DACTYLOITSIA. 171 



DACTYLOPrsiA VALIDA, Norman & T. Scott. (Pis. X. fig. Ill; 

 XII. fig. 9 ; XIII. fig. 12 ; XVII. fig. 8 ; XX. fig. 6.) 



1905. Dactylopusia valida, Norman & Scott, Ann. & Mag. Nat. 

 Hist. ser. 7, vol. xv. p. 293. 



Description of tlie female. Body moderately robust and 

 resembling Dactylopusia tisboides in its general appearance 

 and size. 



The antennules are short and stout and composed o eight 

 joints ; the first two are the largest, the fifth and seventh 

 are smaller than the others, but the remaining four are 

 nearly of equal length (PI. XII. fig. 0). The proportional 

 lengths of the various joints are shown approximately by the 

 formula : 



Proportional lengths of the joints 13 . 11 . 7 . 8 . 5 . 8 . 5 . 8 



Numbers of the joints T 2 345678 



The three-jointed secondary branches of the antennae are 

 comparatively large and stout and furnished with several 

 setss (PL X. fig. 16). 



The mandibles and maxillae resemble those of D. tisboides, 

 so also do the first maxillipeds. 



The second maxillipeds, which are moderately stout, are 

 provided with elongated and slender terminal claws (PL XIII. 

 fig. 12). 



The outer branches ot the first pair of thoracic feet, which 

 are short and proportionally very stout, are armed with 

 strong sj lines as shown in the drawing (PL XX. fig. 6) ; the 

 first two joints are moderately large, but the third though 

 distinct is very small. The inner branches are also robust; 

 the fii>t joint is elongated and equal to about one and a half 

 times the entire length of the outer branches, the second and 

 third are very small, and the principal terminal claw-like 

 spine is moderately long and slender. 



The second, third, and fourth pairs resemble the same 

 three pairs in D. tisboides. 



In the fifth pair the primary joint is moderately elongated 

 and reaches to about the extremity of the secondary joint and 

 bears five seise of moderate length which spring from the 

 rounded apex, there is also a minute spine between the 

 two outer setas and the next two. The secondary joint 

 has a broadly ovate outline, the length being rather less 

 than twice the width at the broadest part, the inner margin 

 is nearly straight but the outer is moderately convex ; a 

 small seta springs from the middle, and a long one from 

 near the distal end of the inner margin, while five are 



