Crustacea. 5775 



lichondria suberea ? I have not met with it in spawn, though I col- 

 lected it from December to June inclusive. 



Thompson's Hermit Crab (Bernhardus Thompsoni, Bell sp.) The 

 rarest of the lesser hermit crabs about Dublin. Same localities as 

 last-mentioned, but much rarer, and specimens all small. Spawns in 

 February, March and April. Ova chocolate-colour. 



Broad-clawed Hermit Crab {Bernhardus Hyndmanni, W. Thomps. 

 sp.) Same localities as last, and extremely common in the dredge ; 

 rare in lobster pots and on long lines. Merrion Strand, drift weed, 

 very rare, TV. V. MacNally, Esq. This species occurs in clean 

 shells of Natica and Trochus, rarely Turritella. It is essentially an 

 inhabitant of the coralline zones. Spawns in February, March and 

 April. Ova pale chocolate. The adult male specimens have the 

 wrist much elongated, twisted and serrated along the inner edge, and 

 in this state may be mistaken for badly-marked specimens of B. laevis. 



Long-horned Porcelain Crab (Porcellana longicornis, Linn, sp.) 

 Common under stones in extreme littoral zone, and among Corallina 

 officinalis in rock-pools ; also in coralline and deep-sea zones. The 

 arm and wrist, in young specimens, especially from the deeper water, 

 are dentated along their inner margin. I do not find this the case in 

 specimens of the same size from the littoral zone. Drifted in after 

 gales abundantly at Merrion. 



Broad-claw Porcelain Crab {Porcellana platycheles, Penn. sp.) A 

 local species. Occurs under stones, in extreme littoral zone, at 

 Sandy Cove, Salthill, Portmarnock, &c. It is essentially a scaven- 

 ger, as in the localities in which it occurs the stones are more or less 

 embedded in a thin layer of foetid mud, the debris of decaying animal 

 and vegetable matters, on which it apparently feeds. Even here it is 

 very choice in its localities, occurring only in detached spots. It is 

 by no means so common in Dublin as in the West. Spawns in April, 

 May and June. Taken also in the dredge by trawlers. 



Scaly Galathea {Galathea squamifera, Mont, sp.) Extremely rare. 

 Taken in lobster pots in Dalkey and elsewhere. Bray, 1857. Local 

 name for all Galatheae, " Spanish Lobsters." 



Spiny Galathea [Galathea strigosa, Linn, sp.) Commoner than 

 the last, but yet rare. I have seen several living specimens from the 

 lobster and whelk pots, and it is also occasionally taken in the long 

 lines. 



Embletou's Galathea (Galathea nexa, Embleton). I cannot record 

 this species with certainty. A single specimen occurred to me, 

 driven in on Merrion Strand, in 1854. The comparative characters 



