552 PROCEEDINGS OE THE NATIONAL MUSEUM. vol. xxxv. 



color is much darker than at any previous stage. The lateral row of 

 yellow spots is indistinct and the pale stripe is also reduced. On the 

 top of the head the pigment is spread in an apparently uniform 

 sheet, the individual specks not being distinguishable; on the sides 

 they can still be made out with a little magnification and the tail is 

 still somewhat mottled, although the pale areas are reduced. 



Owing to absence at this time, no completely transformed young 

 from this pond were obtained, and those which had been kept in the 

 house died. On July 10 none could be found either in the pond or 

 under the logs and stones of the neighboring woods. Some larvae 

 were found, however, in another pond on August 1 and one of them 

 was kept until a w T eek later, when it had transformed. It died before 

 adult coloration had been assumed. At this time the gill-slits are 

 still open, but the external gills have disappeared, as has also the 

 " fin " or keel of the tail. The color is about the same as in the last- 

 mentioned specimen, but the pale spots of the sides are more distinct 

 (probably an individual character) and the dark color extends 

 entirely around the tail. 



AMBYSTOMA PUNCTATUM (Linnaeus). 

 SPOTTED SALAMANDER. 



Quite common. It was taken only in the woods, either under logs 

 or stones. Several were kept in captivity at different times. They 

 ate earthworms greedily, but did not touch beetles or ants. 



Measurements of an adult specimen : Length, 190 mm. ; snout to 

 axilla. 36; snout to groin. 83. Costal grooves, 11. Six spots on the 

 head bright, deep orange. A row of about nine lemon-yellow spots 

 on each side from head to base of tail, the spots on tail irregular and 

 some of them from the two rows confluent; limbs also spotted. In 

 all individuals of this species which were seen, the spots on the head 

 were deep orange, but the number so colored varied from four to 

 seven. An adult female taken on May '23 had the ovaries filled with 

 quite large eggs, 



AMBYSTOMA TIGRINUM (Green). 

 TIGER SALAMANDER. 



A single specimen was caught in a mouse trap set at the entrance 

 to a small sink hole early in December. Total length, 230 mm.; 

 snout to axilla, 38; snout to groin, 87. Color (in life), glossy blue- 

 black, with many small spots of lemon yellow on back; sides with the 

 yellow predominating; belly, pale yellowish brown, spotted with 

 lemon. 



