WEST APBICAN PROVINCE. 69 



•Adacna edentula, Pallas. C. 



„ plicata, Eich. C. B. (Dniester, Akennan, Odessa). 



„ colorata, Eich. C. B. (Azof, Dnieper). 

 •Mytilus edulis, L. C. C. (not in Middendorffs liat). 



„ latus, Chemn. B, 

 •Dreissena polymorpha, Pal. C. B. 



PaludineUa stagnalis, L. (pusilla Eich.) C. B, (Odessa) Ochotsk. 

 * „ variabilis, Eich. C, 

 •Neritina liturata, Eich. C. on sea-weed. 

 ♦Rissoa Caspia, Eich. C. 



„ oblonga, Desm. B. 



„ cylindracea, Ki-jti. B.* 



The following species are described by Eichwald, from tlie 

 steppe limestone. (Murchison, Eussia, p. 297.) 



" PaJudina " Triton. Donax priscns. 



„ exigua. Mactra Caspia. Monodacna propinqua. 

 R soa conus, „ Karagana. „ intermedia. 



„ dimidiatus. Cyclas Ustuertensis. „ Catillus. 



Bullina Ustuertensis. Mytilus rostriformia. Adacna prostrata. 



No other inland bodies of salt water are known to hayo 

 peculiar marine shells ; those of the modern deposits, in Meso- 

 potamia (at Sinkra and Warka), collected by Mr. W. K. Loftus, 

 are species still abounding in the Persian Gulf.f 



YI. West Aerican Pboyikce. 



The tropical coast of Western Africa is rich in conchological 

 treasures, and far from being wholly explored. The researches 

 of Adanson4 Cranch (the naturalist to the Congo expedition§}, 

 and the ofiBcers of the Niger expedition, have left much to be 

 done. Dr. Dunker has described 149 species in his Index Moll. 

 Ouinece, coll. Tarns. Cassel, 1853. 



At St. Helena, Mr. Cuming collected 16 species of sea-shells, 

 7 of them new. Littorina Helence is found on the shore of St. 

 Helena, and L. miliaris and Nerita Ascensionis, at Ascension. 



* The Velutina (Limneria) Caspiensis. A. Ad. was founded on a specimen of 

 Limnaa Gebleri, Midd. (1851), from Bemaoul, Siberia. 



t A species of coral {Porites elongata, Lam.), now living at the Seychelles, has been 

 eaid to be found in the Dead Sea (v. Humboldt's Views of Nature, Bohn ed. p. 260); 

 also Melania costata and AJ. Jordanica, according to M. Schubert. 



% Hist. Nat. de Senegal, 4to. Paris, 1757. This able but eccentric naturalist 

 destroyed the utility of his own writings by refusing to adopt the bi-nomial nomen- 

 clature of LixN^us, and employing instead tlie most barbarous chance-combinations 

 of letters he could invent. 



% Appendix to Captain Tuckey's Narrative (1818), by Dr. Leach. 



