268 T. A. STEPHENSON 



Gonads may appear from cycle 1 onwards. Siphonoglyphe.s variable in 

 number, there may be several — also directives ; latter may be absent. 

 Species : 



G. hertwigi, Kwiet., 1898, p. 424, is the genotype. (.Sec Haddon, 

 1898, p. 420.) 



G. ramsayi, H. and ,S., 1893, p. 124 ; Haddoii, 1898, p. 420. 



G. kwoiam, H. and «., 1893, p. 125; Haddon, 1898, p. 422. 



G. cinerea, Cont., 1844, p. 183. (See Pax, 1907, p. 36.) 



G. tristis, Carlgr., 1900, p. 36. 



G. dubia, Carlgr., 1900, p. 38. 



G . S t u h 1 m a n n i , Carlgr., 1900, p. 39. 



G. Sancti-thomae. Pax, 1910, p. 177. 



G. incertuni, McM., 1904, p. 230. 



G. selkirkii, McM., 1904, p. 227. 



G. dysancritum, Pax, 1907, p. 48; 1909. 



G. haddoni, Lager, 1911, p. 229. 



G. sulcatum. Lager, 1911, p. 230. 

 Other species which may be referred with a query to the genus are 

 G. tulearense. Pax, 1909, p. 404; G. inequale, McM., 1893, 

 p. 149; G. adhaerens, H. and E., 1832, p. 258 (Pax, 1907, 

 p. 51); G. dichogama. Kirk and Stuckey, 1909, p. 384; 

 G. olivacea,Hutton, 1878 (Stuckey, 1909, p. 381); andG. ins ess a, 

 Gravier, 1918, p, 3. 



The above list iDcludes forms which have been erroneously 

 placed under Anemonia, and had to be transferred. The 

 two genera have been a good deal confused, and especially 

 when dealing with preserved material it is difficult to be certain 

 about them. I have included Par anemonia as repre- 

 sented by P. cinerea in this genus, because it seems to me 

 to be simply a Gyrostoma without directives, and not 

 worthy of a distinct genus, G. glaucum, Annan., is no 

 Gyrostoma, and needs a new genus (see p. 263). 



CoNDYLACTis, D. and M., 1866. 



Cereactis, Andres, 1880. 



? Ilyanthopsis as used by Hertwig for I. longifilis 

 (1888, p. 13). 



Actiniidae which sometimes reach a large size (C. passiflora 

 may be a foot across). Body wth verrucae in the upper part, which msij 

 be well developed, or weak, or practically or even entirely absent ; 

 sometimes they are arranged in vertical rows ; fragments may adhere 



