TAL.EOZOIC. 



HYDROZOA. 



CAMBRIAN AND SILURIAN. 



CAMBHIAN. LOWKK 8IL. 



UPPKB SILUB1AK. 



BFBCISS. 



Sab-Kingdom, CCELENTERATA 

 Freg and Leuckart, 1829. 



CUm, HYDROZOA. 



Nbxaobaptids. 

 A»ygosr»ptu« ... Nicholson and 

 Lapw. 1875 ... 



— Lapworthi Nich 



CALLOGBAPTIDiE. 

 Callograptus Hall,l86$ 



— elegans Ball 



— radiatus Hopk 



— radicans Hopk 



— Salteri Hall 



Nemaobaptid*. 



Cladograptus Oeinitz, 1 85 2 . . 



Carruthers,i8§8 



Plevrograptus . . Nicholson, 1 867 



— capillaris Carr 



— gracilis Hall 



— linearis Carr 



DICHOGBAPTJDjE. 

 Clematograptus ...Hopkinson,l87§ 



— implicates Hopk 



Diplogbaptid.b. 

 Climacograptus . . . Hall, 1865.. 



— antennarius ... Hall 



— bicorni8 Hall 



bullatus Salt. 



cu'latus Lapw. 



eonfertus . 



Lapw.. 



implicatus Hopk.... 



innotatuB Nich. ... 



minutus Carr. ... 



rectangularis ... li'Coy 



scalaris Linn. , 



— terctiusculns ... His. 



— tuberculattu ... Nich. 



6 o 



I 



I 



REFERENCE^. 



Ann. Mag. Nat. Hist. 4 ser. vol. xvi, p. 269, t. 7, f. 2. 



Grapto. Quebec Group, p. 134, 1. 19, f. 1-4; il>. Hopk. and 

 ,Lapw. Q. J. Geol. Soc. vol. xxxi, p. 666, t. 36, f. 9. 



Q. J. Geol. Soc. vol. xxxi, p. 665, t. 36, f. 8. 



Ann. Mag. Nat. Hist. 4 ser. vol. x, p. 233, 1. 10. 



Grapto. Quebec Group, p.i35» *■ IO > f - 5" 8 i ib - Ho P k - and 

 Lapw. Q. J. Geol. Soc. vol. xxxi, p. 667, t. 36, f. 10. 



Vide Nemagraptus. 

 Vide Helicograptus. 

 Vide Pleurograptus. 



Loganograptus, Brit. Assoc. Rept. 1872, p. 107. Clemato- 

 graptus, Grapto. of Areuig and Lland. Rocks, St. David's, 

 Q. J. Geol. Soc. vol. xxxi, p. 652, t. 34, f. I. 



Vide Diplograptus. 



Diplograplus, Pal. New York, vol. i, p. 268, t. 73, f . 2 ; ib. 

 Mem. Geol. Surv. vol. iii, p. 329, 1. 11 a, f. I b, c. Vide 

 Nicholson, A.M. N. Hist. 4 ser. vol. vi, p. 380, 1870. 



Diplograptus, Q. J. Geol. Soc. vol. vii, p. 174, 1. 10, f. 2. 



Hopk. and Lapw. Grapto. Arenig and Lland. Rocks, St. Da- 

 vid's, Q. J. Geol. Soc. vol. xxxi, p. 655, t. 35, f. 8. 



Grapto. Arenig and Lland. Rocks, St. David's, Q. J. Geol. 

 Soc. vol. xxxi, p. 655, t. 34, f. 4. 



Vide Clematograptus. 



Ann. Mag. Nat. Hist. 4 ser. vol. iv, p. 238, t. 11, f. 16. 



Geol. Mag. vol. v, p. 131, t. 5, f. 10. 



Diplograptus, Brit. Pal. Foss. p. 8, 1. 1 B, f . 8 ; ib. Letb. 

 Suec. t. 38, f . 4. Diplograp. Salt. Q. J. Geol. Soc. vol. vii, 

 p. 63, 1. 1, f. 11. (? C. scalaris.) 



Grapto. Skanska Resa, p. 147. Prionotus, His. Letb. Suec. 

 p. 1 1 3. C. scalaris, Hall, Grap. Quebec Group, p. 1 1 1. 

 Siluria, 4 ed. Foss. p. 61, f. 4. Dipto. rectangvlaris, M'Coy, 

 Brit. Pal. Foss. p. 8 }> t. 1 B, f. 8. 



Prionotus, Letb. Suec. supp. 2, p. 5, t. 38, f . 4. Grapto. per- 

 sonatus, Scbarenberg ueber Graptolithen, t. 2, f. I7> 3 2 - 

 Diplograp. teretiusculus, Salt. Q. J. Geol. Soc. vol. viii, 

 p. 389, t. 21, f. 3, 4. Climaco. Nich. Q. J. Geol. Soc. 

 vol. xxiv, p. 139, t. 5, f. 11-13. 



Ann. Mag. Nat. Hist. 4 ser. vol. iv, p. 239, 1. 11, f. 18. 



