1889.] On a Few Calif ornian Mediiscs. 593 
by a beautiful 'iidiata. This species, like the 
Atlantic, has eight 
sense-bodies on the 
bell-margin, be- 
tween which there 
tentacles as repre- 
K] sonted in Fig. 2, 
The color is more 
pinkish than that of 
fiavidula, but the 
Fig. 2.—Aure/ia labiata, specimens observed 
are smaller. It was met with but once in my surface fishing in 
the Santa Barbara Channel, but north of Santa Barbara, at Monte- 
rey, it was found several times, and according to trustworthy 
reports this jelly-fish is very common, in certain months of the 
year, along the west coast of the United States, 
One of the most beautiful, conspicuous and abundant jelly- 
fishes found in the Santa Barbara Channel in the Spring months 
is a genus Polyorchis, represented by a single species, Polyorchis 
penicillata (A. Ag.) This Medusa is common in all stages of growth, 
and often swarms in the waters about the landing places. It is 
easily recognized by the peculiar character of the radial chymifer- 
ous tubes, which are four in number, and from their sides there 
arise lateral branches as shown in the figure. The ovaries hang 
from the upper portion of the manubrium from a gelatmous 
elevation or extension of the bell which bears the probos- 
cis. This position of these organs is peculiar, for while 
Polyorchis belongs to the so-called Tubularian hydroids, in none 
of which these otocysts are situated on the bell margin, the 
position of the sexual bodies is exceptional. In the majority of 
the Tubularian or Anthomedusan hydroids the sexual bodies arise 
from the proboscis itself, but here these bodies hang from a 
gelatinous extension of the bell, or, more exactly, form the radial 
tubes which cross this prominence. Practically, therefore, we 
have here a Medusa which has characters of hydroids like Sarsia 
and those like Oceania, representatives of two groups, for while 
Am. Nat.-July._3 
