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 claw r s, 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 Linnaean division of Geometrce.” 
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 Frotella of 
Dana, and to the species named JEgina longisjoina by 
Kroyer. 
