362 Ver/'ill, Notes on Radiata. 



A very common form, occurring all along the coast north of Cape Frio. It is always 



associated with Hymenogorgia qvsrcifolia, with which it appears to agree in station. 



c. r. H. 



Pleuxaurella anceps? Koii., op. cit, p. 138, Taf xviii, f. 14. 



f Eunicea anceps Duch. and Mich., Corall. des Antilles, p. 25, tab. 3, fig. 1 and 2. 



Plate IV, figures 6, 6'\ 



This form, which may be distinct from the last, although inter- 

 mediate specimens occur, is represented by two examples. These 

 have branches about '3 of an inch in diameter, which are more divided 

 and less fasciculated than in the preceding species. The cells are a 

 little smaller and mostly contracted and linear, often slightly raised. 



The spicula agree in most characters with those of P. dichotoma^ 

 but appear to be a little smaller and sharper and not quite so thickly 

 covered with papillte. The cross-shaped ones are less numerous and 

 smaller, the majority are fusiform and of various sizes, rather acute, 

 and covered with rough papilloe. Abrolhos reefs, with the last. 



Several additional species of polyps were observed by Mr. Hartt. 

 Among them were eight species of Actinidce, at the Island of Sta. 

 Anna ; a Zoanthus with emerald green disk and tentacles ; a spread- 

 ing, brown Palythoa ; an Astrangia, common on dead shells at Rio 

 and Victoria ; a SympylUa at Victoria ; a nodose, slender branched 

 Gorgonicm at Rio and Victoria ; and Menilla. perhaps both R. Dance 

 Verrill and M. violacea Quoy and Gaim., in the harbor of Rio. 



The following species, previously described from Brazil, were not 

 obtained by Mr. Hartt at the Abrolhos Reefs : 



Gorgonia pumicea Val., in Edw. and Haime, Corall., vol. i, p. 160. 

 Phyllogorgia dilitata Edw. and Haime, op. cit., p. 181. 

 Juncella hystrix Val., in Edw. and Haime, op. cit., p. 186. 

 Eunicea Castelnaudi Edw. and Haime, op. cit, p. 148. 



Class, ACALEPHiE. 



Order, HYROIDEA. 

 Millepora nitida Verrill, sp. nov. 



Corallum forming low rounded clumps, four to six inches high, con- 

 sisting of short, rapidly forking, rounded or slightly compressed 

 branches, about '4 to "8 of an inch in diameter, which have remark- 

 ably smooth surfaces, and are obtuse, rounded, or even clavate at the 

 ends. The larger pores are small, very distinct, round, evenly scat- 

 tered over all the surface, at distances of about '06 to "1 of an inch 



