384 CRUSTACEA. 



Avith those crabs, " packed as close to each other as tiles on a roof! " In 

 June, 18!}<S, I found the P . ■platyclicles in numbers beneath large stones at 

 the island of Lambay, off the ])ublin coast; on the 1st of this month the 

 females abounded in ova. At Lahinch, County Clare, this species occurred 

 to Prof. Forbes and myself in July, 1840, between tide-marks, and be- 

 neath the same stones P. lonyicornis was met with alive. Tory Island, 

 Mr. Hyndman. 



P. loiif/icomis, Edw. 



This species chiefly inhabits deep water on our coasts, but in some 

 localities lives on shores exposed at the ebb of every tide. It has been 

 dredged up in abundance in the Loughs of Strangford and Belfast, and in 

 the open sea oft" the North-East coast of Ireland, in 1834, and subsequently 

 by Mr. Hyndman and myself. It is genei'ally found in connexion with 

 large shell-flsh brought up from deep water, such as oysters, horse-mus- 

 sels {3fodioli(s vulgaris), or clams (Fecten maxinins), and shelters itself 

 under any extraneous matter or natural roughness (as between the testa- 

 ceous layers of an old oyster) sufficient for the purpose. Dr. Ball's col- 

 lection contains specimens from Youghal and Dublin Bay : — on the shore 

 of the island of Lambay I have taken it alive, as well as at Lahinch on 

 the western coast. 



Specimens of this crab have been sent me from the coast of Wigton- 

 shire, Scotland, by Captain Fayrer, fl. N. 



3rd Section, Macro ura. 



Genus Galathea. 



G. strigosa, Edw., 



Would appear to be distributed around the coast, but evei'ywhere in 

 very limited numbers. Templeton notes it as found at " Bangor, Co. 

 Down, November, 1819, and in the stomach of a cod-fish." It is enumer- 

 ated in Mr. J. V. Thompson's catalogue, his specimen being probably 

 from Cork. Two were captured by Mr. Hyndman and myself, when 

 fh'edging in Strangford Lough in October, 1834 : and others have subse- 

 quently been added to my cabinet from the rocky coast of Antrim, as 

 from Island Magee ; Glenarm ; the vicinity of the Giant's Causeway ; 

 one or two only from each place : at the last-named, a couple of indivi- 

 duals, which were brovight to me alive in the month of June, were cap- 

 tured under stones at low-water. The species may probably resort to the 

 shallows to deposit their ova, which in these examples were ready for 

 exclusion. The Ordnance collection contains the G. strigosa from Bel- 

 fast Bay. Dr. Ball has a specimen from Dublin Bay : — its length of body 

 is 4| inches ; arm fi'om basal insertion to end of claw 4^ inches. 



In March, 1835, a G. strigosa from Portpatrick Avas kindly sent to me 

 by Captain FajTcr, R. N. ; and on the beach at Newhaven, near Edin- 

 burgh, I once picked up a very large one, which had probably been throAvn 

 out of some of the fishing-boats. At Ventnor, in the Isle of Wight, one 

 which had been captured in a crab-pot was brought to me ; it was 5^ 

 ijiches in length from the ])oints of the claws to the extremity of the tail- 

 plates. 



