110 



ternal margin of the notch on the lower border of the palm less 

 oblique than on the quoted figure of the var. malensis. 



Smaller chela in the male Balaeniceps-shai^ed, in the female 

 not, similar to those of A. chiragicus H. M. Edw. Second segment 

 of carpus of 2nd legs half as long as Ist. Meropodite of 3rd 

 legs 5,3-tiraes, propodite 6,5-times longer than wide, dactylus 

 almost half as long as the propodite. 



Outer surface of palm of larger chelipede marked with an ochra- 

 ceous spot on the posterior part of the quadrangular depression. 



Length of male 25 m.m., of ova-bearing female 23,5 m.m. 



12. Alpheus leptochiroides, n. sp. 



Station 260. Lat. 5° 36'. 5 S., long. 132° 55'. 2 E. — 2,3 miles 

 N., 63° W. from the North point of Nuhu Jaan, Kei-islands. 

 Depth 90 M. 



Closely related to A. leptochirus Cout. 



Froutal margin straight near the base of rostrum, in A. leptochirus 

 it appears here excavate. Second article of antennular peduncle 

 very slightly shorter than the visible part of Ist, in A. leptochirus 

 a little longer. Stylocerite broader, ending in a spine that reaches 

 to the 2nd fourth part of median article, 



Scaphocerite extending beyond the antennular stalk by the length 

 of 3rd joint, scale just exceeding the extremity of that peduncle. 



Meropodite of larger chelipede of the male four, that of the 

 smaller one five times longer than wide in the middle, infero- 

 internal margin with acute tooth near apex. Larger chela similar 

 to that of A. leptochirus, 8-times as long as high, the whole 

 length 3,5-times longer than the fingers, but the lower border 

 not notched, only slightly sinuous as in A. pareuchirus Cout. 

 Fingers of the smaller chela of the male, which is 5,5-times 

 longer than high, just as long as the palm, dactylus Balaeniceps- 

 shaped, but appearing a little less broad, when looked at from above. 



Second carpal segment of 2nd legs one sixth shorter than first, 

 that is just as long as the two last segments taken together. 



FoUowing legs as in A. leptochirus, but dactylus of 3rd legs 



