860 AMPHIBIA. 



we find others which are peculiar to this form, viz., remarkable knob-like glands 

 along the sides over each rib and supported by processes from the anterior ribs, 

 and posteriorly by the ends of the ribs ; and dilated tips to the spinous processes of 

 the vertebrge serving to support glandular pore-hke pits, all of these characters 

 being common to both sexes. 



Males caught at the period (spring) when the eggs of the females were consid- 

 erably larger than the head of a good-sized pin did not show any sign of a crest. 



