METOECUS. 
207 
Gen. 101. METOECUS, Kroyer . 
Two first pairs of legs much shorter than the following, 
and ending in a little two-toed claw, the movable finger of 
which has at the end a little rudimentary nail. 
Metoecus Medusaeum, O. Eabr., sp. — Eive last pairs of 
legs very slender, the three last longer than the others. 
Coast of Devonshire (Gosse) . 
This curious parasite lives in the cavities of various 
species of Acalephce. Mr. Gosse met with it in those of the 
Red-lined Chrysaora ; he thus alludes to it in his c Natu- 
ralist's Rambles on the Devonshire Coast/ p. 367. “A 
little shrimp-like creature, about half an inch in length, 
with large, lustrous green eyes, makes these chambers his 
residence, dwelling in them as in so many spacious and 
commodious apartments, of which he takes possession, I am 
afraid, without asking leave of the landlord, or paying him 
even a peppercorn rent. There, however, he snugly en- 
sconces himself, and feels so much at home, that he is not 
afraid to leave his dwelling now and then, to take a swim in 
the free water, returning to his chamber after his exercise.” 
What Mr. Gosse believes to be the larvse of this, are like 
minute white specks, “ not larger than a grain of sand, 
