Pomona College, Claremont, California 13 
missuralis, on live Mytilus. Abundant. With medusae in Decem- 
ber, 1920. 
CORYMORPHIDAE: Large, solitary hydranth with basal and 
distal whorls of filiform tentacles. Medusae produced just within 
basal tentacles. 
Corymorpha palma Torrey. Hyd. Pacific Coast. U. C. pub. 
“ool: yol-leno. 1,’ p. 37. 
A very large and beautiful species found abundantly in quiet 
pools. Solitary, rooted in sand by filamentous processes. Proximal 
tentacles 18-30 in number. Balboa Bay, in sandy pool. Usually 
numerous in unexposed places. 
TUBULARIIDAE: Solitary or colonial. Large, often bright 
pink in color. Hydranths with a basal and a distal whorl] of filiform 
tentacles. Sporosacs are pendant clusters. 
Tubularia crocea (Ag.) Allman. Gym. Hyds. 1871. Dense col- 
onies, 8-10 cms. in length. Few branches. About 20-24 basal ten- 
tacles. On piles with other hydroids, tunicates, crustacea and 
mollusca. Low tide, December, 1920. Long Beach, Cal. 
Tubularia sp. Distinguishable from above species in several 
characters but not corresponding with any available discriptions. 
I am not inclined to think it the T. marina of Torrey. Growing 
with the above species at Long Beach. Rather rare. Probably the 
same species discussed by Professor Bean in the Fourth Laguna 
Report of Pomona College. Specimens also collected during the 
summer of 1921. 
SERTULARUDAE: Colony usually branching; hydrothecae ses- 
sile, forming a double row along opposite sides of hydrocaulus; 
gonangia large, few, no free medusae. 
Sertularia furcata Trask. Proc. Calif. Acad. Sc., 1854, I, p. 
PZ. 
This is a very variable species but ours are typical and agree 
with figured specimens of several authors. Gonangia were numer- 
ous on colonies taken at Huntington Beach, April, 1921, from piles 
under the pier. Numerous, on stalks of algae and on rope. 
Sertularia tricuspidata Hincks. Hist. Brit. Zoophytes. London, 
8. 
This is a very common species at Laguna Beach, growing in 
great numbers on Fucus with other hydroids. Inshore tide zone. 
January, 1921. With a creeping rootstock on which there are a few 
gonangia, ripe. Hilton. 
