ON THE ZOOLOGICAL POSITION OF TEXAS. 29 



Ryla femoralis Daudin. A specimen larger than the largest individ- 

 uals I have previously seen ; differs also in the greater extent of palma- 

 tion of the fingers, and in the coloration of the concealed surface of the 

 femur. In eastern specimens the posterior face of the femur is brown, 

 with rather small yellow spots; in this form it is yellow, with a blackish, 

 coarse reticulation, which only extends to the lower surface on the prox- 

 imal half of the thigh. The sides have a double row of small black 

 spots, which inclose a yellow baud. This is probably a subspecies, and 

 may be distinguished by the name of clirysoscelis. One specimen as 

 large as a large Hyla versicolor was taken by Mr. Boll near Dallas. 



Smilisca haudini Dum., Bibr. This Mexican species has been found 

 by Mr. Marnock in the low country southwest of San Antonio, com- 

 mencing with the San Miguel Creek, a tributary of the Medina. This is 

 its most eastern known range, that pre\4ously given by Professor Bauxl 

 being Brownsville (as Hyla vanvlietii). 



Scaj)Mopus varius Cope. Not rare in the low country from Atascosa 

 County southwest ward, according to Mr. Marnock, to whom I am in- 

 debted for specimens. This species is a true Scajyhiojnis. 



Bvfo dehilis Girard. Specimens from Mr. Marnock from west of the 

 Nueces Eiver. Specimens in my collection are stated by that gentleman 

 to have been taken near Fort Concho, and Mr. Isaac sends it from as far 

 east as the Wichita Eiver, thus greatly extending its range. It wa^ 

 originally brought from the valley of Mexico, and the Smithsonian In- 

 stitution subsequently received it from Mazatlan. Baird reports it from 

 the Lower Eio Grande. It is probably diagnostic of the Sonorau region. 



Bufo ininctatus Bd., Gird. Found near Helotes by Mr. Marnock, but 

 not known from further east. Boll found it as far north as Fort Con- 

 cho. Baird gives it from Western Texas, and I have determined it 

 from Cape Saint Lucas, Lower California. It is found as far south as 

 Guanaxuato, from which x)lace I have received it from Dr. Duges. It 

 is another Sonoran type. 



Bufo lentiginosus americanus Lee. From Dallas; Mr. Boll. This 

 form also occurs at New Orleans. The usual form of the Gulf States, 

 the typical lentifjinosus, has not yet been found in Texas. 



Bufo valUceps Wiegm. A Mexican toad found all over Southern 

 Texas. I have it from Washington and Helotes. Professor Baird re- 

 ports it from the Texan coast of the Gulf. Some specimens were sent 

 to me by Professor King, of Baton Eouge, La., whicli he believed to have 

 been taken in the neighborhood of that city. 



