NO. 5 BARNARD: AMPHIPODA 79 



Oediceropsis (Paroediceroides) morosa, new species 



(Fig. 32) 



Diagnosis: Rostrum slender, acute, reaching two thirds along ar- 

 ticle 1 of antenna 1 ; lateral cephalic lobes not projecting as far for- 

 ward as rostrum, subacute; eyes absent; posterior lobes of fifth articles 

 of gnathopods projecting but only moderately slender; pereopods 1 

 and 2 with very slender articles ; telson truncated ; coxa 1 with trun- 

 cated anteroventral corner; coxa 4 with posterior process blunt. Uro- 

 pod 3 missing. Mouthparts like Oediceroides rostrata (Stebbing 1888: 

 pis. 60, 61, as O. conspicua)h\xt inner lobe of maxilla 1 with only 2 

 setae. 



Holotype: AHF No. 6016, female, 5.5 mm. Unique. 



Type locality: Station 6833, Tanner Canyon, 32°-37'-54"N, 118°- 

 58'-40"W, 813 m, January 29, 1960. 



Relationship: This species differs from Oediceropsis trepadora (J. L. 

 Barnard 1961b) in the anteriorly truncate first coxa. 



Oediceropsis (Paroediceroides) trepadora (J. L. Barnard), 



new combination 



(Fig. 33) 

 Paroediceroides trepadora J. L. Barnard 1961b: 96, fig. 64. 



Material: 6839, male, 5.0 mm. 



Remarks: This specimen corresponds to that figured by Barnard in 

 all characters except pereopod 4 which has a more slender article 2. 

 From lateral view the cephalic lobe seems sharper but further rotation 

 of the head shows that the lobe fits the figure of Barnard; it is shown 

 herein in a subsidiary figure. 



Mouthparts are like those of Oediceropsis brevicornis Liljeborg 

 (Sarsl895:pl. 114). 



Synchelidium sp. G, var. 



Canyon material: 5006 ( 1 ) , 6803 ( 15) . 



Synchelidium rectipalmum Mills 



Synchelidium rectipalmum Mills 1962a: 17-19, figs. 5, 6B. 

 Canyon material: 4852(6). 



Synchelidium shoemakeri Mills 



Synchelidium shoemakeri Mills 1962a: 15-17, figs. 4, 6A. 

 Canyon material : 4852(9) , 6499(1). 



Synchelidium spp. 



Canyon material: 6S35 (2), 7031(1), 7039(1). 



