182 
CRUSTACEA. 
884, 5, Ivi; Inachus cornutus. Fab. It is very common on the coast 
of France and in the Mediterranean, where it is called Araignee de 
mer. It is one of the largest of the European Crustacea, and the 
Maia of the ancient Greeks, figured on some of their coins. They 
attributed great wisdom to it, and considered it as sensible to the 
charms of music. 
Micippe, Leach. 
The first joint of the lateral antennae curved, dilated at its supe- 
rior extremity into a transverse and oblique blade, closing the ocular 
fossae ; the ensuing joint inserted under its superior margin. The 
shell, vieM'ed from above, aj)pears widely truncated before; its a}i- 
terior extremity is inclined, and terminates in a sort of clypeus or 
dentated rostrum *. ' 4' ho 
Stenocionops, Leach, 
Is distinguished from all other subgenera of this tribe by long and 
slender ocular pedicles wliich protrude from their fossultef 
There the under surface of the feet presents neither ranges of den- 
tations nor claviform cilia. Those of the first pairs, at least, are one 
half longer than the shell, and frequently much longer. The body 
is usually more abbreviated than in the preceding subgenera, being 
either nearly glob\ilar, or formed like a shortened egg. 
A species of this tribe , — Maia retuja, Coll, du Jard. du Roi, 
whose shell is woolly and forms a truncated ovoid, or is obtuse 
anteriorly ; whose strongly curved elongated ocular pedicles are 
received into fossulte situated under the lateral margin of the 
shell ; whose carpus is elongated as in Maia ; — presents another 
character which exclusively distinguishes it, viz. the length of 
the feet seems to augment progressively from the second pair on- 
wards, or at least to differ but little. It is the type of the genus 
Camposcia, Leach. 
In the others, as usual, the length of the feet progressively di- 
minishes from the second pair to the last. 
In some of them, the ocular pedicles, although much shorter than 
in the Stenocionops, are always salient, and the third joint of the 
pedicle of their lateral antenn-ts is as long, or even larger, than the 
preceding one, the antennse themselves terminating in a long seta- 
ceous stem. The approach the hlicippes ; such is the 
Haliwus, Latr.\ 
In those which constitute the tAVo following sub-genera, the oevdar 
* Cancer crisiatiis, L. ; Rumpli., Mus,, YIII, 1 , the male . — Cancer phylira, 
Herbst. Iviii, 4 ; Desmar. Considt’i'., XX, 2. 
Cancer cervicornis, Herbst., Iviii, 2, from the Isle of France. M. Desmarest 
was mistaken in citing, as the type. Consul. Gen. sur les Crust., p. 153, the 
3Iaia f minis, Lamarck. 
X Two species, one of which appears to be allied to the Cancer super ciliosiis, 
L. ; Herbst, XIV, 89. 
