BRITISH STALK-EYED CRUSTACEA. 215 



terminating at the lateral margins in small spines ; the rostrum 

 is composed of a long straight spine, flanked by two smaller 

 ones, which form the protection to the eye. The anterior pair 

 of legs are very long, somewhat narrow, and nearly of the same 

 width throughout ; the first joint is armed with spines at the end, 

 and the whole of the joints are hairy and slightly spinous. The 

 remaining legs are long and slender, the terminal claw not being 

 so sharp as in the foregoing species. The abdominal segments 

 are convex, more so than in the case of Galathea, and the 

 colour is a dull reddish tint, more or less marked with a brighter 

 red. This species is about two and a half to three inches in 

 length, but, as its anterior legs are about twice this length, it 

 gives the animal a larger appearance. 



Munida bamfficus appears to be a very decided deep-water 

 species, and hence is looked upon as rare. It has been obtained 

 from Plymouth Sound, Falmouth, Zetland, Banffshire, and 

 Ireland, from stomachs of cod, as also from the Mull of Gallo- 

 way, where it was " dredged alive in water from one hundred and 

 ten to one hundred and forty fathoms in depth." 



Scyllarus arctus. 



This rare species is a recent addition to the British 

 Crustacea, not being mentioned in Bell's work. It will be 

 found figured in 'The Zoologist,' 1879, p. 473. It is a stout, 

 thick-set animal, possessing no enlarged and heavy forceps, 

 as in the case of its allies, but simply short and comparatively 

 slender pincers ; the remainder of the legs are short, stout, and 

 armed with sharply-pointed terminal joints. 



The antennal scale is much enlarged, and is a prominent 

 feature in this species ; the antennae are short, and the eyes 

 stout and club-shaped. 



The thoracic and abdominal segments are strongly arched, 

 about the same width throughout, except towards the last two 

 segments, where they are narrower ; the thorax is spinous, the 

 points being chiefly confined to a central and two lateral ridges, 

 and directed forwards. 



The colour of Scyllarus arctus is a rich reddish brown, and 

 the length is about six inches. It is a rare species in our seas, 

 but has been taken off the Devon and Cornish coasts, and we have 



