210 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



lar and (8X7) somewhat narrower radial canals all connected by 

 anastomosing side branches. The eight rhopalar canals lead straight 

 out to the rhopalia, but the 56 inter-rhopalar canals tend to lose 

 themselves in the network of vessels. No distinct ring canal. 

 Numerous small yellowish spots over the exumbrella and reddish 

 brown dots over the outer surface of the arm disk and reddish-brown 

 streaks around the warts of the exumbrella. 



CEPHEA CEPHEA, var. COEKULEA, atypical. 



Cephea coerulea Vanhoffen, 1902, Wissen. Ergeb. deutsch. Tiefsee Expedi- 

 tion Valdivia, vol. 3. Lief. 1, p. 45, fig. 13, 14. — Mayer, 1910, Medusae 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. Cat. No. 28715, U.S.N.M. 



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 two small ocular and eight completely 

 fused velar lappets in each octant, forming mere 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 direc- 

 tion, and 44 mm. long. There are three to six slender filaments 

 among the mouths of each moutl> 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 Vanhoffen's C. coerulea from the east coast of 

 Africa. 



There are eight rhopalar radial canals which extend straight to 

 the sense organs, and in addition there are from five to seven inter- 

 rhopalar canals in each actant, which anastomose and lose their iden- 

 tity in a wide network of vessels which send branches to the rhopa- 

 lar canals. The subgenital porticus is unitary. A color note states 

 that the mouth arms were pale hyaline blue and raw umber. 



CEPHEA, species. 



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 Janu- 

 ary, 1912. 



