NO. 5 BARNARD: AMPHIPODA 59 



Diagnosis: Antenna 1 exceeding peduncle of antenna 2 by length 

 of article 5 of antenna 2 ; antenna 2 about as long as first 9 body seg- 

 ments; corneal lenses absent (holotype with calcareous concretion on 

 left side of head, absent on right) ; front of head concave for insertion 

 of antenna 1, rostrum moderately prominent, lateral cephalic lobe 

 slightly pointed ; anteroventral margin of head weakly oblique ; pereopod 



2 not elongated and enlarged like that of Byblis lepta (Giles) ; article 

 5 of pereopod 3 lacking posterior lobe ; article 7 of pereopod 5 half 

 as long as article 6 ; coxa 4 shallow ; distolateral end of peduncle of 

 uropod 2 with short falciform process; facing edges of rami of uropod 



3 serrate ; telson cleft almost halfway. 



Holotype: AHF No. 605, ?male, 9.5 mm. 



Type locality: Station 6833, Tanner Canyon, California, 32°-37'- 

 54"N, 18°-58M0"W, 813 m, January 29, 1960. 



Canyon material: 3 specimens from the type locality. 



Basin material: 5935, Catalina Basin (2) (identified as B. barbar en- 

 sis in Barnard ( 1960a) and Hartman and Barnard (1960) ). 



Relationship : The antennae of this blind species are intermediate be- 

 tween those of B. barbarensis J. L. Barnard (1960a) and those of B. 

 crassicornis Metzger (see Sars 1895: pi. 66, fig. 1). In B. crassicornis 

 the first antenna is nearly as long as the second ; in B. barbarensis it 

 scarcely exceeds the peduncle of antenna 2. Article 7 of pereopod 5 is 

 shorter than in either of the other species and coxa 4 is much more 

 shallow. Margins of the rami of uropod 3 of B. crassicornis are almost 

 smooth. 



Byblis veleronis J. L. Barnard 



Byblis veleronis J. L. Barnard 1954b: 52-54, pis. 37-38. 



Canyon material: 6803(2), 6804(?16), 6805(2), 6806(4), 6819 



(1), 6846(1), 7728(1). 



Slope material ; 2227 ( 5 ) , 2344 ( 1 ) , 2423 ( 1 ) , 303 1 ( 2 ) . 



Byblis spp. 



Material: 5941 ( 1 ) , 6092 (2 ) , 6338 ( 1 ) , 6343 ( 1 ) , 6809 ( 1 ) . 



Haploops spinosa Shoemaker 



(Figs. 7, 8) 

 Haploops spinosa Shoemaker 1931 :13-18, figs. 5, 6. 

 Haploops tubicola. — J. L. Barnard 1960a: 35 (not Liljeborg in Sars 



1895); PHolmes 1908:518. 



Canyon material: 485 1(1). 



