26 MAIAD^. 



collection which were obtained at Roundstone, Conne- 

 mara." 



It inhabits, also, the Mediterranean ; and I have observed 

 a remarkable peculiarity in some of the sijecimens from 

 that locality. The anterior pair of legs, as I have before 

 mentioned, do not assume their full size and development 

 until the animal is quite adult ; but I have seen Mediter- 

 ranean specimens of a very small size comparatively, with 

 the full adult development of the feet. In such cases we 

 might expect to find the reproductive organs fully per- 

 fected, from some local circumstances favourable to their 

 development, whilst the general growth of the animal had 

 been retarded, probably by deficiency of nourishment. 



I 



