230 Stejneger — Some Creneric Nanus t>f Turtles. 



Reptiles and Amphibia" (Ann. Philos. (ii. s.) X, p]). 193 

 seqv.) published in September, 1825, subdivided Merrem's 

 genus and fixed T. clausa definitely as the type of Ten-ap/tefte, 

 as he spelled it. Kinosternon he also adopted as proposed by 

 Spix, and in addition he instituted for 7'. odorata and T. perm- 

 sylvanica, a new genus for which he used a manuscript name 

 by Bell, viz, Sternotlierus. 



Both of the species which constitute his new genus being- 

 congeneric with the type of K!)tostern()n, Steruotherus becomes 

 an unconditional synonym of the latter. 



Thomas Bell, whose MSS. name Gray had thus been ap))r<)- 

 priating, scarcely more than a month later (Zool. Journ., II. 

 No. 7, Oct. 1825, p. 305) used the same name (though spelt 

 slightly different, Sternothaeriis) in a somewhat different sense, 

 including in it, besides 7'. odorata and the cons})ecilic T. hoscii, 

 two new species S. trifasciatus and S. leachiamis. This action 

 ties the name SternotJierus down to 7'. odorata, if the latter be 

 considered generically distinct from J\lnosfenu»i, thus antedat- 

 ing Aromoehelys. 



The genus which is now usually known as Steriiothoru.^. 

 therefore, must have another name, and Peluslos of Waglei- 

 (Nat. Syst. Amph., 1830, p. 137) becomes available with P. 

 nigricans for type.* 



The synonymies of these genera, as here mentioned, would then 

 stand as follows: 



Terrapene Merrein. 



1820. Terrapene Merrem, Tent. Syst. Amph., p. 27 (type, as 

 restricted by Gray, Sept., 1825, T. eJausa). 



1822. Therapene Scliinz, Cuvier's Thierr. Uebers., II, p. 13 

 (emend.). 



1822. Cisttida Fleming, Philos. Zool., II, 270 (no species men- 

 tioned). 



1825. Terraphene Gray, Ann. Philos. (n. s.) X, Sep., p. 211 

 (err. typogr.). 



*If Sternotherus had not been disposed of by Gray in 1825, it would 

 have stood for the genus now known as Cyrlemys, since Wagler in 1830 

 clearly restricted it to C. trifanciuta a whole year before Gray applied it 

 exclusively to Pelvsios mffriean.s. 



