13 



Genera, Species. 



References. 



Forma- 

 tions. 



Localities. 



Hemicidaris, — contd. 

 intermedia, Flem. sp. 



Purbeckensis, Forbes, 



PSEUDODIADEMA, DeS01\ 



depressum, Agass. 



hemisplia?ricum,^4^ass 



Kleinii, Desm. sp. 



pentagonnm, McCoy, 

 sp. 



homostigma,.4 gass. sp, 



mamillanum, Roem. sp 



Gidaris, id. Br. Anim. 478. : Cor. 

 Forbes. Geol. Surv. Gt. 

 Br. Dec. III. t. 4.'<7. pa- 

 pillata. Park. Org Bern. 

 III. t. 1. f. 6. H. crenu- 

 laris, Morr. (1843). non 

 Laink. 



Gfeol. Surv. Gt.Br. Dec. III. Cinder b. 

 t. 5. 



Diadema, id. Cat. Sys. 8. ; 



Desor. Syn. 65. ; Wright. 



Br. Foss. Echin. I. 112. 



t. 6. f. 2. 

 Diadema, id. Prodr. 22. ; 



Cidarites pseudodiadema, 



Lam. An. s. vert. III. 



59. ; Diadema id. Agas. 



Ech. Sniss. 11. t. 17. 



f. 49-53. ; D.transversum, 



Agas. Prodr. 22.; Cidaris 



monilipora, Phill. Yorks 



127. ; Wright. Br. Foss. 



Echin. I. 127. t. 8. f. 1. 

 Cidarites id. Desmar. D. id. 



Desmoul. D. polystigma. 



Agass. Cat. Sys. 8. Ci- 

 darites miliaris, D'Arch. 



Mem. Soc. Oeol. Fr. II. : 



Desor. Syn. Ech. Foss 



73. t. 12. f. 4-6. 

 Diplopodia, id. Ann. Nat. 



His. 1848. 412. Wright. 



Br. Foss. Echin. 115. 



t. 6. f. 3. Diadema, id. 



Morr. Cat. 77. 

 Diadema, id. Echin. Foss. 



Suiss. 24. t. 17. f. 1-5. ; 



Desor. Syn. 65.; Wright. 



Br. Foss. Echin.ll8.t.6. 



f. 5. 



Cidarites, id. Yerst. Nordd. 

 Ool. 26. t 2. f. 1. ; Dia- 



dema, id. 



Agass. Cat. 



rais. 437. D. spinosum, 

 Agass. Cat. syst. 8. ; D. 

 Davidsonii, Wright. Ann. 

 Nat. His. 2. Ser. XIII. 

 170. t. 13. f. 2.; Br. 

 Foss. Echin. I. 132. t. 8. 

 f. 2. : t. 12. f. 9. 



Inf. Ool. 



Inf. Ool. 



Inf. Ool. 



Inf. and 

 Gr. Ool. 



Cornb. 



Cor. 



Calne, Wilts. 



Swanage, Dorset. 



Crickley Hill, near 

 Cheltenham. 



Normandy. 



Normandy. 



Leckhampon, near 

 Cheltenham. Crick- 

 ley Hill, Northamp- 

 ton. 



Wollaston, Northamp- 

 ton. 



Weymouth. 

 Hilclesheim, Hanover. 

 Nattheim, Wiirttem- 

 bere, 



