COPEPODA OF LIVERPOOL BAY. 333 



6. Laophonte denticornis, T. Scott, 12th Ann. Kept. 



S.F.B., part 3, p. 246. Length -85 mm. 

 A slender species, not unlike L. serrata at first sight, 

 but on closer examination, is seen to be quite distinct. 

 From the same gathering as the last, which contained 31 

 species of Copepoda. 



7. Leptopsylhis intermedins, T. and A. Scott, Ann. and 



Mag. Nat. Hist., Ser.6, vol. XV., 1895. Length -57 mm. 

 This little species belongs to a curious genus, the mem- 

 bers of which, from the structure of their appendages, 

 appear to live entirely amongst the mud and sand, and 

 have not apparently so far been obtained at any depth. 

 In material collected from holes dug in the sand in front 

 of the Laboratory at Port Erin; common. Jan., 1897. 



Leptopsylhis herdmani, n. sp., PL VIII. , figs. 1 — 9. 



Description of the female : — Length, exclusive of caudal 

 setae, '65 mm. (~ of an inch). Body, seen from above, 

 elongate and moderately robust. Antennules short and 

 stout, composed of eight joints, of which the sixth and 

 seventh are the shortest, as shown by the following 

 formula — 

 Proportional length of 



the joints 34 . 22 . 18 . 14 . 10 . 8 . 7 . 15 



Number of joints 12 34 5 678 



Antennae and mouth organs (figs. 1 — 4) nearly similar to 

 those of L. robertsoni, T. and A. Scott. Both branches of 

 the first pair of swimming feet (fig. 5) composed of two 

 joints, the basal joint of the inner branch reaches con- 

 siderably beyond the end of the outer branch ; second 

 joint very short, being only about one-sixth the length of 

 the basal joint, and having at its apex one short and one 

 moderately long seta. The second joint of the outer 

 branch is furnished with four moderately long setae, all 



