33 



SfenheUa herdmaiii, n. sp. PI. I., figs. 1 — 11. 



Description of the species. — Female. Length 1"43 millim. 

 (y\-tb of an inch. Body moderately stout ; rostrum 

 prominent and curved. Antennules long and slender, 

 eight-jointed ; the first, second, fourth and eighth joints 

 longer than the others, the fifth joint being the smallest 

 of the series ; the second, third and fourth joints have 

 each a tuft of setae on their upper distal margins. The 

 proportional lengths of the various joints are as follows : — 

 14 ■ 14 ■ 8 . 10 . 5 . 6 ■ 7 . 11 

 1 2 34 5678 



Antennae moderately stout, secondary branch small and 

 slender, two jointed ; basal joint elongate narrow with 

 one seta on its upper distal end, second joint short, about 

 one third of the length of the first and furnished with two 

 terminal setse. Mandibles large and well developed, the 

 broad biting part armed with a few large teeth and a 

 number of smaller ones ; mandible palp comparatively 

 large, consisting of a one-jointed basal part which carries 

 at its lower extremity two branches, one large and one 

 small, the smaller of the two being two-jointed, w^iilst 

 the larger one is composed of a single joint. Masticatory 

 portion of the maxillas furnished with a number of strong 

 teeth, palp two branched, the outer one bearing three 

 setiferous lobes. Anterior foot-jaws furnished with one 

 large terminal claw and three digitiform setose tubercles. 

 Posterior foot-jaws stout, of moderate length and furnished 

 with a strong, slightly curved terminal claw at the base 

 of which are two setae ; the basal joint of the foot-jaw has 

 four small ciliated tubercles on its lower side, while the 

 second joint has a row of fine cilia on its upper margin 

 and a row of stronger cilia on its lateral surface a little 

 way down from the upper margin, there are also two 

 plumose setse on the upper margin of the joint. First 



