IS 



496 MEDUSAE OF THE WORLD. 



as long as bell-radius. About 13 well-developed tentacles without swollen basal-bulbs. A few 

 cirri on the sides of the tentacle-bases. A few marginal waris all on the exumbrella side of the 

 ring-canal. There are 8 gonads, 2 on each radial-canal; a small oval gonad in the mid-region 

 of the peduncle and one from the base of the peduncle to near the bell-margin on each radial- 

 canal. Hartlaub describes the medusa from two specimens, both apparently immature. 

 It is probably only a variety of E. campanulata. It is not identical with Eutima oriental 

 described by Browne from Ceylon. 



Eutima modesta. 

 Eutimalphes modesta, Hartlaub, 1909, Zoologische Jahrbiich., Abth. Syst., Bd. 27, p. 454, taf. 19, fign. 6, 7. 



Bell about 8 mm. wide, flat, and thin-walled. Peduncle slender, tapering, and about 

 as long as bell-radius. Stomach small, with 4 pointed lips, 4 narrow radial-canals with 4 

 linear gonads a little nearer to peduncle than to margin. There are 16 well-developed tenta- 

 cles with swollen basal-bulbs flanked by cirri and there are also 16 or more tentacle-bulbs 

 each with I or 2 lateral cirri. 8 large oval adradial lithocyst-capsules. Number of concretions ( ?) 

 A single specimen from Djibuti, east coast of Africa, May 14, 1904. This species is closely 

 related to E. ccerulea of the West Indies, but is distinguished by its thin-walled bell, fewer 

 tentacles, and shorter gonads. (See synoptic table of species of Eutima on page 296.) 



Eirene pellucida (see page 314). 

 Irene pellucida, Hartlaub, 1909, Zoologische Jahrbiich., Abth. Syst., Bd. 27, p. 448, taf. 19, fign. 5, 8-10. 



Hartlaub identifies this Mediterranean medusa from a single specimen from Djibuti, 

 east coast of Africa. The gonads are, however, nearer to the bell-margin than in the Medi- 

 terranean form according to Claus, but Hartlaub finds that in some specimens from Trieste 

 the gonads are similar to the African medusa in form and position, and indeed in Will's, 1844, 

 figure the gonads on the subumbrella pans of the radial-canals are near the bell-margin. 



Studies at Naples inclined me to conclude that Eirene pellucida Will is only the young of 

 Tima lucullana, but Hartlaub's African medusa is apparently not the young of a Tima, and 

 I now believe that I was mistaken in supposing that Eirene pellucida is the young of a Tuna, 



Will, 1844, gives a clear description of Eirene pellucida from Trieste. Bell 25 mm. wide, 

 nearly hemispherical, thick-walled. About 64 tentacles, the longest half as long as the bell- 

 radius. Numerous marginal warts and cirri. An irregular number (40 or more) of lithocysts 

 each with I to 9 spherical concretions. Velum narrow. Peduncle tapering, not very wide, 

 and flaring at base, and only about as long as the bell-radius. Stomach small with 4 simple 

 lips. When young there are 8 gonads upon the radial-canals, 4 on the peduncle, and 4 on the 

 subumbrella near the ring-canal, but later the gonads fuse into 4 long, linear tracts. Medusa 

 colorless with the exception of the stomach, gonads, and tentacle-bulbs which are opaque 

 white or blue, green or yellow. 



Tima lucullana (see page 314). 

 Tima favilabris, Stiasnv, 1908, Arbeit. Zool. Inst. Univ. Wein, Bd. 17, p. 221, taf. I, fign. 1-5. 



Stiasny finds a medusa at Trieste, Adriatic, in November and March, which he believes 

 to be identical with Tima favilabris of the Atlantic. The larger of his two specimens was 

 found in March. Bell 68 mm. wide, 35 mm. high, 64 long tentacles, about 15 irregularly 

 placed lithocysts each with 5 to 8 concretions. The gonads extend along the entire lengths 

 of the radial-canals. 



Stiasny's medusa appears to me to possess all of the essential characters of T. lucullana. 

 Timaflavilabris of Eschscholtz is indeed imperfectly known, but its numerous short tentacles 

 separate it from Stiasny's medusa. 



jEquorea parva Browne (see page 334). 

 Mquorea parva, Hartlaub, 1909, Zoologische Jahrbiich., Abth. Syst., Bd. 27, p. 459, taf. 21, fign. 21-26. 



Two specimens from Djibuti, east coast of Africa, on May 13, 1904. The largest had 

 a bell 10 mm. wide, with thick gelaMnous wall and shallow bell-cavity. Stomach flat, about 

 half as wide as bell-diameter. 28 spur-shaped, fairly long, simple lips each with a short 

 radial-muscle. 28 radial-canals each with a gonad about half as long as the canal, leaving 



