576 



Occurrence. I have frequently met with this form in several places 

 both on the south and west coasts of Norway, as also in the Trondhjemsfjord, 

 in depths varying from 30 to 150 fathoms. 



Distribution. British Isles (Sp. Bate), Kattegat (Meinert), coast of 

 France (Chevreux). 



19. Podoceropsis excavata, (Sp. Bate). 



(PI. 205), 

 Ncenia excavata, Sp. Bate, Catal. Amph. Brit. Mus , p. 272, PL XL VI, fig. 4. 



Syn : Nsenia rimapalmata, Sp. Bate g. 

 Xenoclea Batei, Boeck. 

 Podoceropsis Batei, Meinert. 



Body comparatively stouter than in the type species and less com- 

 pressed, with broadly rounded back. Cephalon about the length of the first 

 2 segments of mesosome combined, lateral corners acutangular, with the 

 lower edge nearly straight. Anterior pairs of coxal plates considerably deeper 

 than the corresponding segments, and (in female) successively increasing in size 

 to the 4th; 5th pair with the anterior lobe very large, and fully as deep as 

 the preceding pair, tip broadly rounded. Last pair of epimeral plates of 

 metasome but very slightly produced at the lateral corners. Eyes of moderate 

 size, rounded oval in form, with dark pigment. Antennae comparatively more 

 strongly built than in the preceding species, and carrying dense fascicles of 

 bristles posteriorly, the superior ones exceeding half the length of the body, 

 2nd joint of the peduncle the longest, 3rd joint longer than the 1st, flagellum 

 nearly attaining the length of the peduncle, and composed of 1216 articula- 

 tions. Inferior antennae fully as long as the superior, flagellum about the 

 length of the last 2 peduncular joints combined. Anterior lip produced in 

 front to an acuminate projection. Mandibular palps less slender than in 

 P. Sophia. Anterior gnathopoda rather feeble, with the propodos scarcely 

 as long as the carpus and but little broader, being oblong subfusiform in 

 outline, with the lower edge but very slightly curved, dactylus very much elong- 

 Posterior gnathopoda in female, as usual, much stronger than the anterior, 

 propodos rather large and broadly oval in form, with the palm shorter than 

 the hind margin, and deeply excavated in the middle, the excavation being 

 fined on either side by an angular projection, dactylus impinging, when 

 losed, against the lower projection, which is accompanied by a strong spine; 

 those in male very powerfully developed, with the propodos large and oval 



