306 



Chelipedes nearly as in A. aequalis^ the left much larger than 

 the right. Meropodite of larger leg 2,8 times as long as broad, 

 quite unarmed, but the outer surface with a ridge running obli- 

 quely over it. Carpus short, cyathiform. Chela 2,7 ram. long, 

 2,3 times as long as the meropodite, resembling that of aequalis^ 

 but the palm one fourth longer than the fingers. Smaller chela 

 half as long as the larger. 



Meropodite of 2nd legs 6,25 times as long as wide. The five 

 carpal articles are 0,45 mm., 0,18 mm., 0,2 mm., 0,2 mm., and 

 0,3 mm. long; 2nd article one and a half as long as thick. 

 Chela twice as long as 5th article, fingers slightly shorter than 

 the palm. Following legs as in A, trispinosus. Ischiopodite of 

 3rd legs 5 times as long as wide in the middle, bispinose. Both 

 the meropodite and the propodite are twice as long as the carpus, 

 the meropodite 6 times, the propodite 10 times as long as broad; 

 dactylus simple, two fifths of the propodite, slender, 7 times as 

 long as broad at its base. 



Length of the only specimen collected 10 mm. 



20. Alpheopsis Chalciope, n. sp. 



Station 154. Lat. 0° 7'. 2 N., long. 130° 25'. 5 E. Depth 83 M., 

 decreased till 59 M. during the haul. 



Rostrum slender, acuminate, almost as long as basal antennular 

 article; extra-corueal teeth also acute, slightly curved inward, 

 much shorter than the rostrum, hardly measuring one third. 

 Corneae very black, entirely covered by the carapace. Pterygo- 

 stomian angle terminating in a short, acute spine. Telson 4,7 times 

 as long as the width of posterior margin, the latter as in Alph. 

 trispinosus (Stimps). 



The three antennular articles subequal, the 2nd one and a 

 half as long as thick. Outer flagellum composed of two articles 

 before bifurcation, the Ist twice as long as the 2nd (in A. tri- 

 spinosus the 2nd is much longer than the Ist). Stylocerite acuminate, 

 reaching almost to apex of median article. 



Carpocerite 4 times as long as thick, as long as antennular 



k- 



