89 



The male from Stat. 314 is 80 mm. long, the carapace, rostrum included, 23,5 mm., 

 the rostrum 5,7 mm., sixth abdominal somite 10,5 mm. long and 5,6 mm. broad, telson 

 11,75 mm. long. The rostrum that reaches to the middle of 3"' antennular article, is \" -dentate ; 

 5 teeth stand on the carapace, the 6"i above the orbital margin, the first 8 teeth are closely-set, 

 the 9"^ appears a little longer, but the foremost tooth is almost twice as long as the penultimate 

 and its distance from the ape.x of the rostrum that is slightly upturned, is a little longer than 

 its distance from the penultimate tooth. Inferior tooth near tip of rostrum. Telson hardly longer 

 than outer uropod. Legs wanting. 



The larger female measures about 56 mm., the carapace, rostrum included, being 16,75 mm. 

 long, sixth abdominal somite 8 mm. long and 4 mm. broad, telson 8,4 mm. long. The rostrum, 

 3,5 mm. long and hardly reaching beyond basal antennular article, is r-dentate-, 4 teeth stand 

 on the carapace, the foremost tooth is somewhat longer than the preceding and a little longer 

 than its distance from the tip of the rostrum which is not upturned. The peraeopods of the 

 I"' pair reach by one-fifth of the carpus beyond the antennal scale, the measurements of the 

 legs are indicated in the Table. The other female is younger and the legs of the i^' pair 

 extend only by Y^, of the carpus beyond the antennal .scale. Rostrum ^ "dentate, reaching to 

 the middle of 2°'^ antennular article. 



The largest of the 4 specimens from Stat. 316 measures 50 mm., the carapace, rostrum 

 included, being 15,5 mm. long. The rostrum, which is 3,1 mm. long, reaches hardly beyond 

 i^' antennular article and the apex is not turned upward; upper margin with 11 teeth, of which 

 the 6''^ stands above the orbital margin and the anterior of which is a little longer than the 

 preceding. The legs of the i^' pair extend by one-third the carpus beyond the scaphocerite and 

 the dactyli of the y^ pair are one and a half as long as the propodus. In another specimen, 

 about of the same size, the rostrum is also ^^ -dentate, but there is a large hiatus between the 

 9"^ and the lo'^ tooth, evidently an abnormality, anterior tooth very small, tip horizontal. Legs 

 wanting. In the two last specimens the i^' pair extend respectively by one-third and one-fifth 

 of the carpus beyond the antennal scale, the rostrum is in the latter l-dentate, in the other Y ; 

 the other legs are also wanting-. 



Table of measurements in millimeters of Xemat. undiilatipes Bate. 



Length from tip of rostrum to tip of telson 

 Length of carapace, including rostrum . . : 

 Length of carapace without rostrum .... 



Length of rostrum 



Length of 6* abdominal somite 



Breadth of 6''i abdominal somite 



Length of telson • 



Length of eyestalk and eye 



Greatest diameter of eye 



Length of antennal scale 



Breadth of antennal scale 



Length of last joint of outer ma.Killiped . . . 

 Length of penultimate joint of outer maxilliped 



SIBOGA-EXPEDITIE XXXI.\a'. • 



7 

 56 

 17 

 13.6 



3,4 

 8 



4.1 



8.5 



2.3 

 2 



9.5 

 2 



3.5 

 4-5 



