14 



GEOLOGICAL MEMOIRS. 



At Nizetti, not far from Aci Castello, 76 species have been col- 

 lected (/. c. p. 262). The following is the result of comparison : — 





Species not now in Mediterranean. 



Species now extinct. 



26 Conchifera 



1, or 4 per cent. 

 4, „ 8 „ 



0, or per cent. 

 4, M 8 „ 



50 Gasteropoda 



76 Mollusca 



5, or 6 per cent. 



4, or 5 per cent. 





Near Melazzo, of 98 species (/. c, p. 263) we have 4? (4 per cent.) 

 absent in the Mediterranean, and three totally extinct. Between 

 Stilo and Monasterace in Calabria, and near the latter place, I 

 hastily collected 22 species *, of which 17 (77 per cent.) are extinct ; 

 and in the district of Calabria between Catanzars and the ancient 

 Crotona near Cutro, St. Mauro, Sta Severina, Scandali, and even 

 Crotona, I collected 69 species (/. c. pp. 263, 264), of which 32 (46 

 per cent.) are not now Mediterranean species, and 30 (43 per cent.) 

 are extinct. 



In the upper part of Reggio near the spot * ai Nasiti,* and near the 

 village of Terreti, about two or three leagues from the shore, and at 

 a height above the sea varying from 1500 to 1800 feet, I found 24 

 species (/. c. p. 264), of which 1 1 (50 per cent.) are absent from the 

 Mediterranean, while 9 (40 per cent.) are extinct. 



In the valley of Lamato, below Tiriolo and near the high road, we 

 have 107 species, including in this group 28 marked by M. Scacchi 

 only as from the Gulf of Euphemia (/. c. pp. 264, 265). Of these 





Species absent in the Mediterranean. 



Species now extinct. 



52 Conchifera 



19, or 37 per cent. 

 3 

 19, „ 37 „ 



19, or 37 per cent. 

 3 

 18, „ 35 „ 



3 Brachiopoda 



52 Gasteropoda 



107 Mollusca 



41, or 38 per cent. 



40, or 38 per cent. 





Near his native city of Gravina in Apulia, M. Scacchi has col- 

 lected 173 species (/. c. p. 265). Of these 



' Species absent in the Mediterranean. Species now extinct. 



1 1 



91 Conchifera 



19, or 20 per cent, 16, or 17 per cent. 

 24, „ 30 „ 22, „ 27 „ 



82 Gasteropoda 



173 



43, or 25 per cent. | 38, or 22^ per cent. 



* Enum. vol. ii. p. 264. 



