292 TRANSACTIONS LIVEEPOOL BIOLOGICAL SOCIETY. 



Port Erin, electric light, 20/5/88. One young. [Galley 

 Head, one adult male. Length 14 mm.] 



Orchomenella ciliata, Sars = Tryphosa ciliata, Sars. 



Between Isle of Man and Liverpool, 30 fath. ; Puffin 

 Island, 15 f. ; Colwyn Bay, 2J f., 1/2/90; off Port Erin, 

 15 to 20 f., 24/3/94. [Galley Head, one male. Length 

 3Jmm.J 



Nannonyx goesii (Boeck) = Orchomene goesii, Boeck. 



Puffin Island, low water spring tide, 8/8/88. Length 

 2J mm. 



N. spinimanus, n.sp.* (PL XYIIL, figs. 1 — 11). 



Menai Bridges, 2/4/94 and 31/5/94, rocky bottom, 

 5 to 8 f. 



This species falls into the genus Nannonyx, G. 0. Sars, 

 except as to the maxillae, maxillipedes, gnathopoda and 

 pereiopoda. In these there are more or less important 

 differences but not sufficient in my opinion to constitute 

 a new genus. 



Body short and thick. Head as long as first segment 

 of per. lateral angles produced and rounded. Anterior 

 coxal plates about as deep as the body, angles rounded. 

 Third pi. seg. with hind margin straight, serrate, hinder 

 angle rather acute with the point blunt ; fourth seg. with 

 a prominent rounded hump, fifth very short. 



Ant. 1 with first joint of ped. longer than the two next, fi\ 

 seven-jointed, the first as long as the remaining six, 

 second short and wide, ace. app. four-jointed the first 

 longer than the remaining three and as long as first joint 

 of fl. which is very hairy. 



Ant. 2 slender, fl. in both sexes five-jointed and shorter 

 than ped. 



* Walker, A. O., Rep. on Marine Zool. of Irish Sea. Brit. Ass., 1894, 

 p. 327. 



