.">96 MR J. W. GREGORY ON THE MALTESE FOSSIL ECHINOIDEA. 



of Practical Geology, one in that of the Geological Society, and Dr Murray has pre- 

 sented one to the British Museum. 



Species 2. Clypeaster marginatus, Lam. 18 16. 



Synonymy — 



Clypeaster marginatus, Lamarck, 1816, Anim. sans Vert, iii. p. 14. 

 „ ,, Defrance, 1817, Diet. Sci. Nat., ix, p. 450. 



„ ,, Deslongchamps, 1824, Eneycl. meth. Zoqph., p. 200. 



„ „ Marc, de Serres, 1829, Geogn. Terr, tert., p. 157. 



Blainville, 1830, Diet. Sci. Nat., Ix. pp. 197, 198. 

 „ „ Grateloup, 1836, "Mem. g^o.-zool. ours. foss. Dax," Actes Soc. Linn. Bor- 



deaux, viii. pp. 142, 143. 

 L. Agassiz, 1836, "Prod. Mon. Rad.," Mem. Soc. Neufchatel, i. p. 187. 

 ,, ,, C. Desmoulins, 1837, " 3 re Mem. Ech.," Actes Soc. Linn. Bordeaux, ix. p. 64. 



„ „ L. Agassiz, 1840, Cat. Syst. Echjp. Ech. Mus. Neoc, p. 6. 



,, ,, Fr. Holl, 1843, Handb. der Petrefactenkunde, 2nd ed., iv. p. 383. 



,, „ L. Agassiz and Desor, 1847, Cat. rais. Ann. Sci. Nat. Zool. (3), vii. p. 131. 



,, ,, E. Requien, 1848, Cat. coquilles Corse, p. 95. 



„ ,, A. Aradas, 1850, "Mon. Ech. viv. foss. Sicilia," Atti Ac. Oioen. Sci. Nat. 



Catania (2), vi. p. 214. 

 T.Wright, 1855, "Foss. Echinod. Malta," Ann. Mag. Nat. Hist. (2), xv. 



pp. 114-116. 

 „ ,, Leymerie and Cotteau, 1856, "Cat. Ech. foss. Pyrenees," Bull. Soc. g'eol. 



France (2), xiii. p. 329. 

 E. Desor, 1857, Sijn. Ech. foss., p. 242. 

 ,, ,, H. Michelin, 1861, "Mon. Clypeastres foss.," Mem. Soc. geol. France (2), vii. 



No. 2, p. 130, pi. xix. f. 1, a-e. 

 „ „ G. Cotteau, 1863, "Ech. foss. Pyre^es," Congres Scien., sess. xxviii. t. iii. 



pp. 246, 247. 

 „ ,, T. Wright, 1864, " Foss. Echinidae Malta," Quart. Journ. Geol. Soc, xx. 



p. 478. 

 „ „ A. Locard, 1873, "Faune Tsrr. tert. Corse," Bull. Soc. geol. France (3), 



i. p. 238. 

 „ „ G. Cotteau, 1877, "Faune tert. Corse," Ann. Soc. Agric. Lyons (4), ix. pp. 



263-5. 

 „ „ var. tenuipetalus, G. Seguenza, 1879, "Formaz. Terz. Reggio," Mem. R. Ac. 



Lincei (3), vi. p. 88, pL x. f. 3. 

 „ „ G. Seguenza, 1879, "Formaz. Terz. Reggio," Mem. R. Ac. Lincei (3), vi. 



p. 133. 

 „ tarbellianus, Grateloup, 1836, op. cit., Actes Soc. Linn. Bordeaux, viii. p. 142. 

 „ „ C. Desmoulins, 1837, op. cit., Actes Soc. Linn. Bordeaux, ix. p. 64. 



? „ folium, T. Wright (non Ag.), 1855, op. cit, Ann. Mag. Nat. Hist (2), xv. pp. 116, 117. 



Type.— 57. 



Distribution. — Malta — Greensand ; Dingli, Gozo. France — Mimbaste (near Dax), 

 Narosse (Landes), Touraine. Corsica — Bonifacio, Sta Manza (lower beds). Italy — 

 Reggio (Tortonian and Helvetian), Sicily. 



Remarks. — Clypeaster marginatus, with its flattened pentagonal form, sinuous 



