305 



Large chelipede uuknown. Mcropodite of the sraall, other 

 chelipede sliglitly ciu'ved, 4 times as long as wide; carpus three 

 fourtlis, chela four fifths of the meropodite ; chela 2,4 times as 

 long as broad or high, fingers shorter thau the palm, the propor- 

 tion being as 1 : 1,35. 



The measuremeuts of the meropodite, the five segmeiits of the 

 carpus and the chela of 2nd legs are respectively : 1,85 mm.; 

 1,12 mm., 0,34 mm., 0,21 mm., 0,25 mm., 0.46 mm.; chela 

 0,77 mm. 



Relative dimensions of 3rd pair: Meropodite 1,57; carpus 1; 

 propodite 0,91. Meropodite 4,45 times as long as wide, carpus 

 and propodite each 5,7 times, the propodite with 4 small spinules; 

 dactylus simple, short, ^4 of the propodite, of a rather stout 

 form, 3 times as long as thick at base. 



Dactylus of 5th pair similar to that of 3rd, but measuring '/^ 

 of the propodite. 



Length 13,5 mm. 



19. Alpheopsis cousobriuus, n. sp. 



Station 282. Lat. 8° 25'. 2 S., long. 127° 18'. 4 E. Anchorage 

 between Nusa Besi and the N. E.-point of Timor. 

 Depth 27—54 M. 



A new species closely related to A. aequalis Gout. Rostrum 

 triaugular, acuminate, as long as wide at its base, obtusely carinate 

 above and just reachiug beyond Ist antennular article. At each 

 side of the rostrum the frontal margin soon curves downward, 

 the front being rather narrow, without any tracé of extra-corneal 

 teeth. Pterygostomian angle armed with a small, acute tooth. 

 Sixth abdominal pleura articulate, movable. Telsou 5 times as 

 long as the posterior margin is wide, the latter almost straight. 

 Antennal region as in yl. aequalis var. truncatus (Coutière, Alpheidae 

 Mald. and Laccad. Archip. 1905, p. 869, Fig. 139b). Second 

 article a little broader than long. Outer flagellum with two articles 

 before bifurcation, the Ist slightly longer than the 2nd. Stylocerite 

 acuminate, almost reaching to the middle of 3rd article. 



