600 



Inner antennae a little shorter thau the carapace, thicker fla- 

 gellum just as long as the peduncle and composed of 12 joints, 

 which, in the middle of the flagellum, are longer than broad. 

 Outer antennae once and a half as long as the carapace. 



Legs of Ist pair resembling those of Upog. Darwinii, but the 

 fingers that measure one fourth the length of the whole chela, 

 are strongly curved, more than in that species and much more 

 than in Upog. (Gebiopsis) hexaceras Ortm. The prehensile edges of 

 both fingers are entire, palm also unarmed. Carpus with a small 

 spinule at the distal end of the inner margin of the upper sur- 

 face and with a very small, sharp tooth at that of the lower. 



Length of egg-bearing female 18,5 m.m. 



15. Upogebia (Upogebia) pugnax n. sp. 



Stat. 311. Sapeh-bay, East coast of Sumbawa. üepth up 

 to 36 M. 



Rostrum or front triangular, obtuse, somewhat longer than broad, 

 measuring one fifth of the length of the carapace, itself included ; 

 lateral borders of the rostrum each with 5 small teeth. Lateral 

 margins of the gastric region with 8 or 9 teeth, the foremost 

 one little longer than the rest; gastric region covered with small 

 teeth. Rostrum and anterior part of the gastric region hairy. 

 Anterior margin of carapace on either side with one single spine. 

 Abdomen almost twice as long as the carapace. Second and sixth 

 somites nearly of the same length and a little longer than the 

 3rd — 5th that are subequal; sixth somite a little broader than 

 long, one third longer than the telson. Telson once and a half 

 as broad as long, its length three fourths that of the 6th somite 

 and with slightly concave, posterior edge. Lateral swimmerets 

 longer than telson; straight anterior border of exopodite making 

 a right angle with the truncate distal one; endopodite little shorter, 

 pointed, with obtuse tip. 



Inner antennae almost half as long as the carapace, Ist joint 

 of their peduncle as also the autepenultimate joint of antennal 



