313 



Ova of moderate size. Leugtli 9,5 rara., both of the male and 

 of the ova-bearing female. 



2G. Arete maruteeusia Cout., var. salibabueusis, n. 



Station 133. Anchorage off Lirung, Salibabu-islaud. Depth 

 up to 36 M. 



The single specimen that was collected, is a youug female, 

 long 8,5 mm., in which the chelipedes are equal and closely 

 resemble the small chelipede of the female of A. maruteensis 

 (Coutière, in: Buil. Mus. Paris, XI, 1905, p. 21, Fig. 4, the 

 left). Second legs also as in this species, but the carpus is 1,5 

 times as long as the chela, instead of 1,4 times. Third legs a 

 little less stout than in the typical species. Both the raeropodite 

 and the propodite are twice as long as the carpus ; the raeropo- 

 dite is 3,35 times as long as wide, instead of 2,75 times, but 

 for the rest agrees with that of the typical species; carpus twice 

 as long as thick, the propodite not 4-, but 5 times as long as 

 wide, dactylus one third of the propodite. Rostrum not one and 

 a half, but twice as long as broad at its base, at each side a 

 slight, rounded tracé of supra-corneal teeth. Mediau antennular 

 article one and a half as wide as long, distinctly shorter than 

 the visible part of Ist and half as long as 3rd article. Stylocerite, 

 carpocerite and scaphocerite as in the typical species. 



Telson 3,5 times as long as the posterior margin is wide. 



27. Athanas jedauensis, n. sp. 



Station 273. Anchorage off Pulu Jedan, East coast of Aru- 

 islands. (Pearl-banks). 



A new species of the group „dimorphus^\ Rostrum triangular, 

 carinate, acuminate, projecting about to the middle of 3rd anten- 

 nular article. Supra-corneal spine and infra-corueal spine wanting; 

 extra-corneal spine reaching iu the male with half its length 

 beyoud the eyes, iu the female shorter. Antennal region nearly 

 as in A. naifaroensis (vide: Coutière, Alpheidae Mald. and Laccad. 

 Archip. 1905, p. 859, Fig. 131a). Telson slender, 4 times as long 



