MR J. W. GREGORY ON THE MALTESE FOSSIL ECHINOIDEA. 623 



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



pp. 312-14. 

 „ „ Th. Fuchs, 1885, " Gliederung unt. Neogen Mittelmeers," Zeit. deut. geol. Ges., 



xxxvii. p. 157. 

 Toxobrissus „ E. Desor, 1858, Syn. Ech. foss., p. 400, pi. xlii. f. 6-8. 



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



p. 487. 

 „ „ G. Mazzetti, 1879, Ann. Soc. Nat. Modena, xiii. p. 188. 



„ „ A. Manzoni, 1880, "Ech. foss. Plioc," Atti Soc. Tosc. Sci. Nat, iv. p. 334. 



Type.— Brit. Mus., E. 1583. 



Distribution. — Malta — Globigerina Limestone. Corsica — Sta Manza (lower beds), 

 and Zone a P. cristatus, and Zone a Cerites et Pleurotomes. Italy- — Castell Arquato 

 (Pliocene?); Modena (Moll, marmosa). Cyprus — Hagia Pliylla (Mioc). 



Remarks. — This species appears most closely to resemble some varieties of B. ottnan- 

 gensis, Hcernes,* especially some of those figured by M. de LoRiOL,t but the confluence of 

 the lateral ambulacra is a very distinctive feature in the Maltese species. 



Genus SpatangUS, Leske, 1778. 



Species 1. SpatangUS delphinus, Defrance, 1827. 

 Synonymy — 



Spatangus delphinus, Defrance, 1827, Diet. Sci. Nat, t. 1., p. 96. 

 „ ,, Blainville, 1834, Man. Actinol., p. 204. 



„ „ C. Desmoulins, 1837, 3 me " Mem. Ech.," Actes Sdc Linn. Bordeaux, ix. p. 256. 



,, ,, L. Agassiz, 1840, Cat. Cyst. Ectyp. Ech. Foss. Mus. Neoc, p. 2. 



,, ,, Agassiz and Desor, 1847, Cat. rais. Sci. Nat. Zool. (3), viii. p. 7. 



„ „ E. Desor, 1858, Syn. Ech. foss., p. 421. 



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



pp. 488, 489, pi. xxii. f. 4. 

 „ „ P. de Loriol, 1875, "Ech. Tert. Suisse," Mem. Soc. pal. Suisse, ii. pp. 134, 135, 



pi. xxiii. f. 1. 

 „ „ G. Mazzetti, 1882, " Ech. foss. Montese," Ann. Soc. Nat. Modena (2), xv. p. 115, 



pi. iii. f. 5. 

 „ desmaresti, T. Wright, 1855 (won Goldf.), "Foss. Echinod. Malta," Ann. Mag. Nat Hist. 



(2), xv. p. 104, 272-3. 



Type.—K. 20. 



Distribution. — Malta — Upper Coralline Limestone and Greensand. France — St Paul 

 trois Chateaux (Helvetian). Switzerland — Les Verrieres (Helvetian). Italy— (?) Montese 

 (Langhian, serp. molassa). 



Remarks. — This species has often been regarded as synonymous with S. corsicus, Des., 

 but M. Cotteau J regards them as quite distinct, and enumerates a series of characters 



* E. Hcsrnes, "Die Fauna des schliers von Ottnang," Jahrb. h. h. geol. Reichs., xxv., 1875, pp. 389-91, pi. xii. 

 f. 4, pi. xv. f. 2-7. 



t P. de Loriol, " Description des Echinides des environs de Camerino (Toscane)," Mem. Soc. Phys. Hist. Nat. Geneve, 

 xxviii., No. 3, 1882, pi. iii. f. 4-7. 



% "Faune tert. Corse," Ann. Soc. Agric. Lyons (4), ix., 1877, p. 340. 



