311 



short, uot vagiuiform ; carpus short, cyathiforoi. Chela compressed, 

 turned outvvard, with both inargins of the palm eutire, but with 

 a small groove ou the upper (inner) surfacc just behiud the arti- 

 culation of the dactylus. Fiugers compressed, cuttiug-edges sharp, 

 that of the dactylus finely denticulate. 



Legs of 2nd pair with the carpus as in Sijnalpheus^ 5-articulate. 



Followiug legs stout, meropodite uuarmed, dactylus biunguiculate. 



24. Aretopsis amabilis, u. gen. n. sp. 



Station 89. Pulu Kaniungan ketjil. Reef. 



Besides the characters indicated for the genus, the only collected 

 specimen, long 11 mm., presents still the following. Length of 

 telson 3,5 times the width of posterior margin, that is truncate 

 in the middle with two spinules near the hardly marked, outer 

 angles; anterior pair of spinules of upper surface just before the 

 middle, Second joint of antennular peduncle one and a half as 

 wide as long, a little shorter than the visible part of the Ist., 

 3rd as long as the two precediug taken together. Stylocerite 

 reaching to the middle of median article. Carpocerite and scapho- 

 cerite a little longer than antennular peduncle. 



Outer surface of meropodite of (smaller) chelipede twice as long 

 as wide in the middle, upper and infero-internal margins unarmed, 

 infero-external with three slender, S-like, movable spinules on 

 the middle. Chela one and a half as long as the meropodite, 

 fingers just as long as the palm, which is one and a half as 

 long as wide, with the inner (lower) margin carinate. 



Meropodite of 2ud legs 5 times as long as wide and as long 

 as the carpus. Carpal joints long 0,58 mm.; 0,14 mm., 0,14 mm., 

 0,14 mm., and 0,34 mm.; chela 0,78 mm. long, fingers as long 

 as the palm. 



Ischiopodite of the three following legs with a small spinule 

 near the base. Measurements of 3rd pair: Meropodite 2, carpus 1, 

 propodite 1,33. Meropodite 3,7 times, propodite 4,6G times as 

 long as wide, the latter with 8 or 9 spinules. Dactylus ^s ^^ ^^^ 

 propodite, 4 times as long as wide; ventral accessory hook stout. 



