316 VERRILL, SYNOPSIS OF 



SUBORDER, ZOANTHACEA Verrill, Vol. IV, p. 147. 



Polyps elongated, attached permanently by the base or 

 by stolon-like expansions of the sides ; simple or increas- 

 ing by basal budding. Walls but little muscular, con- 

 tracting by involution of the summit. 



FAMILY, ZOANTHIDJS Dana. 



Zoanthina Elir., Corallenthiere des rothen Meeres, p. 45, 1834. 

 Zoanthince (subfamily) Edwards and Haime, Coralliaires, p. 298, 1857. 

 ZoanthiiuK (pars) Duch. et Mich., Corall. des Antilles, 1860. 

 ZoanthidcK Verrill, Mem. Boston Soc. Nat. Hist., Vol. I, p. 34, 1864. 



Polyps attached by the base, budding from stolons and 

 membranous expansions from the base. Integument sub- 

 coriaceous, or parchment-like, often encrusted with sand. 

 Tentacles marginal, short. 



Several species belonging to this family are in the col- 

 lection, but are not accompanied by notes or drawings. 



ZOANTHUS, sp. 



Polyps clustered, turbinated, .35 of an inch in height, 

 and .06 in diameter, when contracted in alcohol. Sur- 

 face striated. 



Loo Choo Islands. Dr. Win. Stimpson. 



ZOANTHUS, sp. 



Polyps elongated, enlarged at the summit, connected 

 at the bases by slender stolons. Surface sulcated by nu- 

 merous longitudinal lines, and encrusted by a thin layer 

 of fine coral sand. Height 1 inch; diameter .20. 



Loo Choo Islands. Dr. Wm. Stimpson. 



PALYTHOA, sp. 



Polyps united laterally nearly to the summits, forming 

 broad, encrusting masses, half an inch thick. Polyps, in 



