1914] The Ottawa Naturalist. 105 



With fish very little was done bvit to collect some Gar Pike, 

 Lepidostciis osseus and L. platostoimts and Dog Fish, Amia calva. 

 We found an adult of the latter in shallow water at the end of 

 the drainage ditch with a school of young. 



They schooled close together and occupied a space when 

 closely massed about the size of a l^ushel basket, while the old 

 one swam about near by, occasionally vanishing for a few minutes 

 but always reappearing again shortly. The Dog fish is one of 

 our most interesting forms, being a survival of a very ancient 

 type with the tail formed from the ventral fin. This peculiar 

 tail formation shows very plainly in the young, of which we 

 collected quite a number. 



Among insects a little more was done. The beautiful 

 Olive Hair-streak, Thecla damon, was verv common the latter 

 end of Hay on the Red Cedar and a considerable series was 

 collected. One of the most interesting occurrences, however, 

 in this line was the comparative abundance of Papilio a-iax. 

 The commonly given food plant for this showy butterfly is the 

 Pawpaw. This, however, does not occur on the Point and the 

 nearest clump of it is more than six miles away across a wide 

 marsh, yet we saw the species nearly every day and often 

 from two to six. They flew swiftly and were difficult to capture. 

 Those we managed to take were in almost unworn condition and 

 the majority of those seen were perfect even to the ends of 

 their long swallow tails. It hardly seems possible that all 



of these should be wanderers from the little clump of Pawpaw 

 in the main land and probably the species has another food 

 plant on the Point. Terias lisa was quite common, Colias eury- 

 theme was seen several times and taken once. 'Specimens of 

 Ltbythea bochmanni and Junonia coenea were observed and 

 indentified as certainly as possible by eye sight, but no specimens 

 were taken. 



Among the mammals of course the work was limited, by the 

 species remaining after many years of hunting and extermination. 

 All the larger land forms have disappeared, even to Skunks and 

 Raccoons, and at present the Muskrat is the largest native 

 mammal inhabiting the Point. We trapped mice extensively, 

 and found the rare Michigan or Baird's Deer Mouse, common 

 on the beaches. The Common Mole is abundant everywhere 

 in the sandv fields. The Flying Squirrels taken proved to be 

 of the small southern form, and the rabbit is the common 

 Cottontail of southern Ontario, and no hares are to be found. 



