MODERN SYSTEM. 
84 
abdomen of the male with the fourth joint, elongate : shell with the 
transverse and longitudinal diameters the same. 
Sp. 1. For. variegatus. Shell obscurely granulated on each side, with 
live teeth, the second and third somewhat obsolete ; front with three 
teeth; wrists internally with one tooth. Ledch, Malac. Podoph. Brit, 
t. 4. male and female. Cancer latipes. Penn. Brit. ZooL iv.3. 1.1./. 4. 
female. 
l’lanc first discovered this species on the shores of the Adriatic 
sea. It burrows beneath the sand, where it may be found by dig- 
ging at low water, on most of our sandy shores. 
When living it is' most beautifully mottled, and the legs are of a 
hueous-orange colour. 
Genus 4. CARCINUS. Leach 
Ei/es narrower than their peduncles : orbits behind and beneath with 
one fissure: anterior pair of legs unequal, the hands externally 
smooth; hinder pair compressed, and slightly formed for swimming: 
abdomen of the male with the fourth joint transverse, and scarcely 
narrower than the third: shell with the transverse diameter greatest. 
Sp, t. Car. Manas. Shell with five teeth on each side; front with three 
rounded teeth or lobes : hands with one tooth, wrist with a spine. 
Cancer Mantas of authors. Car. Manas. Leach, Malac. Podoph. Brit, 
tab. 5. 
This most common species inhabits all the shores and estuaries of 
Britain. It burrows under the sand, or conceals itself beneath fuci 
and stones, it is sent to London in immense quantities, and is eaten 
by the poor. 
Genus 5. PORTUNUS. Fabr., Latr., Bose, Tjim., Leach. 
Eyes much thicker than their peduncles ; orbits behind, with two fis- 
sures, below with one fissure : abdomen of the male with the fourth 
joint transverse : anterior pair of legs somewhat unequal, the hands 
externally with elevated lines, anus generally unarmed; hinder pair 
compressed, fbliaceous, and formed for swimming : shell with the 
transverse diameter greatest; the side3 with five, rarely with six, 
teeth. 
* Hinder daws with an elevated longitudinal line ; external double 
palpi with the second joint of their internal footstalk truncate at their 
internal apex. 
a. Orbits at the insertion of the antenna imperfect. IFn'sfs hi- 
dentale. 
Sp. 1. Por. puber. Antennas half the length of the body: shell pu- 
bescent; front with many teeth. 
Cancer puber. LinnL Cancer velutinus. Penn. Brit. Zool. iv. 8. pL 4* 
Jig. 8. Po.rtunus puber. Leach, Mai. Podoph. Brit. tab. 6. 
