WEST APEICAN PEOVIKTCE. 69 



•Adacna edentula, Pallas. C. 



„ jdicata, Eich. C. B. (Dniester, Akerman, Odessa). 



„ colorata, Eich. C. B. (Azof, Dniepei-). 

 •Mytilus edulis, L. C. C. (not in Middendorff's list). 



„ latus, Chemn. B. 

 •Dreissena polymorpha, Pal. C. B. 



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

 * „ variabilis, Eich. C. 

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

 ♦Eissoa Caspia, Eich. C. 



„ oblonga, Desm. B. 



„ cylindracea, Kryn. B.* 



The following species are described by Eicbwald, from the 

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



" Paludina " Triton. Donax priscus. 



„ exigua. Mactra Caspia. Monodacna propinqua. 

 Ei.soa conus. „ Karagana. „ intermedia. 



„ dimidiatus. Cyclas Ustuertensis. „ Catillus. 



Bullina Ustuertensis. Mytilus rostriformis. Adacna prostrata. 



No other inland bodies of salt water are known to haye 

 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 Aeeican Peovii^ce. 



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 officers of the Niger expedition, have left much to be 

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

 Guinece, coll. Tarns. Cassel, 1853. 



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

 7 of them new. Littorina Helenoe 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 

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

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



X 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 LinNjEus, and employing instead the most barbarous chance-combinationa 

 of letters he could invent. 



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



