GALIMARIDEAN AMPHIPODA 55 



Distribution'. — Tasman Sea and the northeastern Pacific Ocean, 

 842-3580 m. 



Cyphocaris Boeck 



Cyphocaris anotiyx Boeck 



Cyplwcaris anonyx Boeck. — Hurley, 19G3, p. 25 (with references). 



Material.— Stations 7229(2), 7235(2). 

 Distribution. — Cosmopolitan in bathypelagic depths. 



Euonyx Norman 



Euonyx laqueus, new species 



Figures 23, 24 



Diagnosis. — Eyes absent or poorly developed ; lateral cephalic lobe 

 projecting forward snbobtusely; epistome and upper lip fused to- 

 gether and asymmetrically sinuous on anterior margin ; articles 5 

 and 6 of gnathopod 1 subequal in length ; palm of gnathopod 2 much 

 shorter than posterior margin of article 6 but excavate and nearly 

 transverse; article 4 of pereopods 3-5 very broad, slightly tapering 

 distally but not produced strongly posterodistally; pleonal epimera 2 

 and 3 with acutely but slightly produced posteroventral corners; 

 urosomite 1 lacking dorsal process. Accessory flagellum with 8-10 

 articles. 



HoLOTYPE. — AHF No. 6111, male, 19.0 mm. 



Type-locality. — Allan Hancock Foundation Ace. No. 1961-15, 

 61A6-41A, Sept. 11, 1961, 8.5 mi west of San Benitos Islands, Baja 

 California, 28°20' N, 115°45' W, 1187 m, deep-sea free trap (suspended 

 above bottom) , bottom depth not recorded. 



Material. — 26 specimens from the type-locality. 



Relationship. — This species differs from E. talismani Chevreux 

 (1919, see 1927 for figures) in the lack of well-marked eyes, the more 

 rounded lateral cephalic lobe and the shorter and less excavate palm 

 of gnathopod 2. 



It differs from E. cheJatus Norman (see Sars, 1895, pi. 40, fig. 1) 

 by the absence of a carina on urosomite 1 and the rounded, not acutely 

 produced epistome. 



Euonyx coecus Pirlot (1933) has a shorter fifth article of gnathopod 

 1 and the shapes of pereopods 3-5 differ from those of E. laqueus. 



Euonyx normani Stebbing (1888) has a very short fifth article of 

 gnathopod 1 and very slender articles 4—6 of pereopods 3-5. 



Euonyx hiscayensh Chevreux (1908 and see J. L. Barnard, 1961) 

 has a very short, nonexcavate palm on gnathopod 2. Possibly the 

 material at hand represents a subspecies of E. hiscayensis. 



