102 



Folio win g legs as in A. Arethusa, but tbere are no spinules 

 on the posterior border of the carpus of 3rd and 4th legs and the 

 dactyli are siraple, without accessory claw. 



The only colleeted specimen, probably a young female, is 

 8 m.m. long. 



4. Alpheus parvus, n. sp. 



Station 133. Anchorage off Lirung, Salibabu islaud. Depth 36 M. 



A new species of very small size, apparently belonging to the 

 group „crinitus^ s. s., Cout., closely related to A. crinitus Dana 

 and A. clypeatus Cout. 



Rostrum acute, projecting borizontally foreward to the distal 

 fourth of the visible part of Ist antennular article ; anteriorly, as 

 far as the middle of the eyes, the rostral carina is strongly com- 

 pressed, sharp, posteriorly it is obtuse and continued to the pos- 

 terior third of the carapace. Frontal margin transverse, orbital 

 hoods rounded, unarmed. Telson as in A. clypeatus, but more 

 strongly narrowiug backward, the length of the telson equalliug 

 4,54-times its posterior margin. 



Antenual and antennular stalks as in A. clypeatus, but 2nd 

 antennular article only one fourth longer than the visible part 

 of the Ist, which is but little longer than the 3rd, and the scale 

 of the scaphocerite narrow and reaching to the extremity of an- 

 tennular peduncle. 



Meropodite of smaller chelipede of female 3-times longer than 

 wide, infero-iuternal margin with a strong, slender, apical tooth, 

 upper margin unarmed. Chela half as loug as the carapace, al- 

 most 4-times as long as high, fiugers hardly shorter than the palm. 



Second segment of carpus of 2nd legs 1,28-times longer than 

 the Ist, the Ist one and a half as long as the 5th, 3rd and 4th 

 segmeuts of equal length. 



Meropodite of 3rd legs 4,5-times longer than wide iu the middle, 

 armed, like that of 4th legs, with a strong, acute, apical tooth; 

 propodite of 3rd legs one fourth longer than the carpus, the pos- 

 terior border of which termiuates in an acute tooth, but that is 



