016 MR J. W. GREGORY ON THE MALTESE FOSSIL ECHLNOIDEA. 



Remarks. — This species differs from P. affmis, Laube,* from the Leithakalk, in 

 several characters; in the Austrian species the length is greater than the width, the 

 apical disc is more posterior, and the posterior border overhangs the anus, instead of 

 being vertical. From P. callosus, Manz.,{ from the Bologna Schlier, and the Molassa 

 serpentinosa of Montese and Africa, it differs in the greater depth of the anterior furrow 

 in P. callosus, and in the lower elevation of the posterior margin. The species is in 

 some ways more allied to P. altus (Ag.), but the differences between them have been 

 already pointed out. 



Genus Schizaster, L. Agassiz, 1847. 



Species l. Schizaster parkinsoni (Defrance), 1827. 



Synonymy — 



Spatangus lacunosus (pars), Parkinson, 1811, Organic Remains, iii. p. 29, pi. iii. f. 12. 

 ,, parkinsoni, Defrance, 1827, Did. Sci. Nat, t. 1. p. 96. 



„ „ C. Desmoulins, 1837, " 3 re Mem. Ech.," Actes Soc. Linn. Bordeaux, ix. p. 240. 



Schizaster „ Agassiz and Desor, 1847, Cat. rais. Ann. Com. Sci. Nat. Zool. (3), viii. p. 22. 



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



pp. 266, 268, pi. v. f. 3. 

 ,, „ G. Meneghini, 1857, Paleont. He de Sardaigne, p. 534. 



„ „ E. Desor, 1858, Syn. Ech. foss., p. 392. 



„ ,, T. Wright, 1864, "Foss. Echinidaj Malta," Quart. Journ. Geo!. Soc, xx. p. 484. 



P. Fisher, 1866, iu " Tchihatcheff Asie Mineure," Paleont., p. 310. 

 „ ,, G. L. Laube, 1871, "Ech. cesterr.-ung. ob. Tertiarabl.," Abh. k. k. geol. Reichs., 



v. p. 70. 

 „ „ G. Cotteau, 1875, "Descrip. Ech. tert. iles St Barth. et Ang." K. Svensk. Vet. 



Ak. Handl., xiii. No. 6, p. 6. 

 „ „ G. Cotteau, 1876, "Ech. tert. iles St Barth. et Ang.," Bull. Soc. geol. France, 



(3), v. p. 130. 

 ,, ,, G. Cotteau, 1877, "Faune tert. Corse," Ann. Soc. Agr. Lyons (4), ix. p. 303, 



304. 

 „ cf. „ W. Dames, 1877, "Ech. vicent. veron. Tertiarablag." Palaint., xxv. p. 64. 



„ ,, G. Cotteau, 1877, "Observ. sur les foss. terr. tert. moy. Corse," Bull. Soc. geol. 



France (3), vi. p. 74. 

 , : ,, G. Cotteau, 1882, "Desc. Ech. foss. Cuba," Ann. Soc. geol. Beige, ix. Mem., 



pp. 38, 41. 

 ,, goldfussi, L. Agassiz, 1840, Cat. Syst. Ectyp. Ech. foss. Mus. Neoc, p. 3. 

 ,, ,, E. Requien, 1848, Cat. coquilles Corse, p. 96. 



,, raulini, Agassiz and Desor, 1847, Cat. rais. Ann. Sci. Nat. Zool. (3), viii. p. 22. 



Types.—?. 89. P. 94. R. 23. R. 24. R. 82. 



Distribution. — Malta — Globigerina Limestone (especially bed b). Corsica — Sta Manza 

 (Zone a P. bonifaciensis). Sardinia — Porto Torres. France — Martigues, St Paul trois 

 Chateaux (Helvetian). Italy — Schio Schichten? (Aquitanian). Austria — Kalksburg, 



* Laube, op. cit., p. 68, pi. xvii. f. 2. 



t A. Manzoni, " Ech. foss. Schlier Bologna," Denksch. k. Ak. Wiss. Wien, xxxix., Abt. 2, p. 155, 156, pi. i. f. 4-7, 

 pL ii. f. 8, 9. 



