36 



As well in the females referred to Halip. aeqiialis as in those of the present species 

 there is a transverse vertical plate on the sternum between the legs of the 4'^ pair; but, 

 while the upper margin of this plate is sharp and cutting in Halip. aeqiialis, the plate is 

 much thicker, less compressed and its upper border obtusely rounded in this new species, 

 the upper border is moreover a little hairy. One observes, behind this plate, in the specimens 

 of Halip. aeqjtalis, two compressed processes with rather sharp upper edge, but in Halip. 

 propinquus they have a different form, presenting a slightly concave, upper surface. Instead 

 of the low and flattened, shield-like plate that exists between the 5''^ legs of Halip. aequalis, 

 one observes, in Halip. propinquus^ a much thicker and higher transverse tubercle, 

 the postero-lateral angles of which are somewhat conical with obtuse tip; the convex, anterior 

 side of this tubercle is a little pubescent. The tubercles that bear the openings of the oviducts 

 are as large as and equal to those of Halip. aequalis. 



Exopod of 2"'^ maxillipeds slender, as long as the merus, those of the 3''' pair like also 

 those of all the pereiopods quite rudimentary. 



10. Haliportcs obliqiiirostris Sp. Bate. 



C. Spence Bate, Report Challenger Macrura, 1888, p. 2S6, PI. XLI, Fig. 2. 



Stat. 262. December 18. 5°53'.8S., 132° 48.8 E. Near Great Kei Island. 560 m. Solid bluish 

 grey mud, upper layer more liquid and brown mud. i female. 



A full-grown specimen, 120 mm. long, was collected, while the specimens of the "Challenger" 

 measured only 76 mm., little more than half that length. The rostrum, 13 mm. long, barely 

 half as long as the rest of the carapace, measured near the dorsal median line (30 mm.j, is 

 obliquely directed upward, little more than in the "Siboga" specimens of Halip. aeqtmlis; the 

 rostrum that not yet attains the far end of the 2"^ joint of the antennular peduncle, is straight 

 above, whereas Its lower margin is very slightly convex. It is armed above with 6 teeth of 

 which the five foremost are nearly equidistant, but the i^' tooth, situated immediately behind the 

 frontal margin of the carapace, is twice as far distant from the 2"^^ as the 2"<i from the 3"^; 

 in addition to these teeth, the gastric region carries two other teeth, of which the anterior is 

 larger than the posterior and than the teeth of the rostrum proper. There is a distinct, though 

 rather low, post-rostral ridge that fades away about 2 mm. in front of a small conical tubercle, 

 that exists also in Halip. aequalis and that is 1,5 mm. distant from the posterior margin of 

 the carapace. 



The outer angle of the orbits is rounded. Of the four spines on either side of the 

 carapace, the antennal is small, much smaller than the three other spines ; the branchiostegal 

 spine, that is somewhat remote from the anterior border, is slightly larger than the two 

 other spines. 



The 3'''^ abdominal tergum is not carinate, but it is obtusely compressed posteriorly; the 

 4"^ and the 5"^ somites are carinate except a small part of the 4'ii quite anteriorly and the carina 

 of the 6'>> terminates in a small tooth. The telson, about one-third longer than the 6'^ somite, 

 just reaches beyond the apex of the inner uropod ; it is broadly grooved from its base to 



36 



