76 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 27 



(1961b) in the nearly vertical cephalic margin below the antennal cor- 

 ner and the long palms of the gnathopods, but differs in the longer pos- 

 terior lobes on the fifth articles of the gnathopods and in the armament 

 of the telson being composed of two stout spines, instead of several 

 slender setae. It is related to B. ivanovi Gurjanova (1952) but differs 

 in the stoutness of the telsonic spines and the longer posterior lobes on 

 the fifth articles of the gnathopods. 



From B. palpalis K. H. Barnard (1916, and see J. L. Barnard 

 1961b) this species differs in the rounded, not emarginate telson, but has 

 the two stout spines typical of B. palpalis. Antenna 1 of the new spe- 

 cies is slightly shorter, the first coxa is less strongly produced forward 

 and the posterior lobe of article 5 on gnathopod 2 is larger than in B. 

 palpalis. 



Bathymedon roquedo J. L. Barnard 



Bathymedon roquedo J. L. Barnard 1962e: 354, fig. 2. 

 Canyon material: 2725 ( 1 ) . 



Monoculodes emarginatus J. L. Barnard 



Monociilodes emarginatus J. L. Barnard 1962e: 361-363, fig. 4. 

 Canyon material: 6845(2). 



Monoculodes glyconicus J. L. Barnard 



Jllonoculodes glyconica J. L. Barnard 1962e: 363, fig. 5. 

 Canyon material : 7288 ( 1 ) . 

 Slope material : 2843 ( 3 ) . 



Monoculodes hartmanae J. L. Barnard 



Monoculodes hartmanae J. L. Barnard 1962e: 363-365, figs. 5-7. 

 Canyon material ; 4852 ( 1 ) , 703 1 ( 2 ) , 7044 ( 1 ) . 



Monoculodes latissimanus Stephensen 



(Fig. 29) 

 Monoculodes latissimanus Stephensen 1931a: 244-245, fig. 70; Gur- 

 janova 1951 : 585, fig. 392. 

 Canyon material .• 2 1 90 ( 1 ) , 68 1 9 ( 4 ) . 



Remarks: These specimens, although as badly broken as the type 

 or more so, mostly lacking ends of pereopods, antennae and uropods, fit 

 Stephensen's description in gnathopods, telson, and head, although the 

 rostrum is slightly longer. In this regard they call attention to the even 

 closer relationship between M. latissimanus and M. abacus J. L. 

 Barnard (1961b) than that noted by Barnard, although the telson re- 

 mains distinctive for M. latissimanus. It may prove necessary to regard 

 these species as races, thereby demonstrating a common distribution of 



