CAPRELLA. 217 



under a microscope, we were agreeably surprised to observe 

 not less than ten young ones crawl from the abdominal 

 pouch of the parent, all perfectly formed, and moving with 

 considerable agility over the body of the mother, holding 

 fast by their hind claws, and erecting their heads and arms. 

 On a small species of Fucus a vast number of these curious 

 insects were collected, of both sexes, and of all sizes. When 

 at rest, they only held by their hind claws ; in motion, the 

 arms were also used, and the progression was somewhat 

 similar to that of the looper caterpillars, or larvae of the 

 moths of the Linnsean division of Geometrte." 



Caprella spinosa, Goodsir. — Similar to last; differs 

 chiefly in the first thoracic segment having five spines ; the 

 segments are considerably longer ; the first pair of feet are 

 minute and slender, Of a pale white-colour; the eyes 

 black. An inch long. 



Firth of Forth (Goodsir). 



Mr. Bate refers this with doubt to the genus Protella of 

 Dana, and to the species named JEgina longisjnna by 

 Krover. 



