Meduse of the Philippines and of Torres Straits. 185 
Cephea cephea var. ccerulea, non typical. 
Cephea cerulea, VANHOFFEN, 1902, Wissen. Ergeb. deutsch. Tiefsee Expedition, Valdivia, Bd. 3, 
Lief. 1, p. 45, Taf. 4, Fign. 13, 14.—Maynr, 1910, Medusz of the World, vol. 3, p. 657. 
One well-preserved specimen of this medusa was found by the Albatross at 
Station D 5457, June 8, 1909, 5 miles off Legaspi Light, east coast of Luzon. 
The bell is flat, 109 mm. wide, with a low dome-like apex 34 mm. wide which 
is completely covered with long, conical, wart-shaped protuberances. There 
are 2 smal] ocular and 8 completely fused velar lappets in each octant, forming 
mere exumbrella thickenings on the exumbrella side of the bell-wall, and 
bridged over on the subumbrella side by a web of tissue. The arm-disk is 
50 mm. wide and the mouth-arms are laterally flattened, 29 mm. wide in the 
radial direction, and 44 mm. long. There are 3 to 6 slender filaments among 
the mouths of each mouth-arm. These taper to pointed ends and the longest 
are only 13 mm. long. There are no filaments upon the central parts of the 
arm-disk, but there are some at the bases of the mouth-arms. The filaments 
are thus much smaller and less numerous than in Vanhdffen’s C. cerulea from 
the east coast of Africa. 
There are 8 rhopalar radial-canals which extend straight to the sense- 
organs, and in addition there are from 5 to 7 inter-rhopalar canals in each 
octant, which anastomose and lose their identity in a wide network of vessels 
which send branches to the rhopalar canals. The subgenital porticus is 
unitary. A color note states that the mouth-arms were pale hyaline blue and 
raw umber in color. 
Cephea, sp. 
Five specimens of Cephea, too poorly preserved to be determined specifically, 
were collected at the following stations: 
April 25, 1909, from Manila Bay, surface. 
April 29, 1909, from Manila Bay, behind the breakwater. 
D 5452, June 7, 1909, off Legaspi Island, east coast of Luzon. 
D 5453, June 7, 1909, off Legaspi Island, east coast of Luzon. 
D 5461, June 14, 1909, Carino Island, east coast of Luzon. 
Light (1914) records Cephea cephea from Manila Bay in January 1912. 
Genus COTYLORHIZA L. Agassiz, 1862. 
Cotylorhiza, AGassiz, L., 1862, Cont. Nat. Hist. U.S., vol. 4, p. 152. 
GENERIC CHARACTERS. 
Rhizostomata dichotoma with 8 simple, bifurcated mouth-arms, the terminal 
branches of which branch pinnately. The 4 subgenital ostia are simple and 
funnel-shaped, and there is a single subgenital porticus. The appendages 
upon the mouth-arms are mounted upon pedunculated filaments. There are 
8 marginal sense-organs and numerous radial-canals which anastomose lat- 
erally without any definite ring-canal in the adult. The sense-clubs have no 
ocelli and no exumbrella sensory pit. There is a unitary peripheral zone of 
circular muscles and an inner zone of radial-muscles in the subumbrella. The 
exumbrella is smooth and without an aboral ‘‘sucker-like”’ depression, but with 
a prominent central dome without wart-shaped elevations upon it. 
Cotylorhiza pacifica, sp. nov. 
A single specimen of this interesting medusa was obtained at the launch 
landing in Manila Bay, Luzon, Philippine Islands, on January 24, 1908. 
Unfortunately it was cut into several pieces before being preserved and this 
