999 



Baur.] ^— ^ [May 5, 



Pseudemys concinna LeC, Gray. 



This species was described by LeConte* under the name of Testudo 

 concinna LeC. LeConte sa3's : "Inhabits the rivers of Georgia and 

 Carolina, where the beds are rocky. I have never seen thein below 

 Augusta on the Savannah, or Columbia on the Congaree." We have 

 therefore to consider specimens from these localities as typical. 



The upper jaw in this species is smooth, not notched, and without lat- 

 eral cusps ; the lower jaw is serrated and has a sharp median cusp on the 

 symphysis. This species is characterized by its broad and low shell and 

 its small head. 



Pseudemys hieroglypliica Holbrook. 



This species was described by Holbrook, in 1836, in the fiist edition of 

 his Herpeiology (Vol. i, p. 47, PI. ii). The type now in the collection of 

 the Philadelphia Academy came from the Cumberland river, Tenn. 



A species very close to Pseudemys concinna LeConte, but distinguished 

 by its elongated, narrow shell and its head, which is still smaller. The 

 yellow stripes and dots on the head and neck are also very much more 

 expressed than in Pseudemys concinna LeConte. 



Pseudemys labyrinthica Lesueur, MSS., C. Dumeril. 



Boulenger places this species as a synonym of Mnlaclemys geograpJdca, 

 but there cannot be any doubt that it belongs to Pseudemys It was origi- 

 nally described by C. Dumeril, in Gatalogue methodique de la Collection des 

 Reptiles, Paris, 1851, p. 13. The tj^pe specimens collected by Lesueur 

 came from the Wabash river. 111., probably from New Harmony. 



That it cannot be Malaclemys geograpJdca is at once seen from the de- 

 scription of the jaws : " Machoire inferieure dentelee, munie ason extre- 

 mity anterieure d'un crochet venant se loger dans une petite echancrure 

 de la superieure." Dumeril correct!}' compares it with P. hieroglyphica 

 Holbr., and says : "Cette E. differe de la precedente [hieroglyphica] par 

 la forme de sa carapace, dont I'ovale est moins allonge, et par I'elevation 

 quelle presente sur la ligne vertebrale, qui est au contraire d^primee dans 

 I'E. hieroglyphique, et enfln par le volume preportionellemeut plus con- 

 siderable de la tete." 



This species shows the coloration of head and neck of P. hieroglypldca, 

 but the head is larger and the shell more as in P. mobiliensis, but by far 

 not so large. 



I have examined two heads of this form, from Illinois, preserved in 

 alcohol ; it is mentioned as Pseudemys concinna LeC. by II. Garman in 

 "Notes on Illinois Reptiles and Amphibians" (Illinois State Laboratory 

 of Nut. Hist., ])p. 185, 186). Tliis species is said to be found at jMt. Car- 

 mel, 111. 



* LeConte, J., "Description of the Species of North American Tortoises," Ann. Lye. 

 Nal. Hist., New York, Vol. iii, Febr., 1830. 



