CARCINUS MiENAS. 
Tab. V. 
C. testa granular i, fronte trilobato : lobo medio sublongiore. 
Cancer Maenas. Linn. Syst. Nat. xii. 1. 1043. 
Fn. Sv. 2026. 
Penn. Brit. Zool. iv. 3. tab. 3. Jig. 5. 
Fabr. Ent. Syst. ii. 450. 41. — Suppl. 334. 3 
Lair. Gen. Crust, et Insect, i. 30. 2. 
Portunus Maenas. Leach Edinb. Encycl. vii. 390. 
Carcinus Maenas. Leach Edinb. Encycl. vii. 429. 
Trans. Linn. Soc. xi. 314. 
Encycl. Britann. Suppl. i. 410. 
Pig. 1. Carcinus Maenas mas. 2. maris abdomen. 3. fcemina. 4. f(eminas abdomen. 
5. Antenna externa. 6. Pedipalpus externus. 7. Carcinus Maenas, junior. 
This very common species inhabits all the estuaries and rocky shores of Great Britain lurking 
. ^ ft 
beneath stones and tangle or burrowing in the sand. It is sent to London in immense quantities, 
and is eaten by the poor, who esteem it a great delicacy. 
The young or fry, are frequently mottled or bordered with white, and in this state the front 
of the shell is entire, but this part becomes gradually more lobed as the animal increases in size, 
and old specimens are rarely found without the rudiments of the lobes. 
' The colour of the adult is generally similar to that given in the annexed plate, but is some- 
times of a pale green more or less mottled with a darker teint, which has probably given rise to 
the supposition of the existence of several species. 
