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 Medusarum, 0. 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 

 Bed-lined Chrysaora ; he thus alludes to it in his ' 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 larvae of this, are like 

 minute white specks, "not larger than a grain of sand, 



