390 CRUSTACEA. 



marshes from North to South of Ireland. I have taken them at mid- 

 winter as well as midsummer fill(>d with ova. The western shore of Bel- 

 fast Bay was many years ago of a hard sandy nature, so as to admit of 

 being ridden over by persons on horseback. At that period, as I am in- 

 formed, shrimps abounded there, and were regularly sought for as objects 

 of sale. At present this same part of the shore is soft and oozy, and the 

 shrimps so very limited in number and small in size, that they are never 

 looked after. Although this species chiefly frequents sandy shores, I 

 have occasionally seen it brought up in the dredge from deep water and 

 at a considerable distance from land, in the Loughs of Strangford and Bel- 

 fast. J)r. Ball mentions that shrimps, though existing in large quantities 

 at Youghal, are held in little esteem, but that the prawn [Palcemon serra- 

 tus), caught abundantly at spring-tides, is much thought of — this latter is 

 called " shrimp " there ; the former the " grey shrimp : " this term is also 

 used in Smith's History of the County of Cork, written nearly a century 

 since. 



C. fascintus, Risso. 

 Among Crustacea lately submitted to my examination by Dr. R. Ball 

 are two individuals of this species, which were taken by him at Bray in 

 July last. They are nearly 1 inch in length, and exhibit masses of mature 

 ova. The species is admirably characterized in Milne Edwards' descrip- 

 tion above referred to. Its short thick farm at once arrested my attention 

 as distinct from that of C. viik/aris : — the colour designated by the trivial 

 nd^me fascintus does not so distinguish it. One specimen exhibits a black- 

 ish band on the fourth segment of the abdomen, and the other none ; and 

 the greater number of specimens of C. vuk/aris from various parts of the 

 Irish coast examined in reference to this character have more or less of a 

 blackish band on this segment. It is slightly shown too in Sowerby's 

 figure on Leach's ]\Ialacost. Podophth. Brit. This species had not been 

 noticed as British, but has I believe been lately obtained by Professor 

 Bell. 



C. sculptus, Bell. 

 In 20 fathoms, S. sound of Arran, Professor Melville. 



C. bispinosus, Westwood. 

 In 30 fathoms, Galway Bay, Prof. Melville. 



Genus Pontophilus. 

 " P. spinosus" Leach. 



In Mr. J. V. Thompson's collection there is a specimen bearing the 

 former name, and marked as Irish. It is much to be regretted that the 

 notice of the Irish Crustacea in this collection (now in the College of 

 surgeons, Dublin), is limited to a single letter, the initial " I " simply in- 

 dicating 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 Metamorphoses of the Crustacea. 



Ge7ius Processa. 

 " P. (vel Nika) canaliculata," Leach. 

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



