ON SOME LITTLE-KNOWN FISHES AND CRUSTACEA. 475 
can be folded up so as to be placed entirely under the protection 
of the exterior pair. All the legs have curved pointed single 
fingers, and none have any prehensile hand. The front pair of 
legs have a very strong arm and wrist anda stout claw. The 
second and the third pair of legs are longer than the first, and 
reach as far forward. ‘The under surface of the carapace is 
protected by the same scaly processes as the upper. 
When the animal les in what is apparently its natural 
attitude, anchored by its three sets of foremost legs, and with 
every one of its legs under the cover of the carapace and its 
exterior antenne spread in front and lowered to a level with 
the bottom, so as to form a shield, it looks as thoroughly and 
effectively on the defensive as well can be. In front of the 
working fore-legs there is a pair of small appendages, in 
appearance somewhere between legs and pedipalps,* furnished 
with ciliated terminations, and used, I imagine, for sweeping the 
very small atoms of food on which the animal exists into its 
proper mouth. 
The prevailing colour of the animal is reddish brown, with 
cross-bars of dull coral colour, pointed with ultramarine blue 
across the interstices of the joints of the tail. The stalks of the 
eyes are dull coral colour, and the eyes themselves very large. 
Of the two specimens now lying before me,t the larger 
‘measures 4 inches from the extreme point of the external 
exterior antenne to the bend of the tail, and 13 inch across the 
broadest part of the exterior antenne, with 14 inch between 
the exterior spines of the eyes; and the smaller 33 inches over 
all as before, 12 inch over the broadest part of the antenne, and 
7’ inch from spine to spine outside the eyes. 
[We have shown these observations to Mr. E. J. Miers, of the 
British Museum, who has paid special attention to the Crustacea, 
and he has favoured us with the following note:—“ Of recent 
years several occurrences of this species have been recorded in 
the British Channel. Mr. Spence Bate (Ann. Nat. Hist. 11. 1868, 
p- 117) mentions its occurrence at Penzance and near the entrance 
of Plymouth Sound; and specimens are in the collection of the 
British Museum from Mount’s Bay, Cornwall, and the island of | 
* (These are the first maxillipedes, which are pediform.—Ep. ] 
+ Only remains of specimens, T am sorry to say; both were taken alive and in 
berry, but in noting these details | have ruined both of,them. 
