26 4 



THE AMERICA* XATCRAEIST. [Vol. XXXVII. 



eggs in confinement in the summer of 1899 from which young 

 snakes were finally hatched, hut I am sorry to say I did not take 

 any notes. A large specimen of the western Bull Snake (Pi'fy- 

 ophis sayi ) also laid eggs in captivity the same summer, but I 

 kept no record of these and can only say the eggs were consid- 

 erably larger than those of the Coluber obsolitus and that young 

 snakes finally hatched out from ten or twelve of them. I have 

 no record and cannot remember certainly whether these eggs or 

 those of the Chicken Snake were free or adherent, but I think 

 both lots were in the latter condition. 



On July 5, 1902, a Milk Snake (Oplii bolus doliatus triangnlus) 

 from Michigan, in my possession, laid 1 5 eggs all adherent in one 

 cluster; there were about 30 mm. long, with smooth, tough, 

 white skin and short oblong in shape. On the same day a dead 

 Green Snake (Cyclopias cestivus) was brought to me, which con- 

 tained in its oviducts four elongate, thin skinned eggs (20 to 22 

 mm. long) which contained small embryos. 



On July 12, 1902, two lots of snake's eggs were brought to 

 me, different from any I had previously obtained. One lot con- 

 sisted of two elongate, smooth, whitish eggs, 23 and 25 mm. long. 

 One was put up and the other kept until Aug. 14 (thirty-three 

 days later) when a young Carpliophiops ai/uvuus within a day 

 or two of hatching was taken from the egg. The other lot con- 



and shape of the eggs of the lizard, Srcloporus uudulatus, but 

 smooth skinned and one-sided and about 16 to 17 mm. long. 



Practically alUhe lizards' eggs brought in belong to two species, 

 Scclopoms und ulatus (the Fence Lizard) and Cncmidophorus 

 sex luteal us (the Sand Lizard locally known as Sand Trotter, 



each of these species are brought in every year, those of Scelo 



dophorus in the latter part. 



The eggs of Sceloporus undulatus are short, oblong in shape, 

 measuring from 14 to 18 mm. long and about 10 to 13 mm. 

 wide, and the skin is roughened causing dirt to readily adhere to 



