THE BATRACHIA OF NOETH AMERICA. 105 



Measurements. 



In. Lin. 



Length from eud muzzle to cauthus oris 2.6 



LeDgtli from end muzzle to axilla 6. 5 



Length from eud muzzle to groiu 14 



Length from end muzzle to end tail 2 3. 75 



Length from elbow to end finger 3. 1 



Length from knee to end toe 3.7 



Ko. 4044, eleven specimens ; locality, San Antonio, Tex.; collector, J. 

 D. Graham. 



The plane front and canthus nostralis of this species form a resem- 

 blance to the G. tenebrosus, between which and C. microstomus it is 

 naturally i)laced. 



CHONDROTUS PAROTICUS Baird.* 

 Cope, American Naturalist, 1887, p. 88. 



Artibhjstoma parotictim Baird, Cope, Proc. Ac. Phila., 1867, p. 200 ; Strauch, Salam., 

 p. 65; Bouleuger, Cat. Batr. Grad. Brit. Mus., ed. ii, 1882, p. 48, PL ii, fig. 3. 



This salamander is of very i^eculiar character. It is one of the stout- 

 bodied species, in this respect about equal to A. jptmctatum, but with a 

 broader head. 



In the type specimen (4708) the skin is remarkably free from pits, 

 ])ores, and milk glands. These are found on the parotoid region, both 

 above and below the horizontal furrow from eye to side of neck, which 

 is swollen in consequence. There is also a small patch on top of head 

 bordering the orbit, a patch on the spaces between the intercostal fur- 

 rows, on the upper part of the sides, extending, though faintly, nearly 

 to the belly. Along the ridge of the tail, bordered below by an in- 

 dented line, the glands are thickly crowded. A few scattered glands 

 are seen along the back 5 elsewhere the skin is perfectly smooth and 

 glaudless, with the muscle directly beneath it, although j)robably when 

 fresh the usual shallow pits of the groui) stud the skin thickly every- 

 where, as usual. These are distinctly visible in a second specimen 

 (4709). In this also the glands are more numerous on the back and 

 extend farther down the side of the tail. 



The head is broad and depressed, considerably constricted at the 

 neck. The eyes are unusually large and prominent for the genus, sepa- 

 rated anteriorly by about twice the length of their orbits, distant from 

 the nostrils less than this length. The outer and inner nostrils are 

 respectively about equidistant by little more than one length of the orbit. 



The tongue is moderate, nearly circular, filling the rami only ante- 

 riorly and hardly more than half the width of the head. 



The teeth are in four patches, forming a transverse series, slightly an- 

 gular anteriorly, \A4iere they extend to about opposite the centers of the 

 inner nostrils. The two central patches are rather the larger, with a 

 slight interval. They extend postero-laterally nearly to the inner 

 margin of inner nostrils ; then are separated from the outer j)atches by 

 an interval nearly the width of the inner nostrils. The lateral patches 

 extend a short distance beyond the outer margin of the inner nostrils. 



* Plate 24, figs. 6,7. ~ 



