PALEOZOIC. 



CONCHIFERA. 



PEBMIAN. 



lOWEB 

 GEOUP. 



TJPPEB 

 GBOTTP. 



SPECIES. 



Sub-Kingdom, MOLLUSCA. 



Lamellibeanohiata. Blainv. 

 Class, CONCHIFEMA. Lamarck. 



Pelecypoda. Goldfuss. 

 Group, MoNOMTAEiA. Lamarck. 



Mytilid^. 

 Auoella Keyserling, 1846 



Mytilns \ 



Myalina V {pars) Auctorum 



Modiola j 



— Hausmanni Q-oldf. 



AvictTLlD^. 



Avicula Klein,, 1753 . 



Monotis Brown, 1830. 



— Garforthensis King 



— piimaeformis O-einitz 



— radialis Ftiill 



— speluncaria Schloth 



BaJcevelUa 



AVICUUDJJ). 

 Gervillia Defrcmce, 1830.. 



BaJcevelUa King, 1848 



Mytilus Linnceus, 1758 ., 



— antiqua Miinst. 



bicarinafa King ... 



injlata Broion 



keratophyga Schloth. 



Sedgwickiana King 



tumida King 



364 



m 



EEFEEENCES. 



s, Petrefact. GermanisB, vol. ii, p. 168, t. 138, f. 4, 1837. Myt. squamosiis. 

 Sow. Trans. Geol. Soc. Lond. 2 ser. vol. lii, p. 120. Myt. acuminaius, Sow. Phill. 

 Ency. Geol. vol. i, p. 190, f. 2, 1837; ib. De Vemeuil, BuU. Soe. Gdol. de France, 

 2 ser. vol. i, p. 32, 1844. Myiilus Hausmanni, Goldf. Geinitz, Gruudriss. d. 

 Versteinerungen, p. 453, 1846; p. 9, 10, t. 4, f. 12, &c. Myiilus squamosus. 

 Sow. King, Mono. Brit. Perm. Foss. Pal. Soc. p. 159, t. 14, f. 1-7. Aueella 

 Hausmanni, Goldf. Geinitz, Dyas. Zechst. und das Roth. p. 72, 73, t. 14, f. 8-16. 



Mono. Brit. Perm. Foss. Pal. Soc. p. 157, t. 13, f. 24. 



Dyas. Zechst. und das Rotb. p. 77, t. 14, f. 1-4. P. prisca, Howse. 



Vide A. speluncaria. 



Gryphites, Akad. Mflnck p. 30, t. 5, f. i. Av. gryphmoides. Sow. Ti'ans. Geol. 

 Soc. Lond. 2 ser. vol. iii, p. 119. Avicula, Geinitz Versteinerungen, p. 10, t. 4, 

 f . 18, 19. Monotis, King, Mono. Brit. Perm. Foss. Pal. Soc. p. 155, t. 13, f. 5-21. 

 Avicula speluncaria, Schloth. Geinitz, Dyas. Zechst. und das Roth. p. 74, t. 14, 

 f. 5-7. Avicula (monotis) radialis, Phill. Ency. Met. vol. iv, t. 3, f. 5, King, 

 Mono. Brit. Perm. Foss. Pal. Soc. p. J57, t. 13, f. 22, 23. 



Vide Gervillia. 



Avicula, Goldf. Petref. Germ. pt. 2, p. 126, 1. 116, f. 7. Avicula inflata, A.Bin- 

 neyi, A. discors. Brown, Trans. Manch. Geol. Soc. vol. i, p. 65, t. 4, f. 25, 28, 

 1 841. Gervillia, Howse, Notes on the Perm. Syst. p. 29. BakevelUa antiqua^ 

 Miinst. King, Mono. Brit. Perm. Foss. Pal. Soc. p. 168, t. 14, f. 28-34. Gerv. 

 antiqua, Geinitz, Dyas. Zechst. und das Roth. p. 78, t. 14, f. 17-20; ib. Kirkby, 

 Q. J. Geol. Soc. vol. xvii, p. 303. 



Tide G. keratophyaga. 



Vide G. antiqua. 



Mytilites, Akad. Munch, vol. vi, p. 30, t. 5, f. 2. Avicula keratophyga, Goldf. 

 Petrefacta, pt. 2, p. 126, t- 116, f. 6; ib. Howse, Trans. Tyneside Nat. Field Club, 

 vol. i, p. 249, 1848. Gervillia, Howse, Notes on the Perm. Syst. p. 30, 1858. 

 Bakevellia, King, Mono. Brit. Perm. Foss. Pal. Soc. p. 167, t. 14, f. 24-27. Ger- 

 villia, Geinitz, Dyas. Zechst. und das Roth. p. 77, t. 14, f. 21, 22. B. bicarinafa. 

 King, Mono. Perm. Foss. Pal. Soc. p. 170, t. 14, f. 41, 42. 



BaJcevelUa, King, Mono. Brit. Perm. Foss. Pal. Soc. p. 171, t. 14. f. 38-40. Ger- 

 villia, Geinitz, Dyas. Zecbst. und das Roth. p. 78, t. 14, f. 23-25. 



BaJcevelUa, King, Mono. Brit. Perm. Foss. Pal. Soc. p. 170, 1. 14, f. 35-37. Avicula 

 injlata, Brown, Howse, Trans. Tyneside Nat. Field Club, vol. i, p. 250. 



