394 



Stat. 99. June 28/29/30. 6°j'.$ N., 120° 26' E. Anchorage off North-Ubian. 16 — 23 m. Litho- 

 thamnion. 4 females, the largest of which is egg-bearing, all taken on the surface. 



Stat. 240. November 22 till December 1. Banda-anchorage. Black sand, coral, Lithothamnion- 

 bank in 18 — 36 m. 1 young female. 



The largest of the specimens is the adult female from Stat. 37, which is 21 mm. long. 

 The stylocerite reaches to the end, the rostrum almost to the end of first antennular article. 

 The fingers of the large chela appear a little shorter than in Coutière's figure 42 f, the palm 

 being almost twice as long as the fingers. There is a small acute tooth at the far end of the 

 infero-internal margin of the merus of the small cheliped, this tooth is much smaller than the 

 corresponding tooth on the merus of the larger leg ; in both chelipeds the infero-internal margin 

 Tears 3 small spinules on its proximal half. The carpal segments of the right leg of the second 

 pair are 1,4 mm., 1,28 mm., 0,58111111., 0,6 mm. and 0,72111111. long; the chela is 1,25 mm. long 

 (palm 0,54111111., fingers 0,71 mm.); the left leg is missing. In the right leg the first segment 

 appears slightly longer than the second and the third and fourth are almost of the same length. 



Merus of third legs almost 5-times as long (2,9 mm.) as broad (0,66 mm.) with a 

 rather small, acute tooth at the far end of the posterior margin; propodus but little longer 

 than the carpus (proportion 1,18), about as in Coutière's figure 42^, while according to the 

 description the propodus should be almost one and a half as long as the carpus (proportion 1,43). 



The egg-bearing female from Stat. 99 is only 15,5 mm. long. In this specimen the y d 

 antennular article appears a little shorter than the visible part of the i st . Meri of chelipeds 

 with 4 spinules besides the apical tooth on their infero-internal margin. In the right leg of 

 the second pair the carpal segments are 1,12 mm., 1,12 mm., 0,5 mm., 0,56111111. and 0,74111111. 

 long; the chela is 1,05 mm. long (palm 0,46111111., fingers 0,59 mm.). In this specimen the first 

 segment appears just as long as the second, but in another from the same locality the second 

 segment appears slightly longer than the first, the segments being 1 mm., 1,05111111., 0,5 mm., 

 0,52 mm. and 0,6 mm. long. 



In the third specimen long 9 mm. from Stat. 99 the carpal segments of the right leg 

 measure 0,68 mm., 0,7 mm., 0,34 mm., 0,34111111. and 0,42111111.; the chela is 0,66 mm. long 

 (palm 0,31 mm., fingers 0,35 mm.). In this specimen the propodus of the third legs, that carries 

 6 spines 011 the posterior margin, appears comparatively longer than in the preceding specimen, 

 for it is almost 1,4-times as long as the carpus. In the specimen from Stat. 66, finally, the 

 second segment of the carpus appears distinctly longer than the first, while the three following 

 are equal. 



General distribution: Maldive and Laccadive Archipelagoes (Coutière); Ceylon 

 (Coutière); Gulf of Manar, Cheval Paar, off Mutwal Island (Pearson); Mascate (Coutière); 

 Port-Molle (Coutière); New Caledonia (Coutière); Japan (Coutière). 



f 43. Alpheus rapacida de Man. 



J. G. de Man, in: Notes from the Leyden Museum, Vol. XXX, 1908, p. 105. 



Stat. 133. July 25/27. Anchorage off Lirung, Salibabu-island. 36 m. Mud and hard sand. 

 1 young female. 



262 



