MALACOSTRACA FROM THE WEST OF IRELAND. 171 



havets Saxisopoder," p. 317) it occurs in the Mediterranean 

 and on the coasts of New England and S. America. 



Idotea granulosa, Rathke. 



It appears to me that I. pJiospJwrea, Harger, ought to 

 be referred to this species. 



Janiropsis breviremis (Sars), 1 2 with ova, length 2.75 

 mm. 



Not previously recorded out of Norway. In Sars' figure 

 (" Crust, of Norway," vol. II., pi. 42) of the dorsal view of 

 the female the legs are much too small. 



Lysianax ceratinus, A. 0. Walker. 



I have to thank Mons. E. Chevreux for pointing out 

 that this species, which I had thought to be too close to 

 L. longicornis (Lucas) to be separated from it, is distinct. 

 The almost entire absence, in L. ceratinus, of the long 

 tooth on the lower distal margin of the first joint of the 

 upper antennae, which is so characteristic of L. longicornis, 

 is the most obvious difference. According to M. Chevreux 

 the latter species is exclusively Mediterranean, while L. 

 ceratinus is found both in that sea, in the Channel Islands, 

 and on the west coasts of England and Ireland. It must, 

 therefore, be understood that wherever I have recorded 

 L. longicornis, L. ceratinus is the species intended. 



Ambasia danielsseni, Boeck. 



This species has not been previously recorded out of 

 Norway, where it is found at 40-100 fath. (Sars, " Amphi- 

 poda of Norway," p. 46 j. It would appear, therefore, to 

 be found at greater depths when further south, the 

 specimen examined having been dredged in 750 faths. 



