30 ON THE ZOOLOGICAL POSITION OF TEXAS. 



Diemyctylus oniniatus Eaf., subsp. meridionalis Cope. This new name 

 is introduced for a form of this genus which has definite characters and 

 a special geographical range. It has the longer digits and low cranial 

 crests of the D. miniatus, and agrees in color with the variety viri- 

 desccns. From both forms it differs in the absciuce of red spots from 

 the dorsal region, which is instead covered with rather large black 

 spots, which continue on the tail. The ground above is olive; below it 

 is yellow, which is marked with numerous small black spots. A char- 

 acter which appears to be of importance is seen in the fore foot of the 

 only specimen in my possession. The outer toe is more than half as 

 long as the i)enultimate, while in the varieties viridescens and miniatus it 

 is less than half as long. 



The first specimen of this form which I met with was sent to the 

 Smithsonian Institution from Matamoras, Mexico. G. W. Marnock finds 

 it in the tributaries of the Medina Eiver and southward, and it has not 

 been found east of that region. I did not see it in the plateau region. 



I may mention here that the presence of the temporal pits cannot be 

 used as a definition of the genus Diemyctylus, since they are as often 

 wanting as present. 



PletJiodon glutinosus Green. From the first plateau as far south as 

 Helotes. 



Amhlystoma microstomum Cope. Abundant near Dallas; also from 

 Houston. 



Amhlystoma opacum Grav. From Wichita County, near the Eed 



Eiver ; Jacob Boll. 



PISCES. 



PERCOMOKPHI. 



Boleosoma phlox sp. nov. This species has the physiognomy of a 

 PceciUchthys, but the technical characters of Boleosoma. The mouth is 

 terminal, and the superior arcade extensively projectile. The soft dor- 

 sal is considerably longer on its base than the anal, and the cheeks and 

 opercles are smooth. The lateral line is straight, and does not extend 

 beyond the point below the middle of the second dorsal fin. The second 

 dorsal is elongate and the spines are rather long. Fin radii: D. X-12; 

 A. II-5 ; Y. 1-5. The anal spines are well developed, and the first is 

 stouter and a little longer than the second. The dorsal fins are sepa- 

 rated by the width of a scale. Scales 5-52-8, present on the belly, rudi- 

 mental or wanting on the nape and breast. The mucous tubules are 

 strong, extending from the lateral line above the operculum and orbit to 



