138 U.S. NATIONAL MUSEUM BULLETIN 2 58 



on the fourth articles of pereopods 3-5. A good intermediate form with 

 grandicornis-\\ke gnathopods combined with novizealandiae pereopods 

 occurs at Tristan da Cunha. Two major cycles in gene distribution 

 may occur in this species complex, a great circle among Japan, Cali- 

 fornia, and New Zealand and a circum-antiboreal cycle among New 

 Zealand, South America, and South Africa (with Tristan da Cunha 

 individuals showing a stronger tie to South America than to South 

 Africa). The South African novizealandiae forms may be related to a 

 continuation of the Japan-California circle which has been carried 

 westward through the Indian Ocean. More study of the possible co- 

 occurrence of phenotypes is required in South America and Japan as 

 well as California. Collections from California do not reveal a grandi- 

 cornis form and, strangely, the specimens at hand are extremely few 

 in comparison to the enormously abundant Hyale rubra f re quens. 



Material. — carmel: cobble-pelvetiid grid, second most abundant 

 species (54 per sq. m.); Ulva sp., present, hazard canyon: algal 

 turf, moderately abundant (30 per sq. m.). playa del rey lagoon 

 (near Santa Monica), November 14, 1960 (9 specimens), la jolla: 

 goose-neck barnacles, present. 



Distribution. — Carmel, California to La Jolla; so rarely occurring 

 south of Pt. Conception that presumably the species is assignable to 

 the Oregonian province. 



Hyale plumulosa (Stimpson) 



Hyale plumulosa (Stimpson) : Thorsteinson, 1941, pp. 55-56, pi. 1, figs. 10-15. 

 Material^ — hazard canyon: algal turf, rare (11 per sq. m.). 



Hyale rubra rubra (Thomson) 



Figure 24 a-e 



Hyale rubra (Thomson) : Hurley, 1957, pp. 910-913, figs. 30-50 (with synonymy). 



These few specimens are like H. rubra jrequens as described below, 

 with similar gnathopod 2, and with a general aspect almost identical 

 to that figured by J. L. Barnard (1962c) except as follows: all pereopods 

 with distalmost spine on article 6 faintly striate, posterior setal row 

 on article 6 of gnathopod 1 broadly spread, setae longer, ramus of 

 uropod 3 slightly shorter and apex of maxillipedal palp article 4 

 with a bundle of long setae. These characters correspond to those 

 figured for H. rubra by Hurley (1957). 



Material. — Barnard station 36, Cedros Island, Baja California, 

 2 miles southeast of north point, March 21, 1959, 1 specimen in 

 intertidal wash of Phyllospadix sp. "Velero III" station 1370, White 

 Cove, Santa Catalina Island, southern California, kelp holdfasts on 

 shore north of pier, June 20, 1941, 2 specimens. 



