26 G. 0. SARS. [SEC. ARC. EXP. FRAM 
distal joint considerably narrowed in its outer part, spine of outer edge 
unusually short and attached beyond the middle, tip provided with a 
small spine and a long flexuous seta. Last pair of legs with the distal 
joint rather small, inner expansion of proximal joint well developed, 
but provided with only 3 short sete. 
Length of adult female about 1 mm. 
Remarks. — This form is nearly allied to D. vulgaris, but is of 
considerably larger size, in which respect it about equals D. thisboides 
Ciaus. From both these species it is distinguished by the very broad 
rounded form of the distal joint of the last pair of legs in the female, 
as also by the more strongly built 1st pair of legs. From D. thisboides 
it moreover differs by the distinctly 9-articulate anterior antenne. The 
structure of the inner ramus of the 2nd pair of legs in the male differs 
also conspicuously from that in the 2 species mentioned. 
Occurrence. — This form was found rather abundantly in a 
bottle of specimens taken on July 30, 1900 (the exact locality not indi- 
cated). It also occurred occasionally in some of the other bottles. 
100. Dactylopusia brevicornis, Cts. 
Some specimens of this distinct species occurred in a bottle of 
specimens taken on July 12, 1900, in the bay at Land’s End. 
101. Zdomene coronata (Scott). 
(Pl. VI). 
Dactylopus coronatus, Tu. Scort, Additions to the Fauna of the Firth of 
Forth. 12th. Ann. Rep. of Fish. Board for Scotland, Part ILI, p. 255, 
Pl. IX, figs. 12—90. 
Specific Characters. — Female. Body short and stout, pro- 
nouncedly depressed, with the anterior division broad and expanded, 
oval in outline. Cephalic segment large and evenly rounded in front, 
rostral projection somewhat deflexed, lamellar, obtusely rounded at the 
tip. Epimeral plates of the 3 succeeding segments sub-imbricate and 
acutely produced at the hind corner. Last pedigerous segment much 
narrower than the preceding ones, and without distinct epimeral plates. 
Urosome short, scarcely more than 1/3 as long as the anterior division, 
and much narrower, genital segment, as usual, the largest and, like 
the 2 succeeding segments, finely spinulose at the hind edge laterally. 
Caudal rami scarcely longer than they are broad, and spinulose at 
the inner corner, innermost apical seta not spiniform and shorter than 
the outermost, the 2 middle sete slender and elongated. Anterior 
antenne short and stout, 7-articulate, and densely clothed with sete, 
