98 Mr, Montagu's Description of several Marine Animals 



antennae four, the upper pair longest, but shorter than the body: 

 eyes linear; arms four, subchelate, the fore pair very small; 

 hands indented, hirsute; hinder pair large, ovate, compressed ; 

 fangs long and hooked, folding upon the edge of the hand, and 

 partly received into a slight groove ciliated with hair : legs ten, 

 the two anterior pairs small, the others much longer, with broad 

 flat thighs : caudal fins five, bifid, the upper one longest. 



Length about five lines. 



Colour, when alive, pale-yellow, sometimes mottled with pink. 



The anterior arms might be considered as palpi, but are much 

 longer than those usually are ; these, however, are generally so 

 closely folded up as frequently, in dead specimens, to evade the 

 eye. 



Not uncommon on our rocky shores, in the pools left by the 

 receding tide. 



Although the hands of this and of Cancer Uttorcits are somewhat 

 similar, yet there is a material distinction, especially in this 

 being destitute of the knob or blunt spine. In the joint of the wrist 

 and other parts the specific distinction is too obvious to require 

 entering into detail, ^as a comparative view of the figures will 

 evince. 



Cancer Gammarus Talpa. 

 Tab. IV. Fig. 6*. 



Body with numerous joints slightly depressed : antennas four, 

 the outer pair longest, all tufted with hair at the end : eyes 

 small, fixed, placed immediately behind the antennas ; beneath 

 these is a small spine pointing forward : arms four, the anterior 

 pair chelate ; hands ovate ; fangs plain and hooked : the second 

 pair are of a very singular structure, the three last joints broad, 

 flat, and pectinated on each side with long hooked spines, some- 

 what 



