Ste ARCTURIDA. 
A double row of tubercles run down each side of the 
inferior margin of the body, immediately above the inser- 
tion of the legs; these tubercles are large and very promi- 
nent on the three anterior and three posterior segments 
of the body, but on the fourth they are not so prominent, 
and are placed in a regular series on each side of the lon- 
gitudinal hinges peculiar to this segment in the female. 
The pleon bulges considerably, and then tapers sud- 
denly to a point at its posterior extremity. 
The animal is of a straw colour, spotted with brown. 
Not having seen a specimen of this species, we have 
been compelled to borrow our description and figures 
from Mr. H. Goodsir’s Memoir on the genus above re- 
ferred to. It was taken in the Frith of Forth, opposite 
Anstruther, by Mr. H. Goodsir. 
