596 



ing a little distally, is barely longer than the slender fingers that 

 shut together; both the outer and the inner surface of the palm 

 are a little convex and perfectly smooth. 

 Length 30 m.m. 



10. Axiopsis tenuicornis n. sp. 



Stat. 5. Lat. 7° 46' S., long. 114° 30'.5. Depth 330 M. 



Rostrum triangular, slightly concave, acute, measuring one fourth 

 of the rest of the carapace and almost extending to the end of 

 the 2nd joint of the antennular peduncle; lateral margins each 

 with 2 acute spines. Prolongations of the latter on to the gastric 

 regiou with 4 similar spines; gastric region with median carina 

 armed with 4 equidistaut spines; between the median carina and 

 the lateral ones on each side another submedian ridge, carryiug 

 also 4 similar spines. Abdomen almost twice as long as the cara- 

 pace. Sixth somite a little longer than the 2nd, very little broader 

 than long. Telson a little longer than sixth somite, anteriorly 

 one fourth longer than broad, its posterior border convex with 

 short, acute, median spine, attached to the lower surface. Foliaceous 

 lateral swimmerets as long as telson, exopodite obovate, a little 

 more than half as broad as long. 



Internal antennae a little shorter than the carapace, inner fla- 

 gellum almost 3-times as long as the peduncle, outer flagellum 

 nearly 2*/2-times as long as the latter. Penultimate joint of antennal 

 peduncle very long and slender, 9-times as long as thick; the 

 scaphocerite is a slender, acuminate spine just as long as the penul- 

 timate joint. 



First pair of legs very unequal, the right the larger. Lower 

 border of ischium and merus with spines, larger chela as long as 

 the merus, palm little longer than the fingers and once and a 

 half as long as broad ; its upper border with two small, acute 

 teeth at the distal end. Upper border of dactylus with 3 slender 

 spines at its base. Left leg much slenderer, but little shorter. Lower 

 edge of ischium and merus each with 6 spines, fingers slender, 

 once and a half as long as the palm. 



