Notes on the Marine Invertebrates of Rusk, Co. Dublin. 233 



Crustacea. — Amongst the Amphipods, Caprella linearis, 

 Linn., was in considerable abundance, looping about amongst 

 the weeds and zoophytes. In similar places the Isopod 

 Idotea tricuspidata, Desm., occurred abundantly. Two smaller 

 forms, Dynamene rubra, Leach., and D. viridis, Leach., were 

 plentiful on the Fuci. The}^ are about one-fifth of an inch 

 in length, and are often found together. They are both new 

 to the fauna of Co. Dublin. Mr. Thompson has taken the 

 former at Bangor, and the latter at Lahinch in Co. Clare. The 

 edible crab, Cancer pagutus, Auctt., and the common shore 

 crab, Carcinus mcenas, Leach., were collected. The smooth 

 rocky floors of some of the pools formed a convenient battle- 

 ground for small hermit crabs, Eupagurus bernhardus, Fabr. 

 Overturning the stones rewarded one as usual with numbers 

 of Force lla7ia platycheles, Linn., and P. longicomis, M. Kdw. 



The Pycnogons collected were handed over for determina- 

 tion to Mr. G. H. Carpenter, and he has kindly returned me 

 the following list : — Nymphon rubrum, Hodge, Pallene 

 brevirostris, Johnst., Phoxichilidhim femora turn, Rathke, 

 Anoplodactylus petiolatus, Kr. This species is new to the 

 east coast of Ireland. Phoxichilus Icevis, Grube, Ammothea 

 echinata, Hodge, Pycnogonum littorale, Str. 



IRISH MOTHS. 



(Concluded from page 220.) 



ARCTIIDJ&. 



Nemeophila russula, L.— West of Ireland; local, but often abun- 

 dant :— Cos. Antrim, Donegal, Sligo, Galway, Cork, and Kerry. 



N. plantaginis, L. — Generally distributed on heaths and bogs: — 

 Cos. Derry, Antrim, Tyrone, Fermanagh, Sligo, Galway, Westmeath, 

 King's, and Kerry. 



Arctia caia, L.— Common everywhere. 



Spilosoma fullginosa, L.— Widespread ; locally common. 



S. mendica, CI., and var. rustica, Hb.— Rare:— Cos. Antrim, 

 Armagh, Dublin, Wicklow, Waterford, Iyimerick, Galway, and Cork. 



S. lubricfpeda, Esp. ) _ , 



~ *«_ ■ -cv \ Common everywhere. 



S. menthastrl, Esp. ) J 



A 3 



