I 27 



Stat. 95. June 26. s='43'.5 N., ii9°4o'E. Sulu Sea. 522 m. Stony bottom, i male. 

 Stat. 105. July 4. 6°8'N., i2i° 19' E. Sulu Sea. 275 m. Coralbottom. i adult egg-laden female. 

 Stat. 253. Dec. 10. 5°48'.2S., 132° 13' E. W.est of Kei-islands. 304 m. Bottom grey clay, hard 

 and crumbly, i male. 



Unfortunately in the adult female (Fig. 27) the rostrum is broken off near the distal extremity 

 of the antennular peduncle. The very low dorsal crest commences nearly at the anterior third of 

 the carapace, which, posterior to it, is rounded and which is 10 mm. long; the r' tooth, which 

 is very small and the smallest of all, stands at one-fourth the length of the carapace from its 

 orbital margm, the four following slightly increase in length and are all placed on the carapace: 

 the four first teeth seem to be movable. The 6"' tooth is much larger than the carapacial teeth 

 and stands above the orbital margin, the three following are of the same size as the 6^^, near 

 the 9''i the rostrum is broken off. The carapace of the male (Fig. 2ye) is 7,5 mm. long, the rostrum 

 10 mm., -when measured in a straight line from the orbital margin to the apex, almost one 

 and a half the length of the carapace; from the orbital margin the rostrum runs horizontally 

 forward as far as the distal e.xtremity of the antennular peduncle and from here it is a little 

 and obliquely turned upward; the rostrum is not widened at base and tapers regularly to the 

 pointed apex. Like in the female there are 5 movable teeth on the carapace, closely set, 

 of which the 1*' is the smallest, the 2"'^ twice as long as the !=■', while the three followino- 

 slightly increase in length; the 6''> tooth, fixed like the following and placed above the orbital 

 margin, is comparatively smaller than in the full-grown female and but little larger than the 

 5"^ movable tooth. The 6"' tooth is followed by four teeth of equal size, of which the anterior 

 stands near the distal extremity of the antennular peduncle; from here to the apex four smaller 

 teeth occur, that gradually diminish in size anteriorly, while also the distances between these 

 teeth become gradually smaller. The lower margin is armed with 6 teeth, the i'^' at the far 

 end of the antennular peduncle, while the distances between them slightly diminish in length. 



Antennal spine small, not yet reaching to the anterior margin of the 2"'' joint of the 

 antennal peduncle, branchiostegal spine minute. 



Abdomen nearly 4-times as long as the carapace. Posterior margin of 3'''^ tergum moderately 

 produced. Sixth somite almost twice as long as 5'*^ : in the full-grown female the 6''> somite is 

 7,4 mm. long, the 5''^ 4 mm., in the male these numbers are 5,4 mm. and 2,5 mm.; in the 

 female the telson without terminal movable spines is j^y mm. long, in the male 5,7 mm., 

 appearing .slightly longer than the 6''* somite. The telson has 3 pairs of side spines above, it 

 is as long as the inner uropod, but shorter than the outer. 



The eyes are described by Miss Rathbun as considerably larger than those of a species 

 which she is inclined to refer to P/es. ocellus, in the present specimens they are, however, of 

 a moderate size; in those of the female (Fig. 27^) the transverse diameter (2,8 mm.) is little 

 more than one-fourth the length of the carapace and this diameter is slightly longer than the 

 axial. Ocellus also of moderate size, broadly in contact anteriorly with a process from the 

 cornea dipping towards it. 



Antennular peduncle reaching to the middle of the antennal scale; si""^ joint a little longer 

 than 2"'', stylocerite pointed, as long as basal article, flagella subec|ual, the longer nearly as 



