358 Illinois State Lahoratonj of Nat t( red Histonj. 



Desmo^nathns nigra, Cope, Proc. Acad. Nat, Sci. Phila., 1869, 



p. 117. 

 Desmof/natJius niger, Boulenger, Cat. Batr Sal. in Coll. 15rit. 



Mus.. 2d ed., 1882, Sal. (laudata, p. 19. 

 Dtsmognathus nigra, Davis and Rice, Bull. 111. State Lab. Nat. 



Hist., I., No. 5, 1883, p. 14; Bull. Chicago Acad. Sci., 1883. 



Length, including tail, from four to six inches. With 

 twelve costal folds. Body rather stout. Head of moderate 

 size; snout rounded. Eyes prominent, with a tubercle in the 

 anterior angle. Tongue nearly circular in outline. With two 

 series of pores on the side, the superior of which extends from 

 the eye nearly to the tip of the tail. Tail almost cylindrical at 

 its base, compressed, and with a dorsal membranous expansion 

 distally. 



Color above and below brown or black, slightly paler be- 

 neath. Lips, palms, and soles paler. 



Length of body, G; tail, 2.8. 



Cook county. 



A specimen of this species is in the National Museum at 

 Washington, labeled as having been collected in Cook county 

 by Robert Kennicott. Outside Illinois the species is chiefly 

 confined to the coast states, and is especially abundant in the 

 mountains of Pennsylvania and farther south. It is to be 

 looked for under stones in running water. Hallowell found 

 the females distended with eggs in April, and counted as many 

 as seventy yellowish ova in the ovaries of one individual. 

 When about one and a half inches long they lose the gills. 

 The young are exceedingly active. 



Desmognathus fusca, Raf. Dusky or Painted Sala- 

 mander. 



Triturusfuscus, Raf., Ann. Nat., 1820. 



Salamandrapicta, De Kay, Nat. Hist. N. Y., I., Zool. III., Kept. 



and Amph., 1842, p. 75. 

 Salaniandra quadrimarut((ta, Ilolbr., N. A. Herp., 1842, V., 



p. 49, pi. 13. 

 Desmognathus fuscus, Baird, Jour. Acad. Nat. Sci. Ptiila., 2d 



Ser., 1849, 1., p. 285.— Cope, Proc. Acad. Nat. Sci. Phila., 1869, 



p. 115. 

 Plethodon fuscus, Smith, Tailed Amphibians, 1877, p. 69. 



