NO, 3 CASSIDULOID ECHINOIDS — KIER 211 



be Eocene because it was found in a marly limestone rich in the 

 pincers of Callianassa. However, as discussed by Fourtau (1909), 

 these beds are not Eocene, but Campanian. 



Location of type specimens. — The holotype is in the Museum 

 National d'Histoire Naturelle, Paris, and the specimens figured by 

 Cotteau (1890, pi. 245, figs. 6-9; pi. 246, figs. 1-6) are in the Lam- 

 bert Collection at the Sorbonne, Paris. 



Remarks. — Cotteau's figure (1890, pi. 246, fig. 6) of the floscelle 

 is in error in showing double pores in the phyllodes. 



Synonym of GITOLAMPAS 



Bothriolampas Gauthier in Fourtau, 1899. Mem. Inst. £gypt., vol. 3, p. 652. 

 Type species, Pliolampas tunctana Gauthier by subsequent designation, Lam- 

 bert and Thiery (1921, p. 369). 



Remarks. — Bothriolampas is a junior objective synonym of Gito- 

 lampas, as both genera have the same type species. Evidently Gauthier 

 forgot that he had already erected a genus for G. tunetana. 



Synonym of GITOLAMPAS 



Echanthus Cooke, 1942. Journ. Paleont., vol. 16, p. 37. Type species by original 

 designation, Echinanthus georgiensis Tvvitchell. 



Remarks. — Cooke erected this genus for Echinanthus Desor (1858) 

 non Leske (1778). Mortensen (1948, p. 242) misunderstood the 

 basis for Cooke's action and stated that Cooke had considered the 

 type species of his Echanthtts generically distinct from the species 

 that Mortensen thought to be the type species of Echinanthus Desor. 

 Cooke states that Echanthus is probably synonymous with Echinan- 

 thus Desor but erected the new genus because Desor's Echinanthus 

 was preoccupied. 



Echanthus is herein considered a synonym of Gitolampas, a genus 

 many workers have considered a subgenus of Echinanthus Desor. 

 The type species of the two genera are very similar and certainly 

 congeneric. Both have similar shape, with the greatest width pos- 

 terior to the center and a pointed posterior extremity ; broad petals, 

 with tendency to close distally, periproct longitudinal, marginal or 

 slightly inframarginal, transverse peristome, and similar floscelle. I 

 have included a drawing of the phyllode of Gitolampas georgiensis 

 (text fig. 172), and photographs (pi. 40, figs. 3-5) of the holotype. 



