110 Mr. W. Thompson on the Crustacea of Ireland, 



" I" simply indicating them, as " F " does the foreign species. The 

 native specimens were, I believe, chiefly derived from the harbour of 

 Cove, whence those were brought upon which that naturalist founded 

 his highly important and celebrated ' Researches into the Metamor- 

 phoses of the Crustacea.' 



*' Processa (vel Nika) canaliculata." 



Irish examples of this species are in Mr. J. V. Thompson's col- 

 lection. 



Athanas nitescens, Leach, Mai. pi. 44 ; Edw. Crust, t. ii. p. 366. 



A single specimen was found under a stone between tide-marks 

 at Lahinch, county Clare, by Mr. E. Forbes and myself in July 1840, 

 as noticed in the seventh volume of this Journal. 



Hippolyta varians, Leach, Mai. pi. 38. f. 6-16; Edw. Crust, t. ii. 



p. 371. 

 Is an inhabitant of deep water around the coast. Mr. J. V. 

 Thompson's collection contains Irish specimens. This species has 

 been dredged in Belfast and Strangford loughs by Mr. Hyndman 

 and myself, and was similarly procured by our party in July 1840, 

 in Clew and Roundstone bays on the western coast. In Dalkey 

 Sound, Dublin bay, an H. varians ? was taken by us in the dredge. 



" Hippolyte Cranchii " 



Is marked in Mr. J. V. Thompson's collection as Irish. 



Pandalus annulicornis , Leach, Mai. pi. 40; Edw. Crust, t. ii. p. 384; 



Desm. p. 220. pi. 38. f. 2. 

 Is in Mr. J. V. Thompson's collection. The species has been 

 taken commonly by Mr. Hyndman and myself in the rock-pools ac- 

 cessible at low-water throughout the Down coast, and has been 

 dredged by us in deep water on the north-east coast, and in Killery 

 bay, Connemara. Mr. R. Ball has specimens from the shores about 

 Dublin. 

 Palamon serratus, Leach, Mai. pi. 43. f. 1 ; Edw. Crust, t. ii. p. 389 ; 



Desm. p. 234. pi. 40. f. 1. 

 Astacus serratus, Penn. Brit. Zool. vol. iv. p. 25. pi. 17. f. 1. 



The prawn, an article of human consumption, is noticed in some 

 of our old county histories, as Harris's ' Down,' Smith's ' Cork and 

 Waterford,' Rutty's 'Dublin.' The last author says, apparently* 

 with reference to this species, that " it was formerly frequent on our 

 coast, but the frost in 1740 destroyed many of them" ! vol. i. p. 379. 

 Templeton speaks of it as " once common in Belfast lough ; now 

 rare." Some years ago I obtained from this locality a very large 

 specimen, which was taken in a lobster-pot at the entrance of the 

 bay. Here the species has more lately been obtained by the collectors 

 attached to the Ordnance Survey, who likewise procured it at Port- 

 rush near the Giant's Causeway. Mr. R. Ball states that at Youghal, 



* He refers to Rondeletius for the species meant, a work which I have 

 not at present to consult. 



