416 



MEDUSAE OF THE WORLD. 



Liriope mucronata is the common Liriope of the Mediterranean, being abundant through- 

 out the year at Naples. It is usually colorless. The peduncle flares widely at its base, but is 

 very narrow and only slightly tapering in the greater part of its length. The elongate, heart- 

 shaped gonads are slightly narrower than the spaces between them. The measurements 



Fig. 268.— Liriope hyperbolica, after Maas, in Ergeb. Plankton Expedition. 



Fig. 269. — Liriope rosacea, after Eschscholtz. 



Fig. 270.— Liriope "compacia," after Maas, in Ergeb. Plankton Exped. =L. rosacea. 



(in millimeters) of a mature medusa from Naples are as follows: Bell, 9.6 wide, 5.5 high; 

 peduncle, 10.2 long; stomach, 2.5 long; gonads, 3 long, 2.5 wide; spaces between gonads, 4. 

 There were only 4 interradial centripetal vessels. 



Liriope hyperbolica Maas. 



( ?) Liriope lenuiroslris, Agassiz, L., 1862, Cont. Nat. Hist. U. S., vol. 4, p. -565. 



Non Glossocodon lenuiroslris, Fewkes, 1884, Mem. Mus. Comp. Zool. at Harvard College, vol. II, No. 3, plate 5, figs. 4-7 — 



Agassiz, A., 1888, Bull. Mus. Comp. Zool. at Harvard College, vol. 14, p. 186, figs. 94, 96.— Mayer, 1900, Bull. Mus. 



Comp. Zool. at Harvard College, vol. 37, p. 65, plate 24, figs. 75-7S. 

 Liriope hyperbolica, Maas, 1893, Ergeb. der Plankton Exped., Bd. 2, K.c, p. 38, taf. 2, fig. 4. 



Agassiz, 1862, gives a very brief and vague description of a medusa from the Florida 

 Reef, merely stating that its peduncle is longer than that of any other species of the genus. 

 It will never be possible to determine the identity of Agassiz's species, but it bears a close 

 resemblance to Liriope hyperbolica Maas. For description see the synoptic table ot the species 

 of Liriope. 



