CLASSIFICATION OF ACTINIARIA 531 
at or at and above the scapo-capitular junction. There is little 
or no sphincter, and only six pairs of mesenteries are perfect. 
For these the name Aliciidae should be kept, and for these only. 
(b) The other genera are provided, usually, with numerous 
perfect mesenteries, have various arrangements of vesicles, may 
be less delicate, and have sometimes circumscribed sphincters. 
Some of them have mesogloeal longitudinal musculature in 
the tentacles. This collection has to be covered by the name 
Phyllactidae, and at that it had better be left for the moment. 
A fuller discussion of the family will fit better into Part IIT, 
where the generic definitions will be available for reference. 
§L. The Actiniidae and Vesicled Forms 
together. 
If the old Actiniidae and Bunodidae and _ Boloceridae 
(re-sorted into the new Actiniidae and Condylanthidae and 
Myonanthidae) and the Aliciidae and Phyllactidae be taken 
together, a mass of forms is presented exactly comparable 
to the set classified in Part I. It is worth while seeing whether 
they will work into a companion table like that on p. 481 in 
Part I. It is unfortunately necessary here to leave out cinclides, 
as there are not enough data about them. And of course 
absence of acontia and mesogloeal sphincter go right through. 
No Vesicles. Vesicles present. 
Mesenteries divided into | Condylanthidae. 
macro- and microcnemes. | Condylanthus. No known representatives. 
Number of macrocnemes six 
pairs. 7 
Mesenteries Not divided | Myonanthidae. Aliciidae. | 
into macro- and micro- | Myonanthus. Alicia. 
cenemes. Number of perfect | Macrodactyla. Phyllodiscus. 
mesenteries six pairs. Boloceroides. | 
Nevadne. 7 8 | 
Mesenteries Not divided | Actiniidae. Phyllactidae. 
into macro- and micro- Actinia, Bolocera. Phyllactis. | Lebrunia. 
cnemes. Numerous perfect | Anemonia. Leipsiceras. Phymactis. Thaumactis, 
mesenteries, or at least more | Gyrostoma. Ixalactis. Cradactis. | Bunodeopsis 
than six pairs in normal | Condylactis. Pseudophellia. Cystiactis. 
individuals. Bunodactis. Boloceropsis. 
| Tealia. Glyphostylum. 
Kpiactis. Parantheopsis. 
| Tsotealia. Dofleinia. 6 6 
In this table the number in the corner of each square is the number of characters which the 
members of the family in that square have in common. 
