322 ASELLIDA. 
inner one large and oval, setose at the tip. The outer 
ventral scales are free, forming together nearly a circle, 
each divided into two nearly equal parts by a somewhat 
diagonally-placed articulation ; at their base is attached, 
in the males, two minute triangular plates and the 
elongated male organ, which extends to the above-men- 
tioned articulation. The legs are terminated by two 
minute curved ungues. 
Rathke obtained his specimens at Cape Parthenon, in 
the Crimea, under stones; our specimens were taken at 
Plymouth, and in Langland Bay, South Wales. 
