342 



the hand in length. 1st pair of legs with the inner ramus much shorter than 

 the outer, its proximal joint short, unarmed, the distal one oblong in form and 

 carrying 3 setae, and at the outer corner a strong spine. Inner ramus of the 3 

 succeeding pairs only slightly exceeding half the length of the outer. Last pair 

 of legs with the distal joint narrow oblong in form and carrying 7 unequal setae, 

 proximal joint with a long setiferous process outside, inner part not expanded, 

 and provided with only a single plumose seta. 



Male unknown. 



Colour whitish grey. 



Length of adult female 0.49 mm. 



Remarks. This form was described in the year L902 by Th. Scott as 

 the type of a new genus, the external resemblance of which to some of the Cle- 

 todidce (Mesocletodes irrasus) was also noted. 



Occurrence. Some specimens of this form, all of the female sex, were 

 found at Farsund and Korshavn, south coast of Norway, in depths ranging from 

 20 to 50 fathoms. 



Distribution. Scottish coast (Scott). 



nded, 



Gen. 81. ArgeSteS, 1 ) G. 0. Sars, n. 



pre- 



Generic Characters. General form of body resembling that in the 

 ceding genus. All integuments remarkably thin and soft. Genital segment in 

 female imperfectly subdivided; anal segment rather large. Caudal rami ver 

 small. Anterior antennae of a structure similar to that in Fultonia, but rather 

 shorter. Posterior antennae with the proximal joint distinctly subdivided; outer 

 ramus small, but well defined. Mandibles with several teeth outside the inner 

 lamella of the cutting edge, palp distinctly biramous. Maxillae and posterior 

 maxillipeds nearly as in Fultonia; anterior maxillipeds, however, less fully developed, 

 with only a single setiferous lobe and a slight rudiment of a 2nd inside the 

 claw-bearing joint. 1st pair .of legs with both rami distinctly 3-articulate and 

 subequal in size. The 3 succeeding pairs resembling in structure those in Ful- 

 tonia, inner ramus, however, comparatively larger. Last pair of legs likewis 

 built after the same type as in that genus. 



Nomen proprium. 



