230 PROCEEDINGS OP SOCIETIES. 



The second pair (Fig. 6), as also the mandibles (Fig. 3), and other 

 appendages of the mouth, offer no great difference from the same organs 

 in I. obesa. 



Telson (Fig. 7) single, notched at the apex. I have named it after 

 the place of its discovery. 



This crustacean was taken by Professor Kinahan from the gill cavi- 

 ties of Rhizo&toma Cuvieri in Dublin Bay. 



There is undoubtedly much to be learned of the habits of animals 

 that are taken from deep water by the aid of the dredge ; yet from what 

 we do know I am inclined to think that the position in which Iphime- 

 dia Eblance was taken must have been 'one of accident rather than its 

 natural habitat. I have never taken Iscea Montagui except on the back 

 of a crab {Maia squinado) ; and the Isopod Astacella longicorne infests 

 the spines of Echinus sphcera. But these are not parasitic in their ha- 

 bits, such as I. EblancB we must suppose to be, if its natural abode is 

 within the walls of the gill cavities. 



EXPLANATION OF FIGURES. PLATE XVI. 



Fig. 1 , lateral view ; Fig. 2, dorsal ; Fig. 3, mandible ; Fig. 4, max- 

 illiped; Figs. 5 and 5a, first gnathopod; Fig. 6, second gnathopod. 

 Fig. 7, telson.* 



DONATIONS TO MUSEUM, MAY 1, 1857. 



Vere Webb Macnally, Esq. — One hundred specimens of native Le- 

 pidoptera. JVephrops Norvegicus, Dublin Bay. 



William Andrews, Esq., M. R. I. A. — Podiceps cornutus, Lough Ca- 

 ragh, county of Kerry ; eggs of Sula bassana and Ardea cinerea, county 

 of Kerry ; and breast-bone of Grus cinerea, shot in county of Kerry, and 

 presented to this Society some time since by the late M. O'Connell, 

 Esq., M. P. 



JUNE 12, 1867. 



George "Victor Du Noyer, Esq., M. R. I. A. — Echinus lividus (a va- 

 riety), Minard, county of Kerry. 



Richard J.TJssher, Esq., Cappoquin. — Eggs of Fregilus graculus, Otus 

 vulgaris, and Coturnix dactylisonans, county of Waterford. 



W. M'Dougall, Esq. — A black egg of the black East India duck. 



John Robert Kinahan, M. B. — Portunus carcinoides (new species), 

 Valentia ; Pagurus Eblaniensis (new species [?]) ; Porcellana longicor- 

 nis, P. platycheles, Galathea Andrewsii (new species) ; Homarus vul- 

 garis, Crangon fasciatus, Hippolyte pusiola, Pandalus annulicornis, 

 Palcemon squilla, P. varians, Jfgsis vulgaris, Dublin ; Palcemon serra- 

 tus, Palcemon Leachii, Galway. 



* Eight specimens of this species were found by me swimming merrily in the gill 

 cavities of a Rhizostoma, which had been driven ashore, after a high gale, at Merrion, 

 county of Dublin, in the autumn of 1854. The specimens have been unfortunately mis- 

 laid, except that figured above, which is now imperfect — J. R. K. 



