47 



and the length of the caudal stylets ; the fifth feet also 

 differ, in this species they are two-jointed whilst in 

 Laophontodes typicus they are composed of a single joint 

 only. 



Normanella attenuata, n. sp. PI. IV., figs. 8 — 20. 



Description of the species. — Female. Length 1 millini. 

 (ojth of an inch). Body elongate cyclindrical, slender. 

 Antennules nine-jointed ; the second much longer than 

 the others, seventh and eighth joints very small, the 

 others are of moderate length as shown hy the formula : — 

 9.15.1Q .7.4.5.1.1.5 

 12 3 456789 



Antennas three-jointed, stout and of moderate length, 

 a small one-jointed secondary branch arises from the 

 lower distal end of the basal joint of the primary branch 

 and is furnished with two setae ; the lower one of which 

 appears to be articulated to the apex of the joint. 

 Mandibles slender with a serrated apex, basal portion of 

 the mandible palp considerably dilated and bearing two 

 one-jointed branches, the outer branch being much longer 

 than the inner. Maxillae and foot-jaws nearly as in 

 Normanella duhia. Inner branches of the first pair of 

 swimming feet long and slender, two-jointed, basal joint 

 longer than the entire outer branch, second joint about 

 one-third the length of the basal joint, bearing one curved 

 spine and two setae on the apex, outer branches three- 

 jointed, shorter than the basal joint of inner branches. In 

 the second and third pairs of feet, the inner branches are 

 short, and two-jointed ; the outer branches are consider- 

 ably longer than the inner and three-jointed. Inner 

 branches of the fourth pair of feet three-jointed and very 

 short, only reaching to about the middle of the second 

 joint of the outer branches. Fifth pair of feet foliaceous, 

 two branched, inner branch large and subtriangular 



