204 Kev. T. R. U. Stebbing on 



antennae, and is almost entirely occupied by the elongate eyes, 

 which are only separated by a linear ridge. All the segments 

 of the pereion and pleon are carinate. In the pereion the 

 hinder margin of each segment is adorned all round with 

 teeth alternating in size, the central one of the carina being 

 the largest. This fringe has an appearance like the projecting 

 edges of the septa in many corals. The number of the teeth 

 varies from nine to seventeen. The seventh segment lias a 

 second row in advance of the hinder margin ; the other seg- 

 ments have also some lateral tubercles in this position. The 

 first pleon-segment has the fringe of teeth on the hinder 

 margin, but very small; in front of this row it has a large 

 median tooth, flanked by two small teeth or tubercles on each 

 side, set divergently. The next segment has a long central 

 ridge, with the flanking tubercles, but no teeth on the hinder 

 margin. The third segment, dorsally much longer, has the cen- 

 tral ridge, but no other ornament ; so also the fourth ; the fifth 

 and sixth are very small. The epimera and lower borders of 

 the first three pleon-segments are fringed with hairs. In the 

 upper antennae the fourth joint of the peduncle is longer than 

 the fifth. The last three epimera are not acuminate, in dis- 

 agreement with the description of the genus given by A. 

 Boeck. 



(Ediceropsis rostrata, n. sp. 



This species agrees closely with (Ediceropsis. brevicornis, 

 Lilljeborg, in the antenna?, the epimera, shape of gnathopods, 

 relative lengths of pereiopoda, general shape of telson, and to 

 a large extent also in the mouth-organs. Contrary, however, 

 to the generic character of (Ediceropsis, it has a large rostrum, 

 apparently carrying the eyes. It would, notwithstanding 

 this, in my opinion be better to re-unite (Ediceropsis with 

 (Ediceros on account of this connecting* link than to separate 

 the present species generically from (Ediceropsis brevicomis. 



In the mandibles the second joint of the palpi is shorter 

 than the third. In the maxilke of the second pair the outer 

 plate is very little narrower than the inner. 



The almost quadrangular telson has a very minute distal 

 emargination. 



Subfamily Epimerinje. 



Epimeria conspicua y n. sp. 



A median carina runs along the back from the first pereion- 

 segment to the fourth segment of the pleon. On the first 

 two pereion-segments it is obtuse and little pronounced, but 





