98 Rev. A. M. Norman on some Crustacea 



of inner margin, but eight or more distal spines without such 

 smaller spines between them. 



This species has been known to me as a member of our 

 fauna for the last twentj-five years, at which time I found it 

 at Cullercoats, Northumberland. Specimens are also in my 

 collection from Banff (T. Edward); Starcross, Devon {0. 

 Parker, 1883) ; Jersey {Sinel and Co., 1884). 



It is recorded in ' The Life of a Scotch Naturalist ' under 

 the name Mysis aculeata, a MS. name by which I had called 

 the female when first found. 



Cynthia Flemingii, Goodsir, is a male of this genus, and 

 most probably of this species ; but it is impossible to identify 

 it with any degree of certainty from the description given. 



In the Mediterranean this species was found by Sars in 

 company with ^S*. Clausii at Goletta. 



[Dec. 15, 1886. — Since received by me from St. Andrews 

 [Dr. M'Intosh).] 



Siriella Broohi, Norman, n. sp. 



Very like the three species which have just been described. 

 The rostrum is shorter and bent downwards at the extremity. 

 The antennules have one seta on inner margin of last joint of 

 peduncle. The per^opods are intermediate in thickness 

 between those of Clausii Sindi crassipes, the finger strong, the 

 first joint not longer in its lesser (front) length than its 

 breadth, second joint or nail strong and well curved. Telson 

 terminating in a small spinule, flanked on each side by the 

 usual setaj, and a very minute spinule between the ultimate 

 spines. Uropods narrow, outer pair with ten to twelve spines 

 on exterior margin of first joint ; terminal joint twice as long 

 as broad. Inner uropod with seven or more distal spines of 

 interior margin without smaller intermediate spines, and even 

 above these they only become decidedly smaller by degrees. 

 Colour of specimens, which had been a few days in spirit, 

 white, the eyestalks and peduncles of antennge suffused with 

 yellow ; telson and uropods more or less stained with yellow 

 or pink. Length from the end of antennal scale to extre- 

 mity of uropod rather more than half an inch, or 14 millim. 

 About a dozen specimens, including both sexes, examined. 



Very near to crassipes, from which it differs in being more 

 slender in general form, with less strong peraeopods, and a 

 single seta only on inner margin of ultimate joint of peduncle 

 of antennules. 



Possibly it may prove to be a variety of crassipes; but 

 more extended observation is necessary to clear up this point. 



With regard to the number of setae on iinier side of last 



