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segment is produced posteriorly and the distal ends are narrowly rounded. The fifth segment 

 is of moderate size and is broadly funnel-shaped. The distal part is greatly expanded. 



The abdomen is composed of four segments. The combined length of the abdomen 

 and furcal joints is contained two and a half times in the total length of the cephalothorax, 

 from the frontal margin to the distal end of the fifth thoracic segment. The genital segment 

 is large and is considerably swollen in the middle. It is distinctly longer than the combined 

 length of the next three segments and furcal joints. The second, third and fourth segments 

 are short and are of nearly equal length. The furcal joints are about as long as broad and 

 are slightly shorter than the anal segment. The joints are furnished with one outer marginal 

 seta and four apical setae (Plate LXVIII, fig. n). 



The antennules are slender and seven-jointed. The fourth and fifth joints are of nearly 

 equal length (Plate LXVIII, fig. 12). 



The antennae are four-jointed. The apex of the fourth joint is furnished with two short 

 curved claws and three setae. The outer claw is much stouter than the inner claw (Plate 

 LXVIII, fig. 13). 



The apex of the mandible is stylet-shaped. The intermediate region is broadly triangular 

 in shape and is distinctly cleft. The margins are fringed with short spines (Plate LXVIII, 

 fig. 14A). 



The maxillae are elongate and narrow. They are furnished with one marginal seta and 

 three apical setae. 



The apex of the first pair of maxillipedes is stylet-shaped. The upper margin is pectinate. 

 A moderately long setiferous spine is attached to near the base of the inner margin. The 

 basal joint is short and broad (Plate LXVIII, fig. 15). 



The second pair of maxillipedes is three-jöinted. The last joint is very small. It is 

 furnished with one small curved spine and three short setae (Plate LXVIII, fig. 16). 



The exopodites and endopodites of the first three pairs of feet are three-jointed. The 

 exopodite of the fourth pair of feet is three-jointed. The endopodite is two-jointed. 



The fifth pair of feet is moderately long and narrow. Each foot is fully three times 

 longer than broad and is furnished with two apical setae (Plate LXVIII, fig. 19). 



Male — length 1,1 mm. 



The male resembles the female in general appearance, but the abdomen is composed of 

 five segments. The genital segment is large and is greatly inflated. The second pair of maxilli- 

 pedes is strongly prehensile. The terminal claw is long and curved (Plate LXVIII, fig. 17). 

 The fifth pair of feet is comparatively small. 



The females of this species can readily be identified by their shape, by the elongate 

 and slender fifth pair of feet, and by the short sub-equal second, third and fourth segments of 

 the abdomen. 



Twenty-one females and three males were found attached to a Nudibranch collected at 

 Station 301, Pepela Bay, East Coast of Rotti Island. The label in the tube was marked 'On 

 Nudibranch, Fig. 273'. 



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