UNIO. 



Unio 



Unio 



Uaio 



Unio' 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



Unio 



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Unio 



Pfeifferi. Dunlcer. 

 Philippii. Dup. 

 pinax. Sen. 

 'plagiosoma. Ben. 

 planivalvis. Morelet. 

 plombarius. Villa. 

 porrectus. Con. 

 prasinatus. Con. 

 preciosus. Fer. 

 pruneosus. Ziey. 

 psoricus. Morelet. 

 Pugio. .Z?e?i. _Z?fa?i. 

 pulchellus. Fer. 

 purpuriatus. ^ay. 

 raclula. Sen. Elan. 

 rectilinearis. Sow. 

 Reyniesii. J^i'c/t. 

 Rothi. Bourg. 

 Rousii. .#/>. 

 rugosus. Anton. 

 Schlegelii. Martens. 

 Schwerzenbachii. Boury. 

 Scobina. .Ben. .Bfan. 

 scutulatus. Morelet. 

 scutum. $ow;. Reeve. 

 semiplicatus. Troschel. 

 semiquadrata. *%;. 

 Seneltensis. Crass. 

 Sennaarensis. Kilst. 



smons. 

 Sitifensis. March. 

 smaragdites. Ben. 

 solidulus. Phili. 

 spheniopsis. Morelet. 

 Steveniana. Krynicki. 



Unio Taumilapanus. Cbn. 



Unio testudineus. J/w 7- /. 



Unio testudinarius. Spemj. 



Unio Theca. .Ben. .B/em. 



Unio trieinbolus. .Ben. 



Unio trirostris. Ben. 



Unio truncatosus. Potier. 



Unio truncatus. Speny. 



Unio uber. (7cm. 



Unio Valdivianus. Phili. 



Unio venustus. 1 More. 



Unio vellicatus. Reeve. 



Unio Teyheri. Menke. 



Unio Zimermani. Stentz. Potier? 



Unio . Adams. 



The following species are from the Cretaceous, 

 Tertiary, &c.: 



Unio abbreviatus. 3 Goldfuss. 



Unio abductus. Phili. 



Unio acutus. (Anthracosta. Kinfj.") Sow. 



Flem. 



Unio aduncus. *SW. Mart. 

 Unio agrqstis. Brown. 

 Unio alseformis. Brown. 

 Unio alatoides. iea. 

 Unio Alpinus. Mathe. Brown. 

 Unio ambiguus. /S'ow. 

 Unio amygdala. Brown. 

 Unio angustatus. Bronn. Mus. Stras- 



burg. 



Unio anodontodes. Noul. 

 Unio Ansticei. (Myacites. Bronn.) Sow. 



1 This name being preoccupied by me, and the name of Morelet being already used by Deshayes, I 

 propose the name of oblitus for it. 



" Deshayes, in Jacquemont's Voy. to India, t. xviii. Fig. 3, gives an Iridina (new), and the Unio 

 corrugatus, marginalis and cceruleus? without names or descriptions! 



In a catalogue of fresh water and land shells, Ferussac says that a Unio (species uncertain) was 

 found in Berg River near the Cape of Good Hope. 



* M. De Koninck, Foss. de Garb, de Belgique, has made a new genus (Cardinia) in which he places 

 abbreviatus, robustus, carbonarius, antiquus, subconstrictus, uniformis, acutus, atratus, phaseohis, and 

 tellinarius. Pictet, in Traite Palseontologie, says he has never found the family anterior to the Wealden, 

 v. iii. p. 528. 



4 Mr. King formed this genus in 1844, for the Uniones of the Coal Formation. It is supposed there 

 are forty species known. 



