NCENIA RIMAPALMATA. 
475 
since been sent to us from Kames Bay, Cumbrae, by 
Mr. Robertson, who informs us that he has repeatedly 
found it to be the occupant of almost every Buccinum 
shell inhabited by the hermit crab. He therefore 
assumes, with some apparent justice, since he has never 
found any other species of Amphipod so associated, that 
the position must be one of choice, and not an acci- 
dental occurrence. We may, therefore, consider that 
Ncenia rimapalmata forms one of the “ happy family,” 
spoken of by Mr. Gosse, Mr. Lubbock, and others, 
and exhibited in the vignette below. It has also been 
taken by Mr. Jeffreys and the Rev. A. M. Norman, in 
from seventy to ninety fathoms of water, sixty miles east 
of the Shetlands. 
