108 



to the middie of 3rd antennular joiat, spiae on the basicerite 

 extremely small. 



Large chela 2,5-tiraes as long as the palm is high, fingers 

 hardly half as long as the palm and much less high, their height 

 being in proportion to that of the palm as 2:3; notch on the 

 upper border passing into a quadrangular depression on the outer 

 and in a triangular on the inner surface of the palm, the trian- 

 gular in the male rather indistinct. Lower border with a concave 

 emargination at the base of the immobile finger, this notch 

 appearing triangular on the outer surface, with truncate, pos- 

 terior margin. Fingers of small chela of female slightly longer 

 than the palm, the chela 4-times longer than high. 



The two first segmeuts of carpus of 2nd legs equal or the Ist 

 somewhat longer. 



Meropodite of 3rd and 4th legs unarmed, those of 3rd pair 

 5-times longer than wide, propodite one sixth longer than carpus, 

 dactylus almost half as long as propodite. 



Length of male 16 m.m., of adult female with eggs 19,5 m.m. 



10. Alpheus Polyxo, n. sp. 



Station 240. Banda-anchorage. Depth from 9 — 45 M. 



A new species, probably of the group „Edioardsi." 



Rostrum acute, reaching in the male to the extremity of basal 

 antennular article, in the female a little shorter, rostral carina 

 rounded, in the female broader than in the male, extending to 

 the base of the rounded, unarmed, orbital hoods, from which it 

 is separated by tolerably wide, deep grooves. Telson 3,4-times 

 longer than the width of posterior margin, anteriorly twice as 

 wide as the latter, spinules of upper surface inserted midway be- 

 tween the median line and the lateral margins. 



Second antennular article 2, 5-times longer than thick, one and 

 a half as long as the visible part of the Ist, 3rd joint hardly 

 shorter than that visible part. Stylocerite with the terminal spine 

 just reaching beyond Ist antennular article. 



Basicerite with a small inferior spine, Carpocerite just extending 



