390 
CRUSTACEA. 
marshes from North to South of Ireland. I have taken them at mid- 
winter as well as midsummer filled 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 w'ater and 
at a considerable distance from land, in the Loughs of Strangford and Bel- 
fast. Dr. Ball mentions that shrimps, though existing in large quantities 
at Youghal, are held in little esteem, but that the prawn ( Patcemon 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. fasciatus, 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 form at once arrested my attention 
as distinct from that of C. vulgaris : — the colour designated by the trivial 
name fasciatus 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. vulgaris 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 Malacost. 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. 
Genus Processa. 
“ P. (vel Nika) canaliculata,” Leach. 
Irish examples of this species are in Mr. J. V. Thompson’s collection. 
