1898-1902. No. 18.| CRUSTACEA. 97 
some of which are rather coarse and spinulose at the edges, terminal 
part 3-articulate and scarcely longer than the 2 preceding joints com- 
bined. Posterior antenne of a similar structure to that in the type species. 
Mandibular palp, however, less fully developed, with the rami shorter, 
none of the sete of the outer ramus spiniform. Posterior maxillipeds 
rather strong, with an oblique series of small spinules crossing the base 
of the hand. 1st pair of legs built on the same type as in L. forficata 
Puiuirrl, though having the 1st joint of the inner ramus less dilated 
and the outer 2 joints more produced, exceeding, when combined, half 
the length of the 1st. Natatory legs scarcely different in structure from 
those in the type species. Last pair of legs, however, rather unlike, 
distal joint confluent at the base with the proximal one and broadly 
rounded at the end, marginal sete 5 in number, the 2 outermost re- 
markably strong and curved, spiniform, and edged outside with coarse 
cilia, the other 3 sete long and slender; inner expansion of proximal 
joint extending as far as the distal joint and obtusely truncated at the 
end, carrying 5 rather unequal sete, the outermost but one very long 
and slender, the innermost but one quite short. Ovisac comparatively 
large, extending far beyond the tip of the caudal rami, and oval in form. 
Length of adult female 0.66 mm. 
Remarks. — This is certainly not a Dactylopusia, as believed by 
Tu. Scorr, but seems to me more properly to be referable to the genus 
Idomene of Putuiprt, though differing from the type species, L. forficata 
rather conspicuously in some points, especially as regards the structure 
of the mandibular palp, the last pair of legs and the caudal sete. 
Occurrence. — A solitary female specimen of this form was 
found in a bottle of specimens taken on July 18, 1901, at the mouth 
of Gaase Fjord from a depth of about 60 m. 
Distribution. — Scottish coast (Scor7). 
102. Amenophia peltata, Borcx. 
Some few specimens of this easily recognizable form occurred in 3 
of the bottles examined. 
103. Westwoodia assimilis, G. O. Sars. 
A solitary specimen of a moderately large Westwoodia, which 
according to the distinctly bi-articulate outer ramus of the ist pair of 
legs, must be referred to the above species described by the present 
author from the Norwegian coast, was found in a bottle of specimens 
taken on July 12, 1900, in the bay at Land’s End. 
