THAUMANTIAS IXCONSPICUA. 



179 



destitute of lithocysts. Forbes has adopted it, and made 

 it include a number of forms, generically distinct, of which 

 some are referable to Obelia and Clytia. Gegenbaur has 

 properly retained the name for the section that agrees Avith 

 the type species in not having lithocysts. 



Only the reproductive phase was known until Dr. Wright 

 succeeded in rearing from the egg the polypites of T. in- 

 conspicua, and thus determining the position of the genus. 



I see no reason for withdrawing Thaumantias from the 

 family of the Campanulariidfe. 



T. INCONSPICUA, Forbes. 



Monograph of the Erit. Naked-eyed Medusae, 52, pi. viii. fig. 3; T. S. 

 Wright, Journ. of Micr. Science (N. S.), ii. 221 & 308. 



Woodcut, fig. 20. 



STEM simple, ringed at the base and immediately below the 

 calycle, or sometimes through- 

 out; HYDROTHEC.E with from Fig. 20. 

 seven to nine deuticulatioiis on 

 the margin ; GONOTHEC.E un- 

 known. 



GONOZOOID. UMBRELLA smooth 

 and colourless, measuring 

 about |- inch across ; MANU- 

 BRIUM narrow, quadrangular, 

 and of a yellow colour, with 

 lanceolate lips; MARGINAL TEN- 

 TACLES increasing in number with age (16-40), springing 

 from small pale-yellow bulbs, with a faint tawny spot ; 

 SPOROSACS long and linear, and of a faint lilac or greenish 

 hue, with a central fulvous line. 



DR. WRIGHT describes the trophosome as closely resembling 

 that of Campanularia raridentata (Alder) . The annulation 



x 1 



