•VVEST AFEICAN PROYINCE. 69 



*A(iacna edentula, Pallas. C. 



„ plicata, Eicli. C. B. (Dniester, xVkerman, Odessa). 



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

 *Mytilus edulis, L. C. C. (not in IMiddeudorfPs list). 



„ latus, Cliemn. B. 

 *Dreissena polj-morpha, Pal. C. B. 



Paludiuella stagnalis, L. (pu.-illa Eicli.) C. B. (Odessa) Ochotsk. 

 * „ variabilis, Eicli. C. 

 *Xeritina litnrata, Eicli. C. on sea-weed. 

 *Ei^soa Caspia, Eicli. C. 



„ oblonga, Dcsm. B. 



), cylindracea, Kryu. B.* 



TliG following species are described by Eicliwald, from tlie 

 BtepiDO lime-tone. (Miu'chison, Eussia, p. 297.) 



"Paludina" Triton. Donax priscus. 



,, exigua. Mactra Caspia. Moiiodacna propinqiia. 

 Ri.-soa conus. „ Karagana. „ inteitnedia. 



„ dimidiatus. Cyclas Ustuertensis. „ Catillus. 



Bulliua Ustuertensis. Mytilus rostriformis. Adacna prostrata. 



No other inland bodies of salt water are known to have 

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

 potamia (at Sinki'a and Warka), collected by Mr. "\V. K. Loftus, 

 are si^ecies still abounding in the Persian Gulf, f 



VI. West Armci^ PnovrNCE. 



The tropical coast of Western Africa is rich in conchological 

 treasures, and far from being wholly explored. The researches 

 of Adanson.:!^ 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. 

 Gidnece, coll. Tarns. Cassel, 1853. 



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

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

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



* The Veluthia {Limner ia) Caspiensis. A. Ad. \ras founded on a specimen of 

 LimrKTa Gclleri, Midd. (1851), from Bernaoul, 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 Mclania costata and JIJ. Jordcmica, 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- 

 clatm-e of Linx.eus, and employing instead the most barbarous chance-combinationa 

 of letters he could invent. 



§ Appendi.\ to Captain Tuckey's Narrative (1318), by Dr. Leach. 



