414 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



small and three-jointed, and do not reach to the middle of 

 the first joint of the elongated inner branches (fig. 12). 

 The outer branches of the second, third, and fourth pairs 

 of feet are three- jointed. The inner branches are short 

 and two-jointed, with the first joint very small. The 

 structure of the fifth pair is similar to those of L. clenti- 

 cornis, T. Scott, except that the basal joint is not rounded 

 on its inner margin. The basal joint is furnished with 

 three plumose setae on the inner margin, and two sub- 

 apical seta?. The outer branch is furnished with three 

 small sub-apical seta? on the outer margin, one small sub- 

 apical seta on the inner margin, and one long apical seta. 

 Caudal furca slender, about two-thirds the length of the 

 last abdominal segment. 



Remarks. — This species resembles Laophonte thoracica 

 in some of its characters, but the structure of the anten- 

 nules, the fifth pair of feet, and the caudal furca easily 

 distinguish it. 



Laophonte herdmani, n. sp. Plate II., figs. 3-8 ; 



Plate L, fig. 15. 



Occurrence, Nos. 1, 3, 5. 



Description of the Female — Length '66 mm. Body 



slender, with straight jointed thorax; rostrum small and 



cleft, with a minute seta at each side. Antennules 



moderately robust, six-jointed. The fourth and fifth joints 



are very small. The second joint has a minute tooth on 



its lower surface. The proportional lengths of the joints 



are shown by the following formula : — 



Proportional lengths of the joints - 11 10 10 2 2 8 



Number of the joints - - - - 1 2 3 4 5 6 



The antenna?, mandibles, maxilla? and foot jaws are similar 

 to those of L. inornata. The inner branches of the first 

 pair of swimming feet are robust, and armed with a strong 

 terminal claw. The outer branches are small and three- 



