Insects. 5717 



Common Nut Crab (Ebalia Pennantii, Leach). Rare ; probably, 

 rather, not found. Bray, Dalkey Sound. In ova in April. 



Circular Crab (Atelecyclus heterodon, Leach). Rare. Three 

 small specimens of this species occurred to me in 1854, along with 

 P. arcuatus and P. corrugatus. It is apparently an inhabitant of 

 comparatively deep water. 



Mask Crab (Corysles Cassivelaunus, Penn. sp.) Sandy beaches 

 after gales, also deep-sea lines. Not uncommon. In ova in March. 



The following species are recorded as having occurred in Dublin 

 Bay, but have not come under my notice living. 



Florid Crab (Xanthojlorida, Leach). Very doubtful. Most pro- 

 bably an error. 



Angled Crab (Gonoplax anyulatus, Fabr. sp.) Though I have 

 never met this crab recent, yet there are many well-authenticated 

 specimens of it from Knockagin, Co. Dublin, in the University col- 

 lections, Trinity College, as well as in private collections. Local 

 name " Coffin Crab." 



Cranch's Nut-crab {Ebalia Cranchii, Leach.) The late lamented 

 Doctor Robert Ball showed me a specimen of this crab taken by 

 himself, many years ago, on the Dublin coast, I think in Dalkey 

 Sound. 



John R. Kinahan. 



Donnybrook, Dublin, 

 May, 1857. 



Note on Carcinus Mcenas. — A few days since I observed a small shore crab (Car- 

 cinus Manas), in my aquarium, devouring one of his own species of less dimensions ; 

 so far there was little to remark, but I was struck by the circumstance that both the 

 claws of the victim were gone, and, as none of his eight legs were injured, it seemed 

 highly probable that the conqueror had deprived the vanquished of his weapons, that 

 he might finish his meal in peace. Perhaps others can tell whether this scientific 

 proceeding is usual among crabs.— George Guyon ; June 15, 1857. 



Hybernating Larva feeding on Moss. — A friend of mine, residing at Crewe, who 

 paid me a visit the other day, mentioned in conversation the following circumstance, 

 which may be of use to other entomologists who may have a brood of hybernating 

 larvae:— He said, while beating for larvae lale last autumn, on passing a bed of 

 Epilobium hirsutum, he beat some of the plants over his umbrella, and, upon exami- 

 nation, found a number of young Noctua larva): he took a few home, and placed 



