1893.] '^■^3 I Baur. 



Pseudemys floridana LeC. 



la 1830, LeConte described a tortoise from the St. John's river, in East 

 Florida, under the name of Testudo floridana. This species was recog- 

 nized as distinct by Holbroolv, in 1842, and figured (PI. viii). Agassiz 

 stated that it has to be considered a synonym of P. concinna LeC, and 

 it seems that all recent authors have followed him. 



There is no doubt that this species is distinct from Pseudemys concinna 

 LeC. and P. mobiliensis Holbr. 



The description given by LeConte is very good. The species is at 

 once distinguished by its oval form and the great elevation of the cara- 

 pace and its color. The carapace is not emarginate in front. It has a 

 very dark-brown color, with numerous irregular lines of yellow. The 

 marginals are also dark brown and have only one vertical median yellow 

 line and are without the yellow concentric lines so characteristic for P. 

 concinna and P. mobiliensis. Tlie carapace is much more arched than in 

 P. mobiliensis and nearly forms a half circle. The skull is also larger 

 than in this species and the jaws are not serrated. This species seems to 

 be restricted to Florida and Southern Georgia. 



Pseudemys texana, sp. no v. 



Agassiz mentions specimens of his Ptychemys mobiliensis "from Guada- 

 lupe mountains, Pecos river, Texas, and New Leon, near Cadereita, 

 Mexico," and also young specimens collected in Texas by Mr. G. Stolley. 



I have examined different specimens of this so-called Ptychemys mobili- 

 ensis, from Texas, and reach the conclusion that it belongs to a new spe- 

 cies of Pseudemys related to P. rubiventris LeC, which may be called 

 Pneudemys texana. As typical specimen of this new species I consider a 

 stuffed specimen, No. 246, of the Philadelphia Academy, collected by 

 Dr. Hermann in San Antonio, Texas. 



Pseudemys texana, sp. nov. 



Shell very thin behind, posterior border serrated, longitudinally rugose ; 

 nuchal long and slender ; upper shell brown, with yellow reticulations 

 similar to Pxeudemys concinna; shell not much elevated. Plastron emar- 

 ginaled behind, yellow or with brown markings. 



Skull small, similar to P. rubiventris ; upper jaw notched in the centre, 

 with a rounded tooth on each side, not so prominent as in P. rubioentris. 

 Lower jaw similar to P. rubiventris. The coloration of the head quite 

 different from the other species. A yellow longitudinal spot behind the 

 eye ; above this, a yellow line ending in a long longitudinal spot above 

 the temples ; from the lower posterior portion of the eye a yellow line 

 appears, sending a branch upwards in front of tympanic cavity, and con- 

 tinues behind on the neck. Three very strong yellow and some slender 

 yellow stripes on lower face of neck. 



Locality of type, San Antonio, Texas. 



PROC. AMER. PHILOS. SOC. XXXI. 141, 2 C. PRINTED JUNE 29, 1893. 



