whole body. Anterior antennae short and thick. 6 -articulate, and densely clothed 

 with slender bristles, 2nd joint the largest, terminal part scarcely longer than the 

 preceding joint. Posterior antennae with the spines of the terminal joint very 

 strong and fringed along one of their edges with unusually long spikes, outer 

 ramus comparatively smaller than in the type species, but otherwise of a very 

 similar structure Oral parts well developed and on the whole agreeing in structure 

 with those in the type species; 2nd basal joint of the anterior maxillipeds, 

 however, rather shorter, and middle joint of the posterior maxillipeds nar- 

 rower. Natatory legs with the inner ramus considerably longer than the outer, 

 being in the 1st pair almost twice as long, and having the middle joint incised 

 at the end in a peculiar .manner. Last pair of legs rather small and resembling 

 in structure those in the type species, distal joint short, quadrangular in form, 

 with the middle seta much longer than the other 2, which are rather unequal in 

 size; inner expansion of proximal joint somewhat curved, and scarcely extending 

 beyond the distal joint, apical setae rather strong, the inner one much the longer 

 and equalling in size the middle seta of the distal joint; appendicular bristle quite 

 short, and issuing from the lower face of the distal joint. 



Colour not yet ascertained. 



Length of adult female 0.90 mm. 



Remarks. This form ought in my opinion unquestionably to be referred 

 to the genus Rradya, and not, as suggested by Th. Scott, to the genus Ectiiw- 

 soma. With the former genus it agrees pretty well in most of the anatomical 

 characters, the structure of the last pair of legs in particular being very like 

 that in Brrulyn tt/jiica. The specific name proposed by Th. Scott is probably 

 derived from the coarse armature of the apical spines of the posterior antennae. 



Occurrence. Some few female specimens of this form were found in 

 samples taken last summer at Farsund from moderate depth. 



Distribution. Scottish coast (Scott). 



Page 47. 

 Add the following new genus: 



EctinOSOmella, G. O. Sars, n. gen. 



Generic Characters. General form of body resembling that in Ectinosoma. 

 Rostral projection forming a very thin, hyaline plate. Anterior antennae 

 small, 6-articulate, basal joint much the largest. Posterior antennae with a 

 spreading fascicle of strong unequal setae issuing from the apex, no lateral spines 

 being present; outer ramus comparatively short, but distinctly 3-articulate. 



J8 Crustacea. 



