I. '21. 28 



the first right leg there are teeth on the lower edge of the merus 

 and on the upper edges of the carpus and propodite. In the 

 second right leg the merus is unarmed below, there is one 

 distal tooth, rarely one or two others, on the upper border of 

 the carpus and none in a similar position on the propodite. In 

 the first left leg there are few if any inferior teeth on the merus. 

 a distal tooth and occasionally one or two others on the upper 

 edge of the carpus and none on the upper edge of the propodite. 

 In the second left leg the only teeth present are those on the 

 carpus, one at the distal end of the upper border and rarely 

 one or tw^o others. In all the legs of the first two pairs there 

 is a thick coating of setae on the lower surface of the merus 

 and on the upper parts of the carpus, propodite and dactyl. 

 The dactyl is the longest joint, stout and curved, and with 

 about ten to seventeen slender corneous spines on the under 

 side of its distal half, closely pressed against the lower edge. 



The fourth pereiopods bear long setae and are imperfectly 

 chelate. The imbricate area is large and broad with long, 

 sharp, tooth-like scales. The dactyl ends in a sharp claw, 

 preceded by a row of narrow pointed spines. The fifth pereio- 

 pods are similarily setose ; the imbricate area is broad and 

 the chela very small. 



There are four rather long and densely setose pleopods on 

 the left side of the abdomen in both sexes. The uropods are 

 normal in type. 



Size. — In the largest specimen obtained by the Helga the 

 carapace is 14 mm. in length. 



General Distribution. — The species ranges over an area 

 extending from Norway and the British coast to the Mediter- 

 ranean and the Canary Islands. It has been recorded from 

 Bergen (Sars), Bohuslan (Lagerberg), Vaderoarne (Goes), Gul- 

 Imaren (Stuxberg), the Kattegat (Stephensen), the Shetlands 

 (rare, Norman), Moray Firth, Firth of Forth, St. Andrew^s, 

 Firth of Clyde (Henderson, Balfour, etc.). Isle of Man (Eyton), 

 Northumberland and Durham (Norman and Brady), Plymouth 

 (Marine Biol. Assoc), Channel Islands (Norman), St. Vaast- 

 la-Hougue, Cherbourg, Concarneau (Bouvier), Mediterranean 

 (Heller, Lucas) and the Canary Islands (Milne-Edwards and 

 Bouvier). 



Vertical Distribution. — Eupagurus cuanensis is rarely found 

 while shore collecting and seems to prefer depths of about 

 4 to 15 fathoms. It extends, however, into deeper water ; 

 on the south coast of Ireland it has been taken in 41-42 fathoms ; 

 off Lambay Island in 44 fathoms ; and, in the Bay of Biscay 

 in 50 fathoms. 



Irish Distribution. — The species is mentioned in Kinahan's 

 Dublin List and is recorded from Belfast and Galway by 

 Thompson and Melville, respectively. The Helga has taken it 

 on numerous occasions in Blacksod Bay, in Galway Bay, at 

 Ballynakill, and in 15-25 fathoms off the mouth of Dublin 

 Bav, other records are : — 



