610 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 41. 



Albatross station 2711; lat. 38° 59' 00" N.; long. 70° 07' 00" W.; 

 1,544 fathoms; U.S.N.M. 44014; 2 females. 



Albatross station 2714; lat. 38° 22' 00" N.; long. 70° 17' 30" W.; 

 1,825 fathoms; U.S.N.M. 11998, 44011, and 44012; 5, male and female. 



CYCLASPIS VARIANS, new species. 



Ovigerous female . — Total length, 3.4 mm. 



Carapace slightly more than two-sevenths of total length, com- 

 pressed, its vertical height a little more than half its length. The 

 dorsal edge is distinctly keeled and the anterior part just behind 

 the ocular lobe is, in many specimens, cut into a number of fine 



Fig. 1.— Ctclaspis vaeians, female, from the side. 



teeth; in some specimens, however, the dorsal edge is quite smooth. 

 The pseudorostrum is of moderate length, acute, the lateral plates 

 meeting in front of the ocular lobe for a distance equal to half the 

 length of the lobe. The antennal notch is rather widely open and the 



antennal tooth acute. The ocular 

 lobe is slightly prominent on the 

 dorsal surface and the eye is pig- 

 mented. The surface of the carapace 

 is quite smooth. 



The first leg-bearing somite is ex- 

 posed both dorsally and at the sides. 

 The dorsal keel is not very marked on 

 any of the thoracic somites. The 

 abdomen is about equal in length to 

 the cephalothoracic region. The first 

 five somites have lateral articular 

 processes. 



Antennules of moderate length, the 

 last segment of the peduncle longer 

 than the preceding. First legs short, 

 extending beyond the tip of the pseudorostrum by about one-fourth 

 of the length of the carapace. The basis is not shorter than the 

 distal segments together, without a tooth or plumose sctre at the 

 distal end. The dactylus is a little shorter than either the propodus 

 or the carpus. 



Fig. 2-3.— Cyclaspis varians, female. 2, 

 First leg; 3, last somite and uropod. 



