62 
A COENISH TATINA. 
purchasing them they are regarded as a great annoyance by the 
fishermen ; for it is found that when they occupy a crab-pot 
no lobster will enter it. I have been informed of nearly a cart 
load having been taken at one haul of a ground seine, and sin- 
gularly enough the whole were found to be females. It is indeed 
a matter of general observation that the females exceed the males 
in the proportion of perhaps 10 to 1 ; and during the summer 
they are all well laden with spawn, which having been carried 
beneath the flap as in other crabs, for several months, for the sake 
of full exposure to the water and light, are dropped in some con- 
cealed places, whore they elude observation, for I have not 
succeeded in finding one of a very small size.” This may be 
accounted for by the fact that when in the zooa form the young 
animal swims on the surface of the sea in a form unlike the 
parent. 
CAN CERIBJE . — ( C anceeians . ) 
Genus, Xantho. — Leach. 
,, Zantho. — Couch. 
Carapace large, horizontal, a narrow fissure dividing it into 
two portions, the separating line furrowed ; cavities of the 
antennse transverse, separated by a slender partition, antenn® 
short. 
Xantho eloeidus — Furrowed Crab. — Leach, Malao. pi. 11; Milne 
Edwards, Mist, des Crust., fig. 1, p. 294; bell, Brit. Stalh- 
eyed Crust., p. 51. 
Bell says that “ it is found in considerable numbers on the 
Coast of Cornwall and Devonshire, and also in Dorsetshire. B 
has been observed on several parts of the Coast of Ireland. Of 
its peculiar habits nothing is known.” 
Xantho eivuiosa — Leach, Trans. Sin. Soc. xi, p. 320 ; Bell, Brit- 
Stalk-eyed Crust., p. 54 ; Milne Edwards, Hist, des Crust., I- 
1, p 394. 
“Equally common with the last and in similar situations, 
under stones about low water mark.” 
This species is known in the Mediterranean sea, and it has 
been taken at Antrim, in Ireland. Mr. Couch informed Mr- 
Bell that it is rather more common than X florida, in Cornwall- 
