54 The Ottawa Naturalist. [June 



who is the author of a paper on this subject. I had been unable 

 to obtain adults, although the Hon. F. R. Latchford in a short 

 paper /-^ " Ottawa Salamanders," in The Ottawa Naturalist, 

 January, 1877, described where several species were found. From 

 information as to habitat gathered in Prof. Wilder's papers, 

 several larva? were found without difficulty when Britannia was 

 visited on Christmas Day. On the 20th January, 1900, four adults 

 and seven larvae were collected, but as I neglected to replace the 

 cover on the aquarium, three adults escaped into the room and were 

 never found, even after most careful search. The remaining adult 

 remained in the aquarium, only because through some accident he 

 was minus a tail when found, and was thus unable to climb over 

 the edge. From the 20th January to the 12th February his tail 

 had grown 7 mm. and has since grown to date, March 5th, 1.5 cm. 

 Since specimens were obtained on the ist September, 1899, and 

 later, little opportunity has been found for observing their develop- 

 ment. The following notes on the eggs are from Prof. Wilder's 

 admirable paper, not from observation. 



The eggs of S. bilineatus may be obtained during May and 

 June. He records them as found between May 27 and June 12 

 in Massachusets; here a little later. " They are deposited in a 

 single layer on the lower side of submerged stones, each batch 

 containing from 30 to 50 eggs, generally in the more rapidly flow- 

 ing portions of the brook, attached separately to the surface of 

 the stone by gelatinous threads proceeding from the outer 

 envelope. Within the eggs the embryos lie free. When the 



stone is overturned the eggs resume their normal position The 



eggs are protected by three membranes, two that fit closely and 



an outer loose one It is by means of strings proceeding from 



this that they are attached to the surface of the stone The 



eggs are holoblastic, lack the black pigment of the frog's Q^^, and 



hatch in from 15 to 17 days The young swim actively when 



hatched, which they do early, and continue for a long time in the 

 larval state, probably two to three years." 



These Salamanders in their larval state are suitable specimens 

 for an aquarium, requiring little attention if placed along with 

 some of the water moss, Fontinalis. One placed in a jar with 

 Fontinalis last September has not been touched since, merely a 



