303 



but less prominent in the middle; spinules of upper surface large, 

 arranged as in Sy?}. hiunguiculatus. 



Antennular peduncle in the male 4,4 times, in the female 

 4 times as long as wide, the three articles being in the proportion 

 of 7:4:3 in the male, while in the female the Ist is one and 

 a half as long as the 2nd, the 2nd hardly longer than the 3rd. 

 The stylocerite, the carpocerite which is 5 times as long as wide, 

 the scaphocerite and the spines of the basicerite about as in Syn. 

 hiunguiculatus. Relative dimeusions of large chela: fingers 1, total 

 leugth 3,7, height 1,33; auterior margin of the palm with au 

 obtuse tubercle. Proportion between the leugth of both chelae 

 2,4. Relative dimeusions of small chela; fingers 1; total leugth 

 3,1 ; height 0,92. Dactylus tapering, its outer margin fringed 

 with stiff setae. 



Carpus of 2üd legs stout, Ist segment 2,75 times as long as 

 thick distally, the sum of the four followiug one fourth longer 

 than Ist segment. 



Relative dimeusions of 3rd pair as in Syn. hiunguiculatus, but 

 the meropodite 4 times as long as wide, the propodite 5 times ; 

 dactylus a little more than '/^ the propodite, dorsal hook one 

 aud a half as loug as the ventral, uotch between both concave 

 at its base. 



Ova 0,75 mm. loug. Leugth of the male 15 mm., of the ova- 

 bearing female 14 mm. 



17. Jousseaumea Sibogae, n. sp. 



Station 225. 5700 M. N. 279° E. from South point of South- 

 Lucipara-islsnd. Reef-exploration. 



Rostrum triangular, acuminate, '/4 longer than wide at base, 

 extending a little beyond the middle of 3rd antennular article, 

 upper surface slightly convex, not carinate; extra-corneal teeth 

 as in Jous. serratidigitus Cout., measuring '/^ the leugth of the 

 rostrum, their iuterual margin making a right angle with the 

 lateral margius of the rostrum. Antennal regiou as in that 



21 



