EURYNOME ASPERA. 47 



branchial region, and one on the centre of the cardiac. 

 The latter, which is smooth and polished, is surrounded by 

 ten others, which are warty, arranged in an oval form, five 

 on each side. The external antennae are not longer than 

 the rostrum. The basal joint, as in the Maiada, is sol- 

 dered to the surrounding parts ; in which respect it differs 

 from that of some other genera of the family in which it 

 is detached ; it is triangular, and the moveable portion is 

 inserted at its apex, and does not extend beyond the ros- 

 trum. The second and third joints are oval, and nearly 

 equal. The external pt-di palps have the second joint 

 oblong-quadrate ; the third has the outer angle produced, 

 and the inner angle truncate and emarginatc. The an- 

 terior legs in the male are nearly twice as long as the body, 

 and much larger than the succeeding ones, the arms and 

 hands long, the wrists short, the fingers long and inflected. 

 In the female they are but little larger, and scarcely 

 longer than the second pair. The whole are covered 

 with tubercles. The abdomen in the male is tubercu- 

 lated and carinated ; the terminal joint triangular. In 

 the female it is oval, carinated, and the margin broadly 

 ciliated. 



The length of a very fine male specimen is about nine 

 lines, and its breadth seven lines. Its colour is a light 

 rose, intermixed with a slight tint of blueish-grey. 



The Eurynome aspem, which is one of the rarer of the 

 British Crustacea, inhabits deep water, having been dredged 

 in seventy fathoms. It has been taken by dredging, or by 

 the trawl on the coasts of Cornwall, Devonshire, Dorsetshire, 

 and Sussex. I find by my own notes that I took a speci- 

 men in Swanage Bay, in Dorsetshire, some years since, but 

 it has been lost. It has also been dredged off the Isle of 

 Man, and in Loch Fyne, by Mr. McAndrew, to whom I 



