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the 5''^ pair are, trom their base to the end of the carpus, 26 mm. long (the two last joints 

 are missing), a distance about as long as that from the tip of the rostrum to the 5"^ abdominal 

 somite. The carapace is broken, but the rostral carina reaches to nearly the posterior margin 

 of the carapace. The two branches of the petasma are not yet united. 



Characteristic of this species is its rusty yellow colour in spirit. 



General d i s t r i b u t i on : Off the Aru Islands (Spence Bate); off the Philippines 

 (Spenxe Bate) ; Bay of Bengal (^Alcockj. 



f 12. Haliporus Sióogae de Man. 



J. G. DE Man, in: Notes from the Leyden Museum, Vol. XXIX, 1907, p. 138. 



Stat. 38. April I. 7°35'.4S., 117° 28.6 E. Flores Sea. 521 m. Coral. 13 males, 10 females. 

 Stat. 74. June 8. 5° 3.55., 119° o' E. Strait of Makassar. 450 m. Globigerina ooze (obviously 



a thin layer). 13 males, 11 females. 

 Stat. 212. September 26. 5° 54'. 58., 120° 19'. 2 E. Banda Sea. 462 m. Fine grey and green 



mud. r very young female. 

 Stat. 256. December II. 5°26'.6S., I32°32'.5E. Near Kei Islands. 397 m. Greyish green mud. 



I male, 4 females. 



A remarkable new species of the same large size as Halip. rolmshis (S. I. Smith), the 

 male attaining a length of 165 mm. (carapace with the rostrum 52 mm., abdomen 113 mm.), 

 the female one of 175 mm. (carapace with the rostrum 58 mm., abdomen 117 mm.), but 

 appertaining to Professor Bouvier's second section of the genus, a section represented by two 

 species in the tropical and subtropical Atlantic, but not yet observed in the Indopacific. Carapace, 

 rostrum included, about one-third the total length, cylindrical, nearly as high as broad, slightly 

 narrowed in front. The entire surface of the carapace, the abdomen and some appendages are 

 densely covered with a close tomentum of very short, curved setae; these setae are 0,2 — 0,22 mm. 

 long and on either side beset with smaller setulae, that regularly become shorter towards the 

 extremity. Rostrum, as in Halip. ciirvirostris Sp. Bate, falciform, at first ascending until just 

 beyond the middle, then curved downwards : it usually reaches just beyond the i^' joint of the 

 antennular peduncle, sometimes to the middle of the 2""^', in one adult male it extends even 

 to the far end of this joint. In addition to a small, epigastric tooth, one and a half as far 

 distant from the frontal border of the carapace as from the upper extremity of the cervical 

 groove, the upper margin of the rostrum is armed usualh^ with 6 teeth, sometimes with 7 

 and in two females even with 8 ; the rostrum of a male and of a female, that bears only 5 

 teeth, is probably abnormal. Of these teeth the small first one is situated on the carapace, 

 immediately behind the frontal border, its distance from the likewise small 2"^^ tooth measures 

 about two-thirds the distance between the i *' tooth and the epigastric tooth ; the 3"^ is half 

 as far distant from the 2"<^ tooth as the 2"^^ from the i=', the distances between the following 

 are smaller, often progressively decreasing, often unequal, rarely, as in an adult male from 

 Stat. 38, the foremost tooth appears slightly longer than the penultimate. The three or four 

 anterior teeth are usually slightly larger than the 1*' and the 2"*^; the foremost tooth is as far 

 distant from the tip of the rostrum as from the penultimate, sometimes the foremost tooth 



38 



