452 Havpon—The Actiniaria of Torres Straits. 
the genus Cereus (i. ¢. p. 232) is mistaken, as also is Hertwig’s (Chall. Rept. 1., 
1882, p. 76). Gosse’s proposed name Scyphia similarly disappears (Act. Brit. 
1860, p. 123). For further synonymy, see Andres, pp. 137, 188. 
C. pedunculatus (Penn.) [= Sagartia bellis (Ell. and Sol.) auct.]; C. Pawmotensis 
(Dana); C. Fuegiensis, Verr. 
NEMACTIS, M. Edw. 
‘Margin of the disk, outside of the bases of the tentacles, surrounded by a 
single circle of bright coloured, rounded tubercles. Acontia long and slender, 
protruded from the mouth, and perhaps from lateral pores.” 
I have quoted Verrill’s diagnosis of this genus (Trans. Connect. Acad. 1. 1869, 
p. 487). The most important character appears to be the presence of acrorhagi. 
M. Edwards’ (1857, p. 282) definition is: ‘‘ Pores situés prés du bord du disque ; 
des tubercules calicinaux.” Verrill places under this genus the following species. 
NV. primula (Drayt. in Dana); WV. Draytonia, M. Edw. ; WV. (?) Chilensis (Less. ). 
Sub-Family.—Puetiun#, Verrill. 
Sagartiide with usually an elongated column, the capitular portion of which is 
generally delicate and extensile; body-wall provided with a cuticle, but without 
any solid or hollow processes, such as tubercles, vesicles, or suckers ; no cinclides. 
Tentacles simple, neither very numerous nor very long. Only six pairs of perfect 
mesenteries which alone are fertile. The remaining mesenteries are usually feebly 
developed. ‘The retractor muscles are very strongly developed on the primary 
mesenteries. Acontia usually feebly developed, and emitted only through the 
mouth. Strong mesoglceal sphincter muscle. 
I have recently* stated that I consider the presence of gonads on the six pairs 
of primary mesenteries in Phellia, and their absence in the Chondractiniinz to be 
of sufficient importance to place that genus in a distinct sub-family for which 
Verrill’s (1868) name ‘ Phellinz” may appropriately be retained. Kwietniewski 
considers the Chondractiniine as a synonym of the Phelliinze, which he defines 
as :—“ Sagartians with a cuticular covering to the body-wall.” This definition is 
not very explicit, and ignores the internal anatomy. 
Octophellia, Andres (1884), has not yet been studied anatomically, nor can 
any other genus than Phellia be relegated with certainty to this sub-family. 
Simon’s Phelliactis belongs to Chondractiniine. 
* « Phellia Sollasi a new species of Actiniarian from Oceania.” Proc. Roy. Dubl. Soc. (N. 8.), vu, 
1898, p. 701. 
