AMBLYSTOMID^E3. LXXXIV. 195 



Blackish brown, gray-speckled; tail short, compressed, 

 2|- in length; head very broad; body short and squat. 

 Southern, N. to S. Ills, 

 ff Costal grooves 11. 

 $ Sole with one indistinct tubercle, or none. 



2. A. opacum, (Gravenhorst) Baird. OPAQUE SALA- 

 MANDER. Black above, with bluish gray bars; belly dark 

 blue; no dorsal furrow, no enlarged pores on the head; 

 tail 2|- in total length; body stout. Penn. to Wis. and S. 

 A handsome species. (S. fasciata, Green.) 



3. A. punctatum, (L.) Baird. LARGE SPOTTED SALA- 

 MANDER. Black above with a series of round yellow 

 spots on each side of the back; body broad, depressed 

 and swollen; skin punctate with small pores, from which 

 exudes a milky fluid (Cope)\ two or three clusters of 

 enlarged pores on head; a strong dorsal groove; tail 2^ 

 in length; large. U. S., E. of the Rocky Mountains. 

 (A. venenosa and submolacea, Auct.) 



4. A. conspersum, Cope. SMALLER SPOTTED SALA- 

 MANDER. Lead colored, with one or two series of small 

 yellow spots along sides; no dorsal groove; skin smooth; 

 tail 2 in length; small. Penn. to Ga. 



ft Sole with two distinct tubercles. 



5. A. bicolor, Hallowell. TWO-COLORED SALAMANDER. 

 Olive brown, yellowish below, rising in blotches on the 

 sides; a few large yellowish spots above; limbs banded; 

 tail yellow with brown spots. New Jersey. 



Iff Costal grooves 12. 

 a. Large species ; sole with two distinct tubercles. 



6. A. tigrinum, (Green) Baird. TIGER SALAMANDER. 

 Chiefly brown with many yellow spots, about as large as 

 the eye; body thick and strong; the head comparatively 

 long and narrow; tail shorter than head and body; color 



