNOCEPHALID®. 
| Ellipsocephalus ,.. Zenker, 1833...\... 
— depressus 
— simplex 
CHEIRURID®. 
Crypheus (pars) Green, 1837 ...|...|...)... 
Salter, 1866 ...}...|...|... 
3 | Vide Cheirurus. 
a 
—— 
Sub-genus of Illwnus. 
Vide Conocoryphe. 
Vide ¥. variolaris. | 
Amphion, Geol. Report, Lond. p. 291, t. 3, £.6; M‘Coy, Sil. 
Foss. Irel. p. 46. Ampyx baccatus, Portl. Geol. Rept. 
Lond. p. 262, t. 3, f. 11. E. multisegmentatus, Salt 
Mem. Geol. Sury. Dec. VII, sec. 4, p. 7- 
