NO. 3565 POLYCHAETA AND AMPHIPODA—REISH AND BARNARD 5 
TaBLE 1.—Comparison of the polychaetes from Morro Bay with those from other 
California bays 
San Los Alamitos New- Catalina San 
Fran- Angeles Bay 3 port MHarbor® Quintin 
Species cisco Long Bay 4 Bay 8 
Bay ! Beach 
Harbors? 
Anattides williamsi x x 
Eteone californica x 
E. dilatae 
Hypoeulalia bilineata 
Exogone lourei 
Sphaerosyllis hystrix 
Typosyllis fasciata 
Nereis latescens 
N. procera 
Platynereis bicanaliculata 
Nephtys caecoides 
Lumbrineris zonata 
Stauronereis articulata 
Haploscoloplos pugettensis 
Scoloplos acmeceps 
Nerinides acuta 
Boccardia polybranchia 
P. ligni 
Prionospio cirrifera 
P. pygmaeus x 
Pseudopolydora kempi 
Streblospio benedicti 
Spiophanes missionensis x 
Magelona ? papillicornis 
Cossura longocirrata 
Ctenodrilus serratus 
Armandia bioculata 
Capitella capitata 
Heteromastus filiformis 
Axiothella rubrocincta 
Pista alata x 
Chone infundibuliformis 
Spirorbinae 
Number of species in common 18 15 16 16 12 15 
Percent in common 55 45 48 48 35 45 
rd 
rr dd 
aia 
Mr PM 
Mm Me MM 
Pm Pd PX 
PPS PP Pd Pd OP 
at eh ad aia! 
» 
Pos 
m4 
rm 
a 
rs 
a 
Po Pd PS PS 
Mm MR 
ia 
rr 
Part PM 
x 
x 
| Hartman, 1954a; Jones, 1961. ? Reish, 1959b, 1961. * Reish, 1961, 1963a. ‘ Reish, 1959a. * Reish, 1964. 
6 Reish, 1963b. 
(886). Of the 26 stations from which polychaetes were taken, E. 
louret was present at 19, H. filiformis at 17, C. capitata at 15, and 
S. benedicti at 14. 
The community structure of the polychaetes follows the general 
pattern of the sediment characteristics discussed above. The sandy 
