Crangon and Galathea. Ill 



in the littoral zone nor in the dredge. It is not uncommon in the spring months 

 in lobster and whelk-pots set in rocky ground in ten to twenty fathom water. 

 All the specimens thus obtained are adult, the majority females, and in ova. I 

 have never met young specimens, as it is impossible to work the dredge in the 

 ground these animals frequent. 



Habits. — Thrives in the aquarium, but is not so active as either Galathea 

 squamifera, dispersa, or Andrewsii. It is rather a troublesome pet, as some- 

 times it takes fits of destructiveness, and kills everything else (even Actiniae) 

 which it can master, in one night destroying six or seven animals, without at- 

 tempting to eat any of them. 



Localities, East coast, Belfast; I have, near Dublin, procured it vuider the 

 circumstances detailed above, from Bray, Dalkey, Howth, and Loughshinny, 

 where it appears to be not scarce, though it can scarcely be called common. 



The species is most frequently met with in March ; but specimens have 

 been brought to me in December, January, February, and April. Cork, J. V. 

 Thompson ; west coast, Galway, where, according to Professor G. Melville, it 

 is rare. 



Ova, coral-red. 



This species is easily distinguished from all the other British species by the 

 spinosity of the limbs and the form of the chela3, which are much broader than 

 those of Andrewsii, with which alone it could be confounded, as neither nexa 

 nor dispersa have spines on the dactylos : the characters of the rostrum are also 

 of value in distinguishing it from both these species ; and the colour, when 

 living, at once separates it from squamifera. 



