L'IMi MKDrS.E OF TIIK WOIJJ.D. 



Laodicea? neptuna Mayer. 



Plate 26, figs. 1-3. 



f.imlirra ntfiluna, MAYER, 1900, Bull.Mus. Comp. Zoo!, at Harvard College, vol. 37, p. 48, plate 10, figs. 50-51. BROWNE, 



1907, Annals an. I Mag. Nat. Hist., ser. 7, vol. 20, p. 469. 



Immature medusa (?). Bell little higher than a hemisphere and 2.5 mm. in diameter. 

 There are 8 short tentacles with large basal bulbs and 8 small, rudimentary tentacle-bulbs. 

 Tentacles thickly covered with nematocysts and usually carried coiled and contracted. A 

 single, large, black ocellus is found at the base of" each tentacle (plate 26, fig. 3). There are 

 numerous small nematocyst-bearing cirri but no sensory-clubs upon the bell-margin between 

 the tentacles. The velum is well developed. There are 4 straight, radial tubes, the upper 

 regions of which, adjacent to the manubrium, are occupied by the gonads. The manubnum 

 reaches slightly beyond the velar opening and the lips are surrounded by 4 prominent clusters 

 of nematocyst-cells. The color of the entoderm of the manubrium, tentacle-bulbs, and circular 

 and radial tubes is pearly-white. The entodermal lamella of the bell is of a delicate shade of 

 green. This medusa was occasionally found at the Tortugas, Florida, during July and 

 August, 1898. It has not been seen since that time. I can not be certain that this medusa 

 is a l.aodicea and share the doubts expressed by Browne, 1907, upon the subject. 



Laodicea? eucope. 



(Irtonemti eitrv[>?, HA ECKEL, 1879, Syst. der Medusen, p. 127. BROWNF, 1907, Annals and Mag. Nat. Hist., vol. 20, ser. 7, p. 477. 



Bell hemispherical, 8 mm. wide. 8 equal tentacles, somewhat longer than the bell- 

 diameter and with thick, globular, basal bulbs sharply set off from the long, delicate shafts 

 of the tentacles. An abaxial ocellus with a subspherical lens on each tentacle-bulb. fio to 80 

 marginal clubs. 30 to 40 spiral cirri as in Laodicea cruclata. 4 radial-canals. Stomach with 

 4 short, slightly-folded lips. 4 ribbon-like, folded gonads extending along the entire lengths 

 of the 4 radial-canals. Color ( ?) Honolulu, Hawaiian Islands. The presence of abaxial 

 ocelli may necessitate the removal of this medusa from the genus Laodicea, 



Laodicea? fertilis. 



Ortorliofiiilon f<-'ii(i\, VON LENDENFELD, 1884, Proc. Linnean Soc. New South Wales, vol. 9, p. 919, plate 42, figs. 14-15. 

 BKOW\F, i 907, Annals and Mag. Nat. Hist., ser. 7, vol. 20, p. 478. 



Rell semi-ovate, 2.5 mm. high, 2 mm. wide. Stomach a 4-sided pyramid, widest in the 

 middle, "octaedral." 4 simple lips. 8 tentacles, 4 radial and 4 interradial; longest tentacles 

 two-thirds as long as bell-height; interradial ones shorter. Tentacle-bulbs elongate, but 

 narrow and conical. There are 8 adradial clubs upon the bell-margin. These are longer 

 than the tentacle-bulbs. The gonads are complexly folded and extend over the entire lengths 

 ot the 4 radial-canals and fuse one with another on the sides of the stomach. Gonads orange- 

 yellow, other parts colorless. Sydney Harbor, New South Wales, Australia, in September. 



A more detailed description is required before we can be certain of the actual affinities 

 of this medusa, which appears to have been described from immature specimens ? 



Laodicea? chapmani Giinther. 



Laoilicrn rhafimani, GiiNTHEK, 1903, Ann. anil Mag. Nat. Hist., ser. 7, vol. 11, p. 425, plate 9, figs. 1-3. North Atlantic, ofl 



tin- Irish coast. 

 I./i'niire (?) chapmani, MAAS, 1905, Craspedoten Medusen der Sibu^n Expedition, Monog. to, p. 25. BROWNF, 1907, Annals and 



Mir. N'at. Hist., ser. 7, vol. 20, p. 469. 



Bell 17 mm. wide, 12 mm. high. 32 tentacles, only 4 of which have ocelli. These 4 are 

 at the bases of the 4 radial-canals. Marginal clubs ( ?) Cirri ( t) 4 fimbriated, protrusive 

 gonads on restricted parts of the 4 radial-canals somewhat nearer to the sides of the stomach 

 than to the bell-margin. A single specimen taken between 1,070 fathoms and the surface off 

 the Irish coast in N. lat. 52 18', W. long. 15 54'. 



The gonads do not touch the sides of the stomach. Is this an abnormal specimen of 

 L. cruciata or does it belong to some genus other than Laodicea? 



