A. E. Verrill — Anthozoa and Hydrozoa of the Bermudas. 563 



Protopaljrthoa grandis, sp. nov. 



Plate LXVII. Figure 6. 



A large species with the polyps united into small divergent clus- 

 ters by short stolons, furcate at the base, or sometimes isolated ; 

 walls thickly encrusted with fine sand. Column in expansion usually 

 clavate, obconic, or long trumpet-shaped, with the basal part tapered 

 and rather narrow ; often two to three times as high as broad. 

 Disk broad, cup-shaped or when fully expanded convex or umbrella- 

 shaped, with the borders recurved. Tentacles numerous, about 60 

 to 66, in two alternating rows, all similar, short, obtuse; outside the 

 tentacles is a circle of marginal papillje, nearly as large as the tenta- 

 cles and alternating with the outer row. Sometimes one tentacle 

 (directive), in line with the long axis of the mouth, was larger and 

 lighter colored than the rest. 



Color of column usually pale orange, salmon, or buff, under the 

 coat of white sand ; disk usually rich orange or orange-brown, some- 

 times light orange, buff, or ochre-yellow, the tint often varying in 

 the same cluster, its outer part, near the tentacles, darker than the 

 central, and usually with darker radial lines, sometimes tinged with 

 green; lijDS white or orange; tentacles like disk, but usually a shade 

 paler, often darker at base, but the tentacles may be darker than 

 the disk in pale specimens. 



Height of largest polyps, 30 to 36™™; diameter of expanded disk, 

 12 to 16™™. 



On dead Oculina, off Bailey Bay, 30 to 40 feet ; Harrington 

 Sound, 2 to 6 feet; also in shallow water on the reefs, not common. 



Decidedly larger than either of the species hitherto described from 

 the Atlantic. 



Palythoa Lamx., Polyp, flex., 1816. 

 Corticifera Leseur, Journ. Acad. Sci., Philad., i, p. 178, 1817. 



This genus differs from Protopalythoa only in having the polyps 

 united laterally, to a greater or less extent, by coenenchyma filled 

 with sand and other foreign substances, so as to form continuous 

 coriaceous crusts, often of great extent. 



The mesenteries are microtypical,* as in Zoanthus, and usually 

 not very numerous. 



* McMurrich, evidently by error, states that they are macrotypical (Actio. Bahama 

 Is., p. 62), but he describes them as microtypical on a later page (p. 66). 



