GAMMARIDEAN AMPHIPODA 55 



Aoroides columbiae 1, Calliopiella pratti 5, Cerapus tubularis 1, 

 Cheiriphotis megacheles 1, Chevalia aviculae 3, Elasmopus sp. juvs. 



2, Ericthonius brasiliensis 2, Hyale rubra frequens 51, Ischyrocerus 

 sp. 1, Jassa falcata 2, Maera sp. juv. 1, Parajassa angularis 1, Photis 

 conchicola 19. 



43-J-2, wash of Phyllospadix roots: Ampithoe simulans 1, Ampithoe 

 sp. juvs. 8, Amphilochus litoralis 3, A. neapolitanus 2, Aoroides 

 columbiae 1, Atylus levidensus 3, Calliopiella pratti 27, Chevalia 

 aviculae 5, Corophium baconi 1, Elasmopus antennatus 1, Elasmopus 

 sp. juvs. 37, Eurystheus spinosus 1, £". thompsoni 1, Hyale rubra 

 frequens 88, Ischyrocerus sp. A 31, Jassa falcata thin 22, Leucothoe 

 alata 2, Maera simile 1, IMicrodeutopus schmitti 1, Micro jassa litotes 



3, Parallorchestes ochotensis 2, Photis conchicola 1, Photis sp. juvs. 

 9, Pontogeneia rostrata 12. 



43-S-l, % 4 th sq. m. of short-cropped brown algae on top of rock: 

 Oligochinus lighti 49, Parallorchestes ochotensis 10. 



43-S-2, }4 4 th sq. m. of new growth of brown algae: Ampithoe sp. 

 juvs. 2, Aoroides columbiae 10, Elasmopus antennatus 48, Hyale rubra 

 frequens 20, Parallorchestes ochotensis 17, Paraphoxus spinosus 38, 

 Photis conchicola 6. 



Station 42, Hazard Canyon reef, California, December 8-9, 1961, 

 three grids of samples on platform of algal turf, amphipods listed 

 as individuals per square meter. 



Lines A, B: Hyale grandicornis calif ornica 30, H. rubra frequens 130, 

 Oligochinus lighti 30. 



Lines C, D, E: Allorchestes anceps 30, Ampithoe pollex 467, Aoroides 

 columbiae 50, Elasmopus rapax mutatus 61, Hyale rubra frequens 139, 

 Jassa falcata 33, Lysianassa macromerus 6, Metopa cistella 11, 0£i<7- 

 ochinus lighti 4600, ^Parallorchestes ochotensis 6, Parapleustes nautilus 

 11, Photis sp. juvs. 11. 



Lines F, G, H: Allorchestes anceps 61, Ampithoe pollex 194, Aoroides 

 columbiae 128, Elasmopus sp. juvs. 133, Eurystheus thompsoni 6, 

 Hyale plumulosa 11, H. rubra frequens 700, Ischyrocerus sp. A 122, 

 ischyrocerid juvs. of sp. A and Jassa falcata 50, Jassa falcata thin 

 61, Oligochinus lighti 755, Parallorchestes ochotensis 205, Paraphoxus 

 obtusidens 22, P. spinosus 11, Parapleustes nautilus 389, P. puget- 

 tensis 55, PAofis conchicola 22, PAofis sp. juvs. 22, Pontogeneia 

 rostrata 44, Stenothoides burbanki 44, Stenula incola 6. 



42-B-4-X, wash of clumps of coralline algae immersed in tidepool: 

 Ampithoe pollex 1 , Ericthonius brasiliensis 1 , Hyale sp. 1 , Oligochinus 

 lighti 11, Parallorchestes ochotensis 1, Parapleustes nautilus 2. 



280-102 0-69— 5 



