72 



having the middle joint acutely produced at the end outside. Last pair of legs 

 much reduced in size, distal joint rather narrow and only provided with 4 

 seta; inner expansion of proximal joint obsolete. 



Colour not yet ascertained. 



Length of adult female 0.60 mm. 



Remarks. This form seems to be nearest allied to L. macera G. O. Sars, 

 but is of somewhat larger size, and moreover at once distinguished by the 

 less elongated caudal rami. The shape of the last pair of legs is also rather 



different. 



Occurrence. Several specimens of this form, both males and females, 

 were picked up from samples taken at Korshavn at depths ranging from 30 to 

 50 fathoms. 



59. Laophonte abbreviata, G. O. Sars, n. sp. 



(PI. XLVIII). 



Specific Characters, Female. Body quite unusualy short and stout, 

 and pronouncedly depressed in its anterior part. Cephalic segment of very 

 large size, far exceeding in length the remaining part of the trunk, being 

 broadest behind and gradually somewhat contracted in front; rostral projection 

 rather prominent and somewhat blunted at the end, which appears slightly 

 bilobular. Urosome somewhat tapered behind, and about the length of the 

 cephalic segment; lateral expansions of the segments comparatively small, but 

 well difined and densely spinulose at the edges; last segment, as usual, not 

 expanded and about twice as broad at it is long; anal opercle distinctly denticulate 

 at the edge. Caudal rami of moderate size, about the length of the anal 

 segment, and somewhat divergent; apical setae rather slender. Anterior antennae 

 moderately long and composed of 7 well defined joints, the 2nd of which is 

 the largest and oval in form, without any distinct projection of the outer edge. 

 Posterior antennas with the outer ramus normally developed, somewhat widening 

 distally and provided with 4 subequal ciliated setae. Posterior maxillipeds 

 rather powerful. 1st pair of legs likewise comparatively strongly built, with 

 the outer ramus distinctly 3-articulate, and extending consideratly beyond the 

 middle of the proximal joint of the inner. The 3 succeeding pairs of legs of 

 normal structure. Last pair of legs, however, rather peculiar; distal joint com- 

 paratively large and almost perfectly orbicular in outline, carrying 6 rather 

 short setae, 2 of which are attached somewhat inside the edge; inner expansion 

 of proximal joint quite short, with 5 marginal setae, the outermost one very small. 



