Crangon and Galathea. 101 



The abdomen is narrower than the carapace, smooth, the margins of the 

 somites haired. 



Length of largest specimens I have seen, one inch from rostrum to telson, 

 or, including outstretched chelae, l*7o inch. The subjoined measurements are 

 taken from a Belfast specimen : — 



Inches. 



Length from tip of chelse to extremity of curved abdomen, . 1-5 



Length from rostrum to extremity of telson, 1-0 



Length of carapace, 0"5 



Length of abdomen, '. 0'5 



Length of chelas, 1-0 



Length of propodos of chelas, 0'5 



Breadth of carapace, 0'375 



Breadth of chela?, 0-125 



Length of external antennre, 0'5 



Length of second pair of chelipeds, 0-625 



Colour, various shades of dull salmon-red, with a few scattered greenish- 

 brown blotches. 



Habitat — To me it has only occurred in deeper water, on a sandy, shingly 

 bottom. In Belfast it has also been taken only in deep water. It is much 

 rarer than nexa. 



Habits — The animal lived well in the tank, and was active. 



Localities, Dublin, south of the Mugglins, in ten to fifteen fathom water. 

 Cnook, in a similar locality. In Mr. Waller's collection, obtained off the Turbot 

 Bank and elsewhere, Belfast, occur several specimens of this species. I have 

 not seen it in the pots. 



This species -was first established by Charles Spence Bate, from specimens 

 taken at Plymouth. It is distinguishable from G. squaviifera by the propor- 

 tions of the external foot-jaws and colour, &c.; 



From Galathea strigosa, by the absence of teeth on the surfaces of the che- 

 lipeds, squaraulation of the rostrum, and globosity of chela; ; 



From Galathea nexa, by the form and squaraulation of rostrum, comparative 



VOL. XXIV. p 



