PALEOZOIC. 



HYDEOZOA. 



CAMBRIAN AND SILURIAN. 



CAMBBIAN. LOWER SIL. UPPEE SILUBIAN. 



SPECIES. 



Glossogbaptim: 

 (Lasiogeaptidjb). 



Lasiograptus Lapworth, 1873 



— bimucronatus... Nich 



— costatus Lapw... 



— Sarknessi Mich... 



— margaritatus ... Lapw. 



— retusus Lapw. 



Leptogbaptiiwe. 



Leptograptus Laptcorth, 1873 



Nemagraptidce... Hop 



— capillaris Carr 



flacidus Sail 



M0N0GEAPTID.E (Lapworth). 



Monograptus Geinitz, 1853... 



Graptolithus... Sis., Linn. 1751 



Monoprion Barrande, 185c 



Graptolites Auct 



— argentius Nich 



— argutus Lapw 



Barrande i Suess. . 



colonus Barr.. 



var. dubius Suess. . 



communis Lapw. 



concinnus Lapw. 



convolutus Sis. 



Var. a. communis... Lapw. , 



— b. fimbriatus ... Nich 



— c. proteus Barr 



— d. spiralis Geinitz. 



— crassus Lapw, , 



— crenularia Lapw. . 



— crispus Lapw. . 



cyphus. 



Lapw. 



REFERENCES. 



Liplograptus, Ann. Mag. Nat. Hist. 1869, 4 ser. vol. iv, 

 p. 236, t. 11, f. 12. (Diplograptus.) 



Fide Lapw. Ann. Mag. Nat. Hist. 5 ser. vol. vi, p. 22. 



Vide L. costatus. 



Belfast Nat. Field Club (Grapto. Co. Down), p. 135, t. 6, f. 25. 



Ann. Mag. Nat. Hist. 5 ser. vol. v, p. 175, t. 5, f. 24. 



? Nemagraptus (Cladograptut). Vide Nemagraptus, loc. 

 cit. p. 12. 



Graptolites, Quebec Group, p. 143, t. 2 ; ib. Lapw. Belfast 

 Nat. Field Club, 1876-7, p. 142, t. 7, f. 14. 



3 E 2 



Ann. Mag. Nat. Hist. 4 ser. vol. iv, p. 239, t. 11, f. 19. 



Scottish Graptolites (Monograptidse), Geol. Mag. Dec. II, 

 vol. iii, p. 318, t. 10, f. 13; ib. Belfast Nat. Field Club 

 (Co. Down), p. 131, t. 5, f. 5. 



Bbhmische Graptolithen, t. g, f . 12; ib. Lapw. Geol. Mag. 

 Dec. II, vol. iii, p. 500, t. 20, f . 5 ; ib. Belfast Nat. Field 

 Club, Co. Down, p. 128, t. 5, f. 21. 



Grapto. de Boheme, t. 2, f. 1-3 ; ib. Nicholson, Q. J. Geol. 

 Soc. vol. xxiv, t. 20, f. 9-1 1 ; ib. Lapw. Ann. Mag. Nat. 

 Hist. 5 ser. vol. v, p. 152, t. 4, f. 3, 4. For references, 

 see p. 10. 



Bbhmische Graptolithen, t. 9, f . 5 ; ib. Lapw. Scottish 

 Monograptidse, Geol. Mag. Dec. II, vol. iii, t. 20, f. 10. 



Belfast Nat. Hist. Club, 1876-7, p. 128, t. 5, f. 16. 



Scottish Monograptidse, Geol. Mag. Dec. II, vol. iii, p. 320, 

 t. 11, f. 1 ; ib. Belfast Nat. Field Club, p. 130, t. 5, f. 19. 



Lethea Suecica, t. 38, f. 7. Lapw. Geol. Mag. Dec. II, 

 vol. iii, p. 358. 



I Geol. Mag. Dec. II, vol. iii, p. 358, 1. 13, f. 4 a, b. .§ 

 Geol. Mag. Dec. II, vol. iii, p. 358, t. 13, f. 4C,d. "* 

 Geol. Mag. Dec. II, vol. iii, p. 358, t. 13, f. 4e,f. 

 Geol. Mag. Dec. II, vol. iii, p. 358, 1. 13, f . 4 g, h. 

 Ann. Mag. Nat. Hist. 5 ser. vol. v, p. 155, t. 4, f. 8. 

 Ann. Mag. Nat. Hist. 5 ser. vol. v, p. 153, t. 4, f. 10. 



Scottish Graptolitidsp, Geol. Mag. Dec. II, vol. iii, p. 503, 

 t. 20, f. 7; ib. Lapw. Belfast Nat. Field Club, 1876-7, 

 p. 128, t. 5, f. 13. 



Scottish Monograptidse, Geol. Mag. Dec. II, vol. iii, p. 352, 

 t. 12, f. 3; ib. Belfast Nat. Field Club (Co. Down), p. 130, 

 t. 5. f. 25. 



" 395 



8 2? 



