GAMMARIDEAN AMPHIPODA 95 



occurring abundantly in dredged samples from the Channel Islands 

 off southern California in depths of about 60 m.; recorded from the 

 mainland shelf in depths of 6 to 30 m. 



Calliopiidae 



Calliopiella pratti J. L. Barnard 



Figures 7-8 

 Calliopiella pratti J. L. Barnard, 1954a, pp. 6-7, pis. 6-8. 



Better materials than originally described permit a complete re- 

 figuring of this species. 



Material. — cayucos: Phyllospadix-ipelvetnd grid, 4th most abun- 

 dant species (1304 per sq. m.); scrapings of red anemone, present; 

 buried cobbles, scarce; Macrocystis holdfast, rare; soft polychaete 

 tubes, scarce; sponge and tunicate, scarce; shell fragments, present; 

 Laminaria and corallines, scarce; Amaroucium sp., abundant, goleta: 

 Phyllospadix-peivetiid grid, rare (5 per sq. m.). 



Distribution. — Coos Bay, Oregon, to Goleta, California, inter- 

 tidal. A northern species scarcely penetrating to the south of Pt. 

 Conception; absent at Carmel presumably from lack of surf protection 

 at that locality. 



Notes on Bouvierella Chevreux (1900) 



This genus is scarcely distinct from Halirages Boeck and indicates 

 the close relationship of Halirages and Atylopsis Stebbing. The type 

 species, Bouvierella carcinophila (Chevreux), differs from the type 

 species, Halirages fulvocinctus (Sars), by the absence of dorsal seg- 

 mental processes, the shorter telson and the shorter peduncle of 

 uropod 3. Halirages mixtus Stephensen (1931) intergrades H. julvo- 

 cinctus and Bouvierella carcinophila by having an intermediate telson 

 and peduncle of uropod 3 and by lacking dorsal segmental processes. 

 Otherwise, all species of Halirages bear dorsal processes. Bouvierella 

 is a blind, bathyal taxon; according to Chevreux the head has poorly 

 produced lateral lobes and indeed his drawing is quite dissimilar to 

 the heads of various species of Halirages which have an obsolescent 

 lateral notch marking a distinct lateral lobe. 



Halirages and Bouvierella differ from Atylopsis by the absence of 

 inner lobes on the lower lip. Stephensen (1931) has held that the 

 presence or absence of these lobes is of little generic value. Never- 

 theless, they remain the only significant character difference among 

 several calliopiid genera. 



By expanding the diagnosis of Halirages it would be possible to 

 add Bouvierella, but that event must await reexamination of speci- 

 mens of the latter genus in light of remarks made here. 



