Mr. Thompson's Additions to the Fauna of Ireland. 255 



Crustacea. 



Pirimela denticulata, Leach. Mai. pi. 3. Edw. Crust, t. 1. 424. 

 Amongst a number of invertebrata collected some years ago on 

 the coasts of Down and Antrim by Dr. J. L. Drummond, and 

 which I owe to his kindness, was an individual of this species. 



Portunus pusillus, Leach, Mai. pi. 9. f. 5 — 8. Edw. Crust. 1. 1. 444. 

 In course of dredging in the loughs of Strangford and Belfast 

 a few specimens of this crab have generally occurred to me. 

 Some in Mr. R. Ball's collection were similarly obtained by 

 him in Dublin bay. 



Ebalia Bryerii, Leach, Mai. pi. 25. f. 12. Edw. Crust, t. 2. 129. 

 A single individual of this rare species, with which I have 

 been favoured by Mr. Hyndman, was procured by him from 

 deep water in Belfast bay*. 



Pagurus Prideauxii, Ledich, Mai. pi. 26. f. 5. 6. Edw. Crust, tab. 2. 

 216. See Actinia maculata, p. 251. 



Galathea nexa, Embleton, Proceedings Berwickshire Club. p. 71.pl. 1. 

 I have found in the stomachs of cod-fish brought from the 

 coasts of Down and Antrim to Belfast market ; and in Dr. 

 Drummond's collection are specimens which were similarly 

 procured. A comparison of one of these with an original spe- 

 cimen in Dr. Johnston's possession, proved, what from its 

 agreement with the description and figure I had previously 

 little doubt of, the identity of the species. 



Mr. R. Ball's collection was found some years ago by Mr. Wm. Todhunter, 

 among the refuse of a Torbay (Devonshire) fishing-boat, in Dublin bay; — 

 it was brought up in the trawl-net somewhere between these two ports. 

 This species has hitherto, I believe, been noticed but in one locality in the 

 British seas. Vide Flem. I.e. 



* The following Brachyurous Crustacea having in Ireland been hitherto 

 noticed only as occurring on the coast of Cork, may be worth mentioning 

 here. 



Hyas coarctatus, Leach. Frequent in deep water on the north-east coast, 

 W. t. Dublin bay, Mr. R. Ball. 



Eurynome aspera, Leach. In Oct. 1834 and subsequently, a few speci- 

 mens have been procured by Mr. Hyndman and myself when dredging in 

 Strangford lough. 



Portunus arcuatus, Leach. P. Rondeletii, Edw. In January 1835, and 

 since obtained by dredging in Strangford lough. W. T. When at Killin- 

 chy, on the shore of this lough, on the 1st Oct. last, and looking to the 

 refuse in a number of small boats which had been employed the previous 

 night in herring fishing, I found in every one of them several of these 

 crabs, and none of any other species. 



Ebalia Pennantii, Leach. In Sept. 1836, a specimen was taken in Bel- 

 fast bay by Mr. Hyndman, and subsequently another was procured here 

 by Dr. Drummond. For one obtained in Dublin bay I am indebted to Mr. 

 G. J. Allman. 



