2o; 



long as the exopodite. The first joint is broad and is distinctly longer than the second joint. 

 The second joint is much contracted at the apex. It is furnished with one apical and two 

 subapical setae (Plate LXIY, hg. 18). 



The second. third and fourth pairs of feet are similar to those of Peltidium purpurêum. 



The hfth pair of feet is small and slender. The inner margin of the second joint is 

 produced into a small tooth at the distal end. The outer margin is furnished with three moderately 

 strong setae. The apex bears a single stout seta (Plate LXIV, hg. 19). 



Male unknown. 



Occurrence. — One specimen was found in the washings from dredged invertebrata 

 collected at Station 226, between the Lucipara and Schildpad Islands, from a depth of 1595 metres. 



Genus Eupelte Claus, 1860. 



This genus was established by Claus in 1860 for a Harpacticoid with a broad depressed 

 body and closely related to Alteutha, but having the endopodite of the first pair of feet composed 

 of two joints. The mandible palp is one-branched and two or three-jointed. The fifth pair of 

 feet is biarticulate. The species described by Claus have not, so far, again been met with, and 

 owing to the rather imperfect illustrations given by that author much doubt has existed reo-ardino- 

 the true character of the first pair of feet. 



One species agreeing with Eupelte in possessing a slender two-jointed endopodite to 

 the first pair of feet, but differing in the antennules being seven-jointed, in the mandible palp 

 being distinctly two-branched, and in the fifth pair of feet being only one-jointed, was obtained 

 from the material collected by the 'Siboga' in the Malay Archipelago. 



The difference of the jointing of the antennules is not of very great importance in a 

 generic distinction. The presence of a small secondary branch to the mandible palp may have 

 been overlooked by Claus. The two-jointed appearance of the fifth pair of feet may have been 

 due to some defect in the preparation. The possession of a two-jointed endopodite by the first 

 pair of feet is a very important character and is the chief reason for placing the 'Siboga' species 

 in the genus Eupelte. 



1. Eupelte oblivia nov. sp. Plate LXVI, figs. 1 — 12. 



Female — length .74 mm. 



Seen from above, the body appears short, wide and depressed. It is broadly oval in 

 outline. The greatest width lies near the distal end of the cephalic segment and is equal to 

 three-fourths of the length of the entire animal. The cephalic segment is large and represents 

 one-half of the length of the Copepod. The distal ends are slightly produced and pointed. The 

 distal ends of the first three thoracic segments are also pointed. The rostrum is large and 

 moderately prominent. The frontal margin is somewhat truncate. 



The abdomen is composed of four segments. The genital segment is very large and is 

 broadly triangular in outline. The distal ends of the segment are produced into small points 

 that extend to the end of the anal segment. The second, third and fourth segments are short 

 and narrow. The furcal joints are very short. The joints are about as broad as long. The outer 



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