LUSITANIAN PROVINCE. 368 



. Azores. Amongst the literal shells which range to the Azores, are Pedi- 

 pes, Litorina striata, Mitra fusca, and Ervilia castanea ; the other species 

 obtained there are Lusitanian. {M' Andrew.) 



The Mediterranean fauha is known by the researches of Poli, Delle 

 Chiaje, Philippi, Verany, Milne- Edwards, Prof. E. Eorbes, and Deshayes. 

 In its western part it is identical with that of the adjacent Atlantic coasts ; 

 the number of species diminishes eastward, although reinforced by a consider- 

 able number of new forms as yet only known in the Mediterranean ; and a 

 few accessions (about 30) of a different character from the Red Sea. The 

 total number of shell-bearing species is estimated at 600, viz. : — 



Cephalopoda 1 Nucleobrancbiata . . Lamellibranchiata . . . 200 



Pteropoda 13 Gasteropoda 370 Brachiopoda 10 



On the coast of Sicily, M. Philippi has found altogether 619 marine 

 mollusca, viz.: — 



Bivalves 188 Pteropoda.., 13 Gasteropoda 319 



Brachiopoda 10 Nudibranches 54 Cephalopoda 15 



Of the 522 which are provided with shells, 162 have not been found 

 fossil, and are presumed to be of post-tertiary origin, so far as concerns their 

 presence in the Medit. The remaining 360 occur fossil in the newer tertiary 

 strata, along with nearly 200 others which are either extinct or not known 

 living on those coasts ; a few of them are living in the warmer regions of 

 Senegal, the Red Sea, and the West Indies : — 



Senegal. Antilles. Red Sea. 



Lucina columbella. Lucina pennsylvanica. Argonauta hians. 



Cardium hians. Vermetus intortus. Dentalium elephantinum. 



Terebra fusca. Terebra duplicata. 



Morocco. Phorus agglutinans. 



Trochus strigosus. Niso terebellum. 



Pecten medius. 

 Diplodonta apicalis. 



Most of them, however, are of northern origin, such as : — 

 Saxicava rugosa. Tellina crassa. Ehynchonella psittacea. 



(Panopaea) Norvegica. Cyprina Islandica. Patella vulgata. 



Myatruncata. Leda pygmaea. Eulimella Scillae. 



Periploma praetenuis. Limopsis pygmaea. Buccinum undatum 



Lutraria solenoides. Ostrea edulis. Fusus eontrarius. 



Of the 523 Sicilian testacea about 35 (including 10 oceanic species) are 

 common to the West Indies — if the species have been correctly determined ; 

 28 are stated, with more probability, to be common to West Africa, including 

 Murex Brandaris and other common species ; 74, including Mnrex tritn- 

 culus, are common to the Red Sea ; Crania ringens cannot be distinguished 

 from the species found in New South Wales {BavidsonS) ; and Columoella 

 corniculum ranges from the north coast of Spain to Australia, tlie specimens 

 from these distant localities being only distinguishable as geographical 



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