PALEOZOIC. 



HYDROZOA. 



CAMBBIAN AND SILURIAN". 



CAMEEIAN. tOWBE SIL. 



UPPEE SIITJEIAH". 



SPECIES. 



Didymograptus (contimied). 

 — ' Nicholsoni Lapw 



— nitidus Mall 



■ — patulus Hall 



— pennatulus Sail 



. Nich. 

 Sail 



— spai-sus Soph 



— • V. fractus Salt 



DlPlOaBAPTIDiE. 



Diplograptus M'Coy, 1850.. 



Friorwtus Sisinger, 1837 



Difrion Sarrande 



FalcBolUhus ... Siiess, 1851 .. 



— acuminatus Nich 



— angustifolius ... Sail 



— antennarius Hall ,. 



— barbatulus Salt. .. 



— bimTicroiiatus . . . Nich. . . 



— hullatus ., Salt, ., 



— armatus Nich. .. 



— cometa ,,.. Geinitz 



confertHS Nich. ,, 



dentatus Sronff. 



- Etheridgii HopJc.... 



- flmbriatus Sopk..,, 



- foUaceus Murch. 



-_ 



REFERENCES. 



Q. J^ Geol. Soc. vol. xxxi, p. 644, t. 33, f. 5. D- serratnlm, 

 Nich. Ann. Mag. Nat. Hist. 4 ser. vol. v, p. 343, t. 7, f . 3, 

 (non Hall.) 



Grapto, Quebec Group, p. 69, t. i, f . 1-9 ; ib. Nicb. Q. J. 

 Geol. Soc. vol. xxiv, p. 135. 



Grapto. Grap. Quebec Group, p. 71, 1. 1, f. 10-15. ? D. 

 hirmido, Salt. (loc. cit.) ; ib. Nicb. Q. J. Geol. Soc. vpl. xxiv, 

 p. 135; Ann. Mag. Nat. Hist. 4 ser. vol. v, p. 340, t. 7, 

 f. I ; id. Hopk. and Lapw. Grapto. of Arenig and Llandeilo 

 Group, Q. J. Geol. Soc. vol. xxxi, p. 644, t. 33, f . 4. 



Grapto. Quebec Group, p. 82, t. 3, f. 1-8, t. 5, f . 9 ? id. 

 Hopk. and Lapw. Grapto. Arenig and Lland. Q. J. Geol. 

 Soc. vol. xxxi, p. 643, t. 33, f. 3. 



Vide D. Niclolsoni, Lapw. 



Grapto. Pal. New York, vol. i, p. 273, t. 74, f . 3 ; ib. Nich. 

 Q. J. Geol. Soc. vol. xxiv, p. 134; ib. SUuria; 4 ed. p. 61, 

 Poss. 12, f . 8. Dicranograptus, Hopk. Geol. Mag. vol. vii, 

 p. 356, 1. 16, f. 1. 



Hopk. and Lapw. Grapto. of Arenig and Lland. Group, Q. J. 

 Geol. Soc. vol. xxxi, p. 643, t. 33, f. 2. 



Q. J. Geol. Soc. vol. xix, p. 138, woodcut p. 137, f. 13 e; ib. 

 Nich. vol. xxiv, p. 134. 



Geol. Mag. vol. iv, p. 109, t. 7, f. 16, 17. 



Graptolithus, Pal. New York, vol. iii, p. 515, f. i, 2. B. an- 

 gustifolius, Nich. Q. J. Geol. Soc. vol. xxiv, p. 525, 1. 19, 

 f. 8, 9. 



Climacograptus, Grapto. Quebec Group, p. 112, 1. 18, f. 11- 

 13. Diplograptus, Nich. Q. J. Geol. Soc. vol. xxiv, p. 139. 

 Tide Nich. Ann. Mag. Nat. Hist. 4 ser. vol. vi, p. 382, 1870. 



Mem. Geol. Surv. vol. iii, p. 330, 1. 11 A, f. i. 



Ann. Mag. Nat. Hist. 4 ser. vol. iv, p. 236, 1. 11, f. 12. 



Vide Climacograptus. 



Ann. Mag. Nat. Hist. 4 ser. vol. iv, p. 234, 1. 11, f. 8. 



' Cephalograptus; Verst. Grauw. die Grapt. p. 26, 1. 1, f. 28. 



Diplo. Can-uthers, Geol. Mag. vol. v, p. 131, t. 5, f. 4; ib. 



Ricbter, Zeitschrift, 1853, 1. 12, f. 16, 17. D. tubnlari- 

 formis, Nich. Geol. Mag. vol. iv, p. 169, t. 7, f. 12-15. 

 Q. J. Geol. Soc. vol. xxiv, p. 526, 1. 19, f, 14, 15. 



Fucoides, Hist.V^g^t. Foss. t. 6, f. 9-12. Diplo. prhtini- 

 formu, Hall, Grapto. Quebec Group, p. no, 1. 13, f. 15- 

 17; ib. Nich. Q. J. Geol. Soc. vol. xxiv, p. 140, t. 5, f. 14 

 -15. Diplo. dentatus, Hopk. and Lapw. Grapto. of Arenig 

 and Lland. St. David's, Q. J. Geol. Soc. vol. xxxi, p. 6i;6, 

 t. 34, f . 5 a-k. 



Geol. Mag. vol. ix, p. 504, t. 12, f. 5. 



Geol. Mag. vol. ix, p. 506, 1. 12, f. 8. 



Vide D. pristis. 



