ALPHEUS SAVUENSIS. 



Ill 



Meropodite of 3 rd legs stouter than that of A.pubescens, 

 4-tiines as long as broad; propodite also 4-tiraes as long 

 as broad, 1,2-times as long as the carpus; dactylus as in 

 A. pubescens. 



Length of the single male that was collected: 18,5mm. 



13. Alpheus proseuchirus 1 n. sp. 



Station 114. Lat. 0° 58'. 5 N., long. 122° 55' E. 



Kwandang-bay-entrance. Depth 75 M. 

 Station 116. Lat. 0° 58'. 5 N., long. 122° 42'. 5 E. 

 West of Kwandang-bay-entrance. Depth 72 M. 



A new species of the group „Ediuardsii" de M., closely 

 related to A. pareuchirus Cout. 



Eostrum as in A. bis-incisus de Haan, narrow-triangular, 

 flattened above, about 3-times as long as broad at base, 

 acute, reaching almost to the end of 1 st joint of antennular 

 peduncle, and beginning at the base of the eye-hoods. Orbital 

 hoods rounded, unarmed. Second joint of antennular peduncle 

 as long as the visible part of 1 st joint, not longer; 3 rd joint 

 two thirds of the 2 nd . Spine on the basicerite very small. 

 Carpocerite as long as scaphocerite, slightly longer than 

 antennular peduncle ; scaphocerite almost 3-times as long 

 as broad, terminal spine reaching only with one sixth of 

 its length beyond the tip of the blade that extends to the 

 extremity of the antennular peduncle, the spine of a less 

 slender shape than in A. pareuchirus. 



Larger chelipede as in A. pareuchirus^ but the fingers 

 shorter, measuring little more than one fourth the length 

 of the chela ; smaller chelipede of the female also as in 

 that species, fingers in proportion to the palm as 7:5, 

 their pointed extremities crossing one another. 



First joint of carpus of 2° d legs one and a half as long 

 as the 2 nd joint, that is one and a half as long as the 5 th . 



Posterior legs still more slender than those of A. pareuchirus. 

 Meropodite of 3 rd legs 9-times as long as broad, unarmed 



r^otes from the Leyden Museum, Vol. XXX. 



