Cumacea: 24. Nannastacidae, 3. Nannastacus 



175 



all longer than peraeopod 2, and successively longer; 2"'^ joint in peraeo- 

 pod 3 nearly as long as the other joints combined, but in 4 and 5 much 

 shorter, in those pairs the 5*»^ joint longer than the ^^K Peduncle of uro- 

 pods less than half as long as endopod, which is about thrice as long as 

 the exopod, but with much shorter apical spine. L. about 2 mm. 



Fig. 117. 



N. ungaiculatus ( 2 ) Bate, front (after 



Sars). 



Fig. 119. 

 N. unguiculatus ( ? ) Bate, maxilli- 

 ped 2, vibratory lamina (after Sars). 



Fig. 118. 



N. unguiculatus ( 9 ) Bate, maxilliped i 



(after Sars). 



Fig. 120. 



N. unguiculatus Bate, niaxilUped 3 



(after Sars). 



(S. Body slightly more slender, without scattered hairs. Pseudorostral 

 lobes shorter, thicker, less strongly upturned, antero-lateral corners quadrate. 

 Carapace almost vertically truncate behind, devoid of the flattened spines 

 flanking the branchial regions. Eyes larger. Antenna 2, flagellum filiform, 

 of about 18 elongate joints. Maxilliped 1, branchial leaflets (wanting in Q) 

 about 16 in number. Exopods of maxilliped 3 and peraeopods more strongly 



