PALZOZOIC. PISCES. CAMBRIAN AND SILURIAN. 
CAMBRIAN. LOWER SIL. UPPER SILURIAN. 
- = ~—_—_— 
Se 4/Plslelslelsléle|& 
| |& Bl|s ale Sle l2 
Blalels Jeisislcalarsreigt 
SPECIES. slalalsl (Sisialal aisle lalBlalal <. REFERENCES. 
A/F) s/ sls 1S Als lS/81Si5/8lalals 
el/S|S/SS(E/SlElt ls lale|eleleiele 
S/O) SSIS S| S| Slaloie iol ol el aja|ea 
MISIAIS|S IAS IAF IEE IAla|b la |e 
CEPHALASPID® (HETEROSTRACT). 
Pteraspis............ Kner, 1847...... GANOIDEI. 
Cephalaspis ( part) Agassiz, 1835 
| — Banksii ......... 3 Tn stcLh oe hed lad Ieee eed BOE Neal Beal fecsel Hee seclece{oee[eeeleee] & [eee] | Q. J. Geol. Soc. vol. xii, p.100, t. 2, f.2a-d, 3; id.ib. vol. xiv, 
| p. 274, t.15; ib. Siluria, 4 ed. p. 240, Foss. 68, f. 2. 
| — LIndensis......... PStlhes “aepaapeenoee bod loce [adel sed (ean aad |aeal foci fooo seclese[ees[ere|eee[eee[eee[eee| ede Scaphaspis. 
— truncatus ...... FEDER CANALS cro beatles lees Reel foe ec | eae (ec de serlecs|eee[ec{ere|eee|ooe]...] 22@e Scaphaspis. 
Sclerodus ............ Agassiz, 1839... PLACOIDEL. 
—= pustecliferus 1... AG: ...cc0....000. ago] food [tess] (O09 fond Bd eoc!lacel ene ses[eesfese[ecelecs{ene{eeefee| Wide Eukeraspis pustuliferus. 
CEPHALASPID® (HETEROSTRACTI). 
GANOIDEI. 
Scaphaspis......... Lankester, 1864 
— Lnudensis,........ INGE panspeacnees Oeslaedltnee [ace ks cad bee aed Hes wa[ece[eeel ele] x | | «| Péeraspis, Ann. Mag. Nat. Hist. 3 ser. vol.iv, p.45, wood- 
cut, p. 46. Scaphaspis, Lankester, Mono. Fishes of O. R.S. 
Pal. Soe: p: 255 t.'2, £. 4. 
— truncatus ...... Hoses Si Salisncaves.\es. ese |-ccl see Boe ed eet ees weless{ecelecelete| x | «| 2 | Péeraspis, Q. J. Geol. Soc. vol. xii, p. 100, t.2, f.1. Scaph- 
aspis, Lankester, Mono. Fishes of O.R.S. Pal. Soc. p. 24, 
t. 2, f. 1-3, 1868. Pteraspis, Siluria, 4 ed. p. 240, Foss, 68, 
Sphagodus ......... Agassiz, 1839... a 
— pristodontus ... Age ..ccccccccenees Bed heeat real ec ee Sool [oon faced tape celses{see{eae/ece{eee/eeeleee] Vide Pterygotus problematicus (Crustacea, p. 67). 
Thelodus............ Agassiz, 1839... PLACOIDEL. 
— parvidens ...... AG areacdevceese ots B04 loc |ocal foae) (20% Bed) aoe Feel Hee ve[eve|ere]oee[eee] a [-ee[eee] Sil. Syst. p. 606, 704, t.4, £. 24-36; ib. Siluria, 4 ed. t. 35, 
f. 18. (Shagreen). 
129 
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