NO. 4 SCHULTZ: ISOPODA 13 



seventh segment shorter than first. Pleonal segments distinct ; lateral 

 edges visible in dorsal view, especially last few. Peraeopods one and two 

 somewhat chelate, but not three to seven. Segment five of peraeopod 

 seven about half as long as segment six. Nine flagellar articles on second 

 antennae; five on first. Maxilliped with palp of five (four free) seg- 

 ments. iVIandible with palp of three segments, apical one with large spine 

 and comb of setae and second one with at least one large seta, Telson 

 with pair of statocysts and two ridges running about one-half proximal 

 length with medial groove between ridges continuous with groove of 

 sixth pleonal segment. Uropodal endopod longer than telson ; tips of 

 both exopod and endopod with tuft of many long stiiif setae originating 

 from apex of margins. 



Measurements: Holotype female with marsupium 21 mm long. 



Type locality: 6832; Tanner Canyon; 1298 m; Jan. 29, 1960; 

 green mud. Lat. 32° 33' 36"N, Long. 1 18° 55' 40"W. 



Materials examined: (ym2{\0) ■,6^S\{\) •,10AU\). 



Distribution: The species was caught in the most southern canyons, 

 at 783 m in La Jolla Canyon and at 812 m in Coronado Canyon, in 

 addition to the type locality. 



Affinities: See generic description. 



Haliophasma Hasvvell 



Haliophasma geminata Menzies and Barnard 



Haliophasma geminata Menzies and Banard, 1959, pp. 17-19, figs, 11, 

 12. 



Haliophasma geminata Schultz, 1964, p. 312. 



Materials examined: 2361(2) ; 2725(7) ; 2727(2) ; 2789(4) ; 2793 

 (1); 2999(1); 3000(2); 3179(1); 3385(5); 6805(1); 6806(1); 

 6835(1); 6845(2); 6846(2); 7038(1); 7052(1); 7174(12); 7175 

 (1). 



Distribution: The species was taken within the depth ranges previ- 

 ously recorded, but further south (Coronado Canyon) than previ- 

 ously recorded. 



Remarks: The mouth parts are chewing, not piercing and sucking 

 as recorded in Menzies and Barnard ( 1959, p. 17). 



