48 



SALAMANDRIDJE. 



11. Ambly stoma macrodactylum. 



Ambystoma macrodactyla, Baird, Journ. Ac. Philad. (2) i. p. 292, 



and U.S. Expl. Surv. xii. part ii. pi. 31. f. 3. 

 Amblystoma macrodactylum, Cope, Proc. Ac. Philad. 18G7, p. 193 ; 



Strauch, Salam. p. 65. 



Palatine teeth in three [or four] series, the central largest, 

 separated from the others by a considerable interval, together form- 

 ing a line, slightly angular anteriorly, where they reach to about 

 opposite the centre of the choanae, laterally passing a little the 

 outer margin of the choanae. Tongue longitudinally oval, plicae 

 radiating from behind. Head rather large, depressed, and a little 

 longer than broad ; eyes prominent. Body cylindrical-depressed. 

 When adpressed along the body, the limbs almost meet. Toes long. 

 Carpal and tarsal tubercles indistinct. Tail somewhat compressed, 

 subround. Skin smooth ; twelve costal grooves. Ground-colour 

 dark brown ; a broad light dorsal band ; sides and lower surfaces 

 sprinkled with greyish. From snout to cloaca 58 millim. 



Oregon ; California. 



a. 5 ? Oregon. Smithsonian Institution [P.], 



12. Amblystoma paroticum. (Pj,ate II. rig. 3.) 



Amblystoma paroticum (Baird), Cope, Proc. Ac. Philad. 1807, 

 p. 200 ; Strauch, Salam. p. 65. 



Palatine teeth in four scarcely interrupted series, the central 

 forming a very open angle, the lateral extending externally be- 

 yond the outer border of the choanae. Tongue small, circular; 

 plicae radiating from behind. Head large, depressed, about as broad 

 as long, greatest width at angles of jaws, considerably constricted 

 at the neck ; snout rounded, without canthus rostralis ; eyes large, 

 very prominent. Body rounded, rather short, twice and two thirds the 

 distance from snout togular fold. Limbs strong ; adpressed against the 

 body, the longest toe reaches the wrist-joint ; fingers and toes 

 moderate, depressed, latter more equal in length than in the other 

 species of the genus ; carpal and tarsal tubercles indistinct Tail a 

 little longer than head and body, strongly compressed, keeled, ending 

 in a point. Skin smooth ; sides corrugated ; a distinct, large paro- 

 toid gland ; a strong gular fold ; a groove from eye to latter ; eleven 

 costal grooves. Uniform dark reddish brown, paler beneath. 



Total length 144 millim. 



Prom snout to cloaca 69 „ 



Head 16 



Width of head 15 „ 



Fore limb 23 „ 



Hind limb 25 „ 



Tail 75 „ 



Vancouver's Island and Washington Territory. 



a. c?? Vancouver's Island. Lieut.-Col. Hawkins [C.]. 



