322 VEREILL, SYNOPSIS OF 



SUBFAMILY, ANTHEIN^I Verrill, op. cit. p. 15. 



Family, Antheadce (pars') Gosse, Actin. Brit. p. 148, 1857. 

 Family, Discosomce (pars') Duch. and Mich., Supl. Corall. Ant. p. 27, 

 1864. 



Column smooth, destitute of verrucse and lateral pores 

 (cinclidse). Tentacles usually very long, the inner ones 

 longest, not capable of contracting in length, or but 

 slightly so. 



It seems necessary to restrict this group, if it be re- 

 tained at all, to those genera agreeing essentially with 

 Ammonia Risso (Anthea Johns.), by excluding Aiptasia 

 Gosse, which has a perforated wall and projects acontia, 

 agreeing, therefore, with the Sagartince; and those ver- 

 rucose species like "A. pustulata Dana," referred here by 

 Gosse, but belonging rather with Bunodinaz. Should 

 the marginal tubercles of Comactis prove to be of the 

 same nature as those of Actinia, there would no longer 

 appear to be sufficient reasons for separating the two sub- 

 families, which might be united under the name of Actin- 

 ince. At present the only positive character that can be 

 given for this division is the non-contractility of the disk 

 and tentacles, a character that is found, also, in most of 

 the other groups, and in various degrees of perfection. 



PAE ANTHEA Verrill, gen. nov. ' 



Dysactis Verrill, Eevis. Polyps, East Coast U. S., in Mem. Bost. So- 

 ciety, Vol. I, p. 26, 1864, (non Edw. and Haime). 



Column subcylindrical, usually short, smooth. Tenta- 

 cles not contractile, unequal, the inner ones several times 

 longer than the diameter of the body, outer ones much 

 shorter. Disk usually flat, not contractile. 



Type, P. pallida Verrill, Carolina coast. 



PAEANTHEA MINUTA Verrill. 



Dysactis minuta Verrill, these Proceedings, Vol. 5, p. 50, 1866. 



Plate 1, figure 4. 



Body very small ; column low, subcylindrical, scarcely 



