82 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 27 



the maxillipeds and first maxillae and the short fifth article of the 

 gnathopods ; from Pardaliscopsis Chevreux in the symmetrical upper lip 

 and gnathopods; from Necochea J. L. Barnard in the well-developed 

 second maxillae and normal coxae; from Parahalice Birstein & Vino- 

 gradov (1962) in the simple pereopods ; from Arculfia J. L. Barnard 

 (1961b) and Princaxelia Dahl (1959) in the gnathopods and lack of 

 urosomal teeth, 



Tosilus arroyo, new species 



(Fig. 35) 



Diagnosis: With the characters of the genus. 



Description: Third pleonal epimeron w^ith medium-sized, upturned 

 tooth ; coxae poorly preserved and not accurately represented in the 

 figures herein ; head poorly preserved and only partially reconstructed 

 in the figure. 



Holotype: AHF No. 6010, female, 3.8 mm. Unique. 



Type locality: Station 7049, La Jolla Canyon, 32°-49'-37" N, 

 117°-35'-12"W, 976 m, May 7, 1960. 



Family PHOTIDAE (ISAEIDAE = senior synonym) 



Amphideutopus oculatus J. L. Barnard 



Amphideutopus oculatus J. L. Barnard 1959c: 34-35, pi. 10; J. L. 

 Barnard 1961a: 181, fig. 2. 

 Canyon material: 5367(3), 7031 (4). 



Eurystheus thompsoni (Walker) 



Eurystheus thompsoni (Walker). — Shoemaker 1955b: 59 (with refer- 

 ences) ; J. L. Barnard 1959c: 36, pi. 11; J. L. Barnard 1961a: 

 182. 

 Canyon material : 4852 ( 5 ) , 6805 ( 1 ) . 



Megamphopus sp. 



Canyon ma/mfl/.- 6803(2) , 6804(2). 



Photis bifurcata J. L. Barnard 



Photis bifurcata J. L. Barnard 1962a: 30-31, fig. 10. 

 Canyon material: 4852(9). 



Photis brevipes Shoemaker 



Photis brevipes Shoemaker 1942: 25-27, fig. 9; J. L. Barnard 1962a: 



31-33, fig. 11. 



Canyon material: 4851(5), 4852(46), 5367(3), 6803(7), 6821(3), 

 6822(?1), 6845(3), 6846(2). 



