^28 



THETIS SCIENTIFIC RESULTS. 



Superior palmar border evenly convex, and about one-third 

 longer than the lower ; dactylus slender, distaily curved, its 

 tip reaches to the base of the conical lobe when closed ; the 

 inferior border bears a line of short but scarcely tapering setse. 



The second and third pairs of legs differ from the first in being 

 comparatively slender, and in having the meral joint subtriangular 

 in outline and longer than broad ; the inferior border and the 

 superior distal extremity bear a few long setse ; the distal margin 

 is excavated and adapted to the base of the hand and the carpus. 

 The shape of the palm is much like that of the first pair, but the 

 basal lobe is wanting, the setse are longer, and the inferior 

 ■edge bears about ten stoutish spines, the distal two or three have 

 on each side one or two accessory spinules, 

 the remainder have one only, which is 

 situated on the posterior border, arising 

 about the middle and continued beyond the 

 apex of its support. The dactylus is scantily 

 hairy throughout its length, and has a tuft 

 at its tip. 



Fourth, fifth and sixth pairs of legs sub- 

 equal, the seventh pair somewhat shorter. 

 Each carpal joint is armed below with four 

 Spines ON Border OF Palm or five equidistant spines, and some long 

 setse ; the spines increase in length as the 

 distal exti^emity is approached, where they 

 are nearly as long as the transverse diameter of the joint. The 

 propodal joints of the fourth and fifth pairs of legs bear eight or 

 nine spines, and those of the sixth and seventh pairs from 

 eighteen to twenty. All the spines of the carpo-propodal joints 

 have a long accessory spinule. Dactyli slender, curved, about 

 -one-fifth shorter than the preceding joint. 



OF Second Les. 

 Fig. 19e. 



Total length of body ... 

 Length of cephalon ... 



„ ,, peraeon 



,, „ pleon without telson 



„ ,, telson 



„ „ uropod 



,, ,, ramus 



,, ,, ramus 



,, ., first antennte 



,, ,, peduncle first antennse 



,, ,, second antenme 



,, „ peduncle second antennae. 



. 42 mm 



2-5 





. 31 





. 3-5 





. 4-5 





. 6 





. 4 





. 5-5 





. 6 





2 





. 6-5 





. 3-8 





