384 PROCEEDINGS OF THE ACADEMY OF [1893. 



Although this species is smaller than S. bilineatus, it is more 

 robust and less sepsiform in its proportions. In life, the white belly 

 constitutes a conspicuous color-character. 



Typhlotriton spelseus Stejneger, Proceeds U. S. Natl. Museum, Vol. XV, 1893. 



I obtained several specimens of this interesting species from the 

 proprietor of the Marble Cave, Mr. T. Powell. In spirits it has a 

 pale yellow color, as described by Dr. Stejneger, but in life it is 

 white. It occurs in a stream that flows at least 300 feet below the 

 surface. I examined this and other parts of the cave, which is a 

 very extensive one, and observed very little life in it. It seems 

 difficult to understand how the salamander, which is by no means 

 small, could find subsistence, but Mr. Powell states that a species of 

 " fly" inhabits the cave, and is sometimes very abundant. 



The vertebrse, as observed by Stejneger, are opisthoeoelous, 

 although the ball of the centrum remains cartilaginous. The tarsus 

 is cartilaginous, although the elements are distinct. These consist, 

 as in Desmognathus, of ulnare, intermedium, radiale, centrale, and 

 five tarsalia, of which the first is on the inner border of the sole. 

 The location of the genus Typhlotriton in the Desmognathidaa by 

 Stejneger is thus justified, and the addition of the genus Thorius to 

 the same family, as proposed by Boulenger, is sustained. 



The temporal muscle divides a short distance above its insertion 

 in the coronoid process of the mandible after passing under a malar 

 ligament. The inferior and most robust belly is attached to the infer- 

 ior part of the parietal bone. The superior and more slender belly 

 passes over the parietal bone, lying in a groove between the inferior 

 belly and the low sagittal angle of the skull, and is inserted into 

 the spine of the atlas vertebra, as is the case in the genus Desmog- 

 nathus. It differs from the corresponding muscle in Desmognathus 

 in not developing a tendon where it passes over the parietal bone, 

 the point of insertion into the atlas only showing this character. 



REPTILIA. 



Sceloporus undulatus Daud. 



Crotaphytus collaris Say. C. baileyi Stejneger, North American Fauna, 1890, p. 103. 



This species is quite abundant near Galena, Missouri. It has not 

 been hitherto noted as existing in Missouri, the nearest localities 

 recorded being the Neosho River, I. T., and the Arkansas River in 

 Western Arkansas. 



