248 



projecting lobes; dorsal process much shorter that! in L. horr'nht. Rostrum rather 

 narrow, heing scarcely at all dilated in the middle, tip minutely hilohate. The 4 

 succeeding segments rounded laterally, dorsal spines very short and perfectly 

 smooth, edges of the segments not spinulose. Urosome with the lateral expansions 

 of the anterior segments less produced, dorsal spines larger than those of the 

 anterior division; penultimate segment with the hind edge divided dorsally in the 

 middle into 2 well-defined branching appendages, to each side of which 3 densely 

 crowded simple spines occur. Caudal rami resembling in form and structure those 

 in /.. li'iiTtilti. Anterior antennae, as in that species, very slender and 6-articulate, 

 2\\(\ joint however quite simple, without any projection of the hind edge, :>nl joint 

 shorter than the 3 outer joints combined. Posterior antenna? less robust than in 

 I., hnn-'nlit. not attaining the length of the anterior ones, outer ranuis very nar- 

 row. 1st pair of legs likewise of feebler structure, with the proximal joint of the 

 inner ramus scarcely longer than the 2nd basal joint, outer ramus, as in L. hor- 

 /iii/i. Inarticulate. Natatory legs about as in that species. Last pair of legs rather 

 small, with the distal joint almost transversely truncated at the tip; .inner expansion 

 of proximal joint not extending beyond the distal joint; number of seta? on both 

 joints as in the preceding species. 



Mull- with the outer rami of 3rd and 4th pairs of legs far less robust 

 than in L. Iwrridii, setse of inner edge not transformed. 



Colour dark brownish grey. 



Length of adult female about 1 mm. 



Remark*. -This form looks very like the preceding species, and may easily 

 he confounded with it. On a closer examination, it is however found to ditler 

 very markedly in some points, both as regards the armature of the body and the 

 structure of the appendages. 



OrnirrcHcc. I have hitherto only met with this form in 2 localities, vix... 

 Hvalor, at the entrance of the Christiania Fjord, and at Lillesand, south coast 

 of Norway. In both localities it occurred on a muddy bottom, in a depth of 

 about 10 fathoms. 



I'll. Laophonte Koreni, Boeck. 



MM. CLXIX). 



h'm-i-iti. I'....-.'!*, Ny.- Shi'Lit'T Og Art.T at Salt van.lso .|M>|Miilt:r. Clir. Vid. SHsk. l''nr- 



lian.ll. Is7:>. j,. )!. 



^juri/ii- Characters. Female. Body comparatively short and broad, con- 

 spicuously drprc-sed. with the segments sharply marked otV from each other. 



