DXTBim MATUSAL HISTOBT SOCIETY. 131 



with it. The trivial name is intended to commemorate the President 

 of the Belfast Natural History Society, Robert Patterson. 



Crangon sculpttM. — Two specimens at the Gobbins. Kot hitherto re- 

 corded, save by Professor Melville at Isle Arran, and by me at Bray, 

 where it is far from uncommon. 



Crangon Allmanni, — Of this species, named by me in 1856, 1 met seve- 

 ral specimens at the Gobbins, on the 20th August, 1858. Subse- 

 quently to this, in the Belfast Museum Collection, I detected two 

 specimens put up as C. vulgariSf and marked in W. Thompson's 

 hand " Fortwilliam, Belfast." 



Hippolyte varians, — Common. 



Jlippolyte Cranchii. — Bangor and Whitehead: a single specimen of each. 



Hippolyte pmiola. — Bangor ; Whitehead ; the Gobbins : far from uncom- 

 mon. Not in Belfast Catalogue. 



Hippolyte Thompsonii, — Common in all the localities. The specimen in 

 the Belfast Collection is marked ** Stranglbrd Lough." 



*?My8i8 Griffithsii. — What I take to be this species is in the collection 

 of the Belfast Museum on a card marked as Mysis vulgaris, and from 

 the neighbourhood of Belfast. Its occuiTence in Ireland is unnoted 

 in our fists. For this and other notes on the Belfast collection I am 

 indebted to the kindness ofG. C. Hyndman, who accompanied me 

 in my examination of the stores of the Collection, and supplied much 

 information as to the identification of particular specimens. 



Crustacea Amphipoda. 

 In this list, in addition to my own observations, I avail myself of a 



list of William Thompson's collection, kindly furnished to me by C. 



Spence Bate, Esq. This is acknowledged by the reference W. T., S. B. 



Those species which have occurred in Dublin are also noted : the rer 



marks on the species are my own. 



Talitrus locttsta, — Common at Groomsport, Crawfordsbum, and Carrick- 

 fergus. "Newcastle, Down" (W. T., S.B.). Dublin. 



Orchestia littorea. — Common. Carrickfergus ; Groomsport ; Crawfords- 

 bum ; and Lame ; " Strangford Lough" (W. T., S. B.). Dublin. 



0. lavis. — Bare. Carrickfergus ; Lame ; not nearly as common as in 

 Dublin. 



0. Deshayesii (Savigny). — ^This species, new to Ireland, occurs not un- 

 commonly, but very locally, near Carrickfergus. It is less active than 

 either of the others. I met it cdso at Crawfordsbum. In England, 

 Spence Bate informs me, it is rare as a southern species. I com- 

 pared my specimens with that in the British Museum, and they are 

 identical. Whether they are identical with the Egyptian species, is 

 still open to doubt, as the type specimen has, I have been informed, 

 been lost. 



MontaguamonoeuloidM. — Bangor; Belfast Bay (W. T., S. B). 



Lysianassa Costa. — Bangor, one specimen; Belfast Bay (W. T., S. B.). 

 Bray, Eish Bank. 



Lysianassa longicornis, — Portaferry (W. T., S. B.). 



V 



