PALAOZOIC. 
CAMBRIAN. LOWER SIL. 
CRUSTACEA. 
UPPER SILURIAN. 
CAMBRIAN AND SILURIAN 
ells S/Ele/3 lslelelelel® 
ie ean Slee iSlaleisiaisi2 
Alalels [slElslol2 RIS lls le 
SPECIES. FO 2 als S\o|8 8 Bil Jed | EI Nos | REFERENCES. 
Be El SPSS lAlslsislsisislel2 
a5 |2/5/5 |S (5 |SlAIS ISIE BIBI IE 
HISISIBISIAISIHIPEIFIE IIS IP IBIS 
Agnostus (continued). 
— pisiformis ...... TOS On eee yaa lode loco 254 loge| fan Gc! }o084 fao4| lon Vide A. princeps. 
— princeps ......... —WGREr craesiivaves Pea lao) ead) bor aos eel leet Beal ler el toe asa ae ellasntteca Q. J. Geol. Soc. vol. xx, p. 237, t.13, £.8; Mem. Geol. Surv. 
Dec. XT, t. 1, £155 “iby yol.ail, p..296> t.45ef.2) ius 
t.5, f.1. A. pisiformis, Salt. Siluria, 4 ed. p. 43, Foss. 5, 
f.4; p.51, Foss. 10, f.9; var. A. obesus, Belt, Geol. Mag. 
vol. iv, p. 295, t. 12, f. 4.a-d. 
— scarabeoides ... Salt. ............/e0 P| ("3 lfpee (ba6 lo s00| od dnc lhl fae fane!l fan food) fac lao Fact Hicks, Q. J. Geol. Soc. vol. xxviii, p.175, t.5, f. 8. 
— scutalis ......... Salts, warlock erection bins FM Fine) [soul fond [oe bad lad Brit. Assoc. Rept. 1865, p. 285; ib. Hicks, Q. J. Geol. Soc. 
vol. xxvili, p.175, t. 5, f.9-14. 
— tardus............ LB Grtrtss jaseoeene | lgee[ere[eesPore|oee[eesfeeefors Vide A. trinodus. 
— trinodus ......... SALAS senoatincadnns| logo) lade) boc| fod) (age 2 \la641 Isao! Ana] lol loon! ool enol Stal col ees Mem. Geol. Surv. vol. ii, pt. 1, t. 8, f.12,13. (8, Converus), 
A. trinodus, ib, Dec. XI, t. 1, f£. 8-10. Trinodus angus- 
tifrons, M‘Coy, Synop. Sil. Foss. Ivel. t. 4, f. 3; ib. Brit. 
Pal. Foss. t. 1 E, f. 10, 12,13. TZ. tardus, Barr. M‘Coy, 
ib. t.1 E, f.9. Ag. trinodus, Salt. Mem. Geol. Surv. vol. iii, 
p. 297, t.19, £.8; ib. Siluria, 4 ed. p. 204, Foss. 46, f. 6. 
— trisectus ......... ISQUGS ieee tecesse| esol exe #7 (ed) Nest leod| lace) oe jood| esa! leon eel Meal ee Mem. Geol. Surv. Dec. XI, p. 10, t.1, f. 10; ib, Geol. Mag. 
vol. v, p. II. 
— Erber culatus oo. cvccsecroreaserssenns|ovefece)| eee |eeepees|eee|eon|ecefors Vide Beyrichia Wilckensiana. 
— Turneri ......... IS{cL za soncpeeoneon 3 |e (seb! lal lo6) late) 6d fSso| ee snl asa be) seal eel lee 
Se eeiatis Salt \ Doubtful species. 
KA SUS ...eee D  seevensveves|ecelecs HK [eccPacs[ecelocn|eechecs 56 
CHEIRURID®. 
Am phion) so.cs..es 
——= PENOVOLEUS) ea scer Ales ese eien=rcel|(sei|esel ese| sien flee {lee 4 ||ea0| fecal {oon Mono. Brit. Trilob. Pal. Soe. 1862, p. 82, t. 6, £. 31. 
— gelasinosus...... PO rt oennsecesses|(ee0)| sce |lecel eee |ece| cells ses | ae Vide Cheirurus. 
