ANODONTA. 



75 



VIII. SUBGENUS ANODONTA. 1 



E- 



o 

 p 

 o 

 a 



TRIANGULAR. 



*Waklamatensis. Lea. Cooper. Han. 

 An. triangularis. Trash. 

 An. rotundovata. Trash. 

 trigona. Spix. Hupe. Han. 



OVAL. 



*magnifica. 2 Lea. Han. 



Symp. magnified. Lea. Chenu. 



An. rotundatus. Sivain. 



An. aurata. Kust. 



An. magnijica. Sci 'trench. 3 



*Woocliana. Lea. Han. 

 Symp. Woodiana. Lea. 



*Benedictii. Lea. Adams. Dehay. 

 Stimpson. Han. 



f OVAL. 



Symp. Benedictensis. Lea. 

 An. cultrata. Gould. 



*Xuttalliana. Lea. Han. 



*Californiensis. Lea. 



SUBROTUND. 



*rubicunda. Led. 



OBOVATE. 



*crispata. 4 Lam. Han. 

 An. glauca. Goulds 

 An. puberula. Goidd. 



*tortilis. Lea. 



1 As Bruguiere first separated this group from Unio, and called it Anodontites, it ought to be at least 

 mentioned if his name be not adopted. Anodonta is now so universally used that it might be doubted 

 if it should be changed. Bruguiere published in Ency. Math, in 1792. Poli, in his great work, sub- 

 sequently reunites Unio and Anodonta. H. and A.Adams give the following subgenera: Symphynota, 

 Lea, Lamproscarpha, Swain., Patularia, Swain. 



a Dr. Gray, in Griffith's Cuvier, PI. 24, Fig. 2, gives a figure, without description, of a shell, under 

 the name of Unio tenuis, which he thinks is my An. magnified; but it appears to me to be my Dipsas 

 discoidea. It is figured with the linear tooth of Dipsas. 



3 The figure given by Dr. Schrenck in Reisen und Forschungen im Amur-Lande is not my magnified. 

 I therefore propose to call it Schrenkii. 



* With some hesitation, I have placed this and tortilis under the division plicate, as the folds or 

 crimples are so small as almost to require a lens. But to place them in the division of "smooth" shells 

 would be, I think, more objectionable. 



6 In letter of April 7, 1855, Dr. Gould says he has changed glauca (being preoccupied) to puberula, 

 and that it belongs to Monocondylcea, O'Orb. 



