SEMA KOSTOME/E — CYANKA. 601 



like clusters of developing planula gathered into the peripheral canals of the gastric space. 

 The gelatinous substance of the disk is translucent milky-blue in color, while the gastro- 

 vascular space, gonads, radial and circular muscles of the subumbrella and the entodermal 

 cores of the tentacles are purplish-pink. The outer parts of the veil-like folds of the palps are 

 amber-brown, while the parts adjacent to the mouth are pink. The concretions of the 8 

 sense-organs are reddish-brown. The planulae are yellow, but the ephyra is pink. 



The curtain-like oral fringes are relatively smaller than in Cxanca arctica. However, 

 the chief distinction of C. versicolor is its peculiar pink coloration. Even in the young rphyra 

 onl\- 2.5 mm. in diameter, the stomach-cavity displays a deep purplish-pink, very different 

 trom the pale )ellow-colored ephyra of the southern C. jidva. 



Mature medusx of C. versicolor occur in the winter months alono; our southern coast. 



Among thousands observed bv the author during the winter of igo4-05 not more than a 

 dozen lacked the pink coloration and these resembled the variety C. capillata var. fiilva. They 

 were, however, swimming among swarms of the typical pink versicolor medusae. The variety 

 versicolor appears to be a well-marked local race of Cyanea capillata. 



Cyanea capillata var. nozakii Kishinouye. 

 CyaniFa nozakii, Kishinouye, 1891, In [apancsc, ^ pp., I plate. 



Kishinouye's paper upon this medusa is in [apanese, but with a German abstract, and 

 accompanied by two clear figures of the animal. The bell is flat and shield-shaped, 5 times 

 as wide as high, ifto to 260 mm. wide. The bell-radius is 3 times as wide as the radius of the 

 central stomach. 16 rounded ephyra lappets, twice as wide as long. The ocular stomach- 

 pouches are nearly rectangular. The tentacular stomach-pouches are twice as wide at their 

 bases, and at the zone of the sense-organs 2.5 times as wide as the ocular pouches. Color, 

 milk-white. Found in the Inland Sea of Japan. 



This medusa is distinguished from Cyanni tapillota var. jiilva onl\' b}- its color. 



Cyanea annaskala von Lendenfeld. 



Cyanea annaskala, von Lendenfeld, 1S82, Zeit. fiir wisscn. Zool., Bd. 37, p. 46<;, taf. 27-33, 7^ fig"-! 18S4, Proc. Linnean Soc. 



New South Wales, vol. 9, p. 275, var. Tnari>inata, Ibid., p. 928, var. purpura, Ibid., p. 928; 1883, -Annals and Mag. Nat. 



Hist., ser. ij, vol. 12, p. 261 (nettling cells); 1887, Descript. Cat. .Australian Mus. .Svdney, Medusa", part I, pp. 20, 21. 

 Cyanea muelleriantbe, Haacke, 1S87, Jena. Zeit. fiir Naturwissen., Bd. 20, p. 605, taf. 36, fign. 1-4; iSSS, Biol. Ccntralblatt, Bd. 



8, p. 358. 

 Desmonema rosea, .'^ciASslz, A., and Mayer, 1898, Bull. Mus. Com p. Zool. at Harvard College, vol. 32, p. 15, plate I, fig. I (young 



medusa in the Desmonema stage). 

 Cyanea muUerianthe=C. annaskala, von Lendenfeld, 1888, Biol. Centralblatt, Bd. S, p. 218. 

 Desmonema annasethe ( .'' young medusa), Haeckel, 1880, Syst. der Medusen, p. 526, taf. 30, fign. 1-4. 

 Cyanea rosea ( .^ young medusa). QtoY et Gaimard, 1824, Voyage de 1' Vranie, Zool., p. 570, planche 85, figs, i, 2. 

 ( ?) Cyanea purpura, Kishinouye, 1910, Journal College .Sci. Tokyo, vol. 27, art. 9, p. 18, y\AU- 4. figs. 18, 19. 



Umbrella flat, shield-shaped, 70 to 200 mm. wide and about 12 to 25 mm. thick, with 

 a few protruding nettling-warts at the middle of the exumbrella; elsewhere smooth. 8 marginal 

 sense-organs which lack ocelli, and with 32 marginal lappets divided into 8 main flaps of 4 

 lappets each. These lappets are evenly rounded and not wider at the end than at their bases; 

 the 16 ocular lappets are about half as wide, as also are the 16 velar lappets adjacent to them. 

 There are 8 U-shaped clusters of long tentacles arising trom the floor of the subumbrella, 

 with the concavity of each U directed outward. These tentacles are very numerous and are 

 arranged in 3 to 4 crowded rows in each U; thev are filiform and when extended are about 

 300 mm. long. The 4 complexly folded, curtain-like lips are about as long as the bell-radius. 

 The 4 protrusive gonads are large and complexly folded. The 8 ocular, radial pouches of 

 the central stomach are only about half as wide as the 8 velar pouches. All of the pouches 

 break up into blindU-eiuling, branched, non-anastomosing vessels in the lappets. There is 

 no ring-canal. The gelatinous substance of the disk and the tentacles are colorless. The 

 entoderm of the gastral cavity is brown. Curtain-like lips intensely purple. Genital organs 

 of the male are rose-colored; those of the female are orange-yellow. The medusa is distin- 

 guished from the Cyaneas of the northern hemisphere mainly by its brilliant coloration. It 

 appears to be more closely related to C. versicolor than to any other form, and it is interesting 

 to observe that C. versicolor is the most southerh' in its range of aiu' of the northern Cvaneas. 



