162 ZO OLOGISCHE MEDEDEELTNGEN — DEEL IV. 



rostrum appearing e. g. in the specimens from Stat. 316 rather narrow, 

 4,5 — 6-times as long as broad, in other ones a little broader, less than 

 4-times as long as broad. 



Propodus of anterior legs 4-times as long as wide in the middle. Pe- 

 raeopods of 2 nd pair reaching to the middle of the merus of 1 st pair: 

 chela 2,5 — 2,7-times as long as the carpus, which is distinctly shorter 

 than the palm ; fingers as long as palm, gaping, chela 6-times as long 

 as broad at the articulation of the fingers. 



Eyes as large as those of Pont, gracilis, the length of the carapace, 

 including the rostrum, being 5,1 — 5,8-times as long as the greatest dia- 

 meter of the eye. For the rest this form seems to agree with Pont, 

 gracilis Smith, of which it should perhaps with more right be considered 

 as a variety. 



Length of the male 35,5 mm., of the adult, egg-laden female 48 mm. 



Pontophilus modestus n. sp. 



Stat. 253. 5°48'.2S., 132° 13' E. West of Kei-islands. 304 m. Bottom 

 grey clay, hard and crumbly. 2 specimens. 



The specimens are of unequal size and do not fully agree with one 

 another, so that the larger is described as the type. 



This specimen is 21,35 mm. long, carapace 5,2 mm., abdomen 16,15 

 mm. Carapace and abdomen smooth, the carapace 1, 6-times as long as 

 broad, rostrum included. Rostrum ] /s the length of the rest of the cara- 

 pace, reaching to the middle of the eyes; it is narrow, 3,75-times as 

 long as wide in the middle, anterior margin straight, truncate, measuring 

 one-third the length ; the rostrum is hollowed dorsally. Orbital spine 

 small, antennal spine reaching beyond the eyes, slightly divergent, but- 

 tressed by a long, sharp carina. One spine in the mid-dorsal line of the 

 carapace at one-sixth its length from the base of the rostrum; posterior 

 to it the carapace is rounded. At either side of the middle the carapace 

 is armed with three acute spines. First or uppermost a little smaller 

 than the dorsal spine, situated just behind the level of it, posterior to 

 the orbital spine and buttressed by a short obtuse carina. Second spine as 

 large as the spine in the middle line, situated in a level with the an- 

 tennal spine, half as far distant from the I s * as the 1 st from the dorsal 

 spine, which is placed a little behind the level of the 2 nd . Third spine 

 as large as the second or hepatic spine, situated midway between the 

 latter and the antennal spine. 



Abdomen 3-times as long as the carapace, rostrum included, perfectly 

 smooth. Sixth somite one and a half as long as 5 th , 4, 3-times as long 



