194 JULY. 



the Painted species specially] " will dart backward for 

 several feet into a hole very little larger than them- 

 selves : this I have often seen them do, and always with 

 precision." This would surely be a remarkable feat for 

 an animal in the air ; how much more through a medium 

 so dense and resisting as sea- water ! 



I have elsewhere 1 described and figured the young of 

 a species of this genus in two of its stages. In the first 

 it may be compared with a prawn, having a lengthened 

 slender body, whose fore part is protected by a prawn- 

 like transparent carapace, with an immensely long 

 straight spine in front, and two hooked ones behind. 

 In the next stage the general figure is acquired, but- 

 still the form is more like that of Porcellana than of 

 Galailiea. 



1 Teriby, \>. 169, Plates vn. and viri. 