— multisegmentatis Portl............. Sop) oo0| eel |coe jane [aan] oaa (bee! foc! ec! foo) fne| feso) Joao lene nas Vide Encrinurus. 
— pauper...........5 ISGUt) csarcaceese Eo} lees ne Palin| loc Mono, Brit. Trilob. Pal. Soc. 1862, p. 83, t. 6, f. 32. 
— pseudoarticulatus .., Portl. ...... Ba: esalloac ead byealfoce Fl ls6c4 604 loo] [coa| lon] lava! load leo) aoa feo Amphion, Geol. Rept. Lond. p. 291, t. 3, f.5; ib. Salt. 
Mono. Brit. Sil. Trilob. Pal. Soe. 1862, p. 80, t. 6, f. 29, 
30; ib. Siluria, 4 ed. p. 515. 
Gah on pa enOAnRREeE Dalmann, 1827 
— Austini ......... ERODE arencrectes aces] seal Gea seals [eel eoell eel eed ase Vide Mammillatus. 
— baccatus .. J Balle Bab anScs0ce4| bel aa\ (654434) Ince] [aac feos |ace| ooo] laeel Fase baal toa la Vide Encrinurus multisegmentatus. 
— latus ~......06- DSS COUh Grecea seed loeellleorillenai earl Seelliena| ee tae | oars Vide A. nudus. 
=| MAM MILATIS Me SATS) cc cesate vel |ceelleeel| tolled oars eH eae Resell Gael |ecorll Be] ere aerell eise stall eee lies Isis, 1835, p- 335, t. 8, f. 4. 4. Austini, Portl. Geol. Rept. 
pazou, tb fina. 
— nasutus ,........ DAUM, ccrcecoserse |reolecs lesa evalene fe | eral erahod een neatltecal scaliccstlnee Palwad. t.5, f.3. ? A. mammilaris. 
EU CUS cee cere aces MMOs, vanace celles) cos) exellnedl eer Pal Elle (ease) ano faa] ero! eel Inet! apa rect face Trinucleus, Sil, Syst. p. 660, t. 23, f. 5. Ampyx, Forbes, 
Mem. Geol. Surv. Dee. II, t. 10. Ampyx latus, M‘Coy, 
Brit. Pal. Foss. p. 147, t. 1 E, f. 13. A. nudus, Siluria, 
4ed, p. 206, Foss. 48, f. 7, t. 4, f.9, 10. 
— parvulus......... OTD ES season et (ese | tes| sen ces | aes leee Palle eed ae * Mem. Geol. Surv. vol. ii, pt. 1, p. 350, t. 1o. 
— pennatus......... ISI Be Pepe ssecnons| koce bod leet local (eal ae Pll ose Sal leas eel aed) eal fase aaa eect lee Cat. Foss, Mus, Pract. Geol. p. 4. 
— prenuntius...... Sides peepacnenees Fa eal leoailona| (sec jooclioos Mem. Geol. Surv. vol. iii (Geol. N. Wales), p. 321, t.8, f.5; 
ib. Siluria, 4ed. p. 203, Foss. 45, f. 6. 
— rostratus......... SONS! Vencioscs satel lene aveleealeeelees | eal eA focal lors) eel aes faee eae) Pooe| acl led Isis, 1835, p. 334, t. 8, f.3. A. Sarsii, Portlock, Geol. Rept. 
p. 260, t. 1, f.9, 10. 
— Salteri............ CEES oer ed RS ees re (oer (eal aca iste! keoet (sect (aca! [esl fons) pol wae Q. J. Geol. Soc. vol. xxxi, p. 182, t, 10, f. 7, 8. 
NOLS ces etacsvase LOT. scnsccsasees Vesa] cara inet aa Mootle oete | eee Nee tee Vide A. rostratus, Sars, 
— tumidus ......... TORU ee oeecre eee Veo Pal ee] FER] (Gos P| Iso Pssel eae eel cel ee ieee lee acs feo Mem. Geol, Surv. Dee. II, t. 10, f. 4; ib. vol. iii (Geol. N. 
Wales), p. 320, woodcut 9, t. 23, f. 6. 
40 
