AN ODD NAME yi 
condition. The genus is compared with Rachitia spinalis, 
Dana, a young animal taken in the Atlantic, which, how- 
ever, differs ‘in having the rostrum short, in the first pair 
of antenne having only a single flagellum, and in the 
form of the telson.’ The name Oodeopus perhaps alludes 
to the circumstance that in some of the specimens the feet 
were beginning to swell or bud out, but for swollen feet, 
the Greeks had already provided the name Cdipus, and 
Dana had already used this name for another genus of 
prawns, and other naturalists had used it for other pur- 
poses before Dana. The alternative derivation of Oodeopus, 
as meaning ‘ with feet on the ground,’ seems to make the 
name entirely pointless. 
Autonomea, Risso, 1816, may here be mentioned as a 
genus of which the position is obscure. It is described as 
having the first pair of trunk-legs chelate, the second 
simple. Risso distinguishes it from Alpheus and Nika. 
Milne-Edwards places it next to Pontona, Victor Carus 
puts it between Anchistia and Pandalus. The type species 
was named Autonomea Olivit by Risso, but as he makes 
Cancer glaber, Olivi, a synonym, it is hard to see why it 
should not be called Autonomeea glaher. Jonathan Couch 
in his Cornish Fauna is quoted by Adam White and 
Spence Bate as saying of it: ‘This species has been 
hitherto unknown as British, but I have examined several 
specimens taken from the stomachs of fishes, from the 
depth of fifteen or twenty fathoms. Some of these were 
of larger size than described from the Mediterranean ; 
one, not the largest, measuring three inches from snout to 
tail, with antennz of the length of five inches.’ 
Legion 4,.—Haplopodinea. 
All the trunk-legs are similar in structure to each 
other, simple, six-jointed, with the fifth joint not sub- 
divided, and all but the last pair carry exopods. 
