ON THE MARINE ZOOLOGY OF THE IRISH SEA. 459 



* Hemilamj)ro2^s assimilis, Sai's. — Off Galley Head, Co. Cork, Novem- 

 ber 24, 1894. 



*Eudo7-eUa nana, Sars.- — Off Port Erin, August 7, 1894, stations 1 and 

 2; 30-38 f. mud. 



*DiastyIis rugosoides, n. sp. — Galley head, six males. Very near D. 

 rugosa (Sars), from which it differs in the absence of the vertical plica on 

 the carapace, and in the strong dorso-lateral teeth on the first three pleon 

 segments. 



ISOPODA. 



Cirolana borealis, Lilljeborg. — Galley Head ; off Port Erin, April 25, 

 1895, station 2. 



Amphipoda. 



A small collection has been made by Mi\ R. L. Ascroft, of Lytham, 

 from trawl refuse and a tow-net attached to the trawl beam when working 

 in the southern part of the Irish Sea off Galley Head. The most interest- 

 ing feature of it is that nearly all the specimens are adult males, in which 

 condition amphipods are less often taken than any other. This may 

 perhaps be attributed to their having been taken late in November, a 

 season at which collectors do not generally dredge. 



Parathemisto oblivia, Kroyer. — Galley Head. 



CaUisoma crenata, Bate. — Galley Head ; off Port Erin, April 25, 1895, 

 station 1. 



Hipjjomedon denticulatus, Bate. — Galley Head. 



Orcliomenella ciliafa, Sars. — Galley Head. 



Tryphosites longipes, Bate. — Galley Head. 



Lejndepecreion carinatum, Bate. — Galley Head. 

 *Faraphoxus oculntus, Sars. — Off Port Erin, April 25, 1895, stations 1 

 and 2. 



Harjnnia heris, Sars. — Off Port Erin, July 8, 1894, 7^ miles west of 

 Niarbyl Point, 45 f. mud. 



Epimeria cornigera, Fabr. — Galley Head. 



Syrrha'e Jimbriuta, Stebbing and Eobertson. — Off Port Erin, April 25, 

 1895, station 1. 



Leptocheirus hirsutimanus, Bate=Z. pnlosus (Sars nee Zaddach). — ■ 

 Two miles south-east of Kitterland, 17 f.. May 27, 1894. 



Photis longicaudatus, Bate. — Off Port Erin, April 25, 1895, stations 

 2 and 3. 



* Photis polleu', n. sp. — Colwyn Bay, shore; Little Orme; Menai Straits, 

 5-10 f. This species is intermediate between Photis Reinhardi (Kroyer) 

 and P. tennicornis (Sars). The hind margin of the propodos of the second 

 gnathopod in the male is distally produced into a thumb-like process which 

 has its origin much nearer the carpus than in P. Reinhardi. 



Podocerus ocius, Bate. — Sponge debris, Port Erin, 1894. 



SOME STATISTICS OF DREDGING RESULTS. 



During this year's work we have been paying some attention to the 

 actual numbers of individuals, species, and genera brought up in 

 particular hauls of the dredge or trawl. Our attention has recently been 

 directed to the matter by some statements in Dr. Murray's ' Summary * 



