Verrill, Notes 07i Hadiata. 427 



Avard at a wide aiiulo, not imbricated, covered with large, stout ^\)m- 

 dles, Avitli sliarj) ends, some of Avliicli foim tlie ])rolonged lower lip 

 and project from tlie npi)er part of the verruca^, in the form of sharp 

 rough spinnles. Tlie cells are small and open inward and upward, in 

 contraction nearly concealed hy the incurved lower lip, filled M'ith 

 small convergent yellow s])icula, from the bases of the tentacles. The 

 Cffnenchyma is thin, covered with large spindles. Color deep reddish 

 brown ; cells yellow inside. In life " deep red, polyps bright yellow," 



Height of largest specimens 6 or 8 inches ; breadth about the same; 

 diameter of the main branches, including verruca^ '30 ; of the branch- 

 lets at origin "25 ; near the ends •3'7 ; length of the longest verrucas 

 on the terminal branchlets '\5 to '18 ; diameter '05 of an inch. 



Dwarf specimens occur only two or three inches high, with the lar- 

 gest branches about *25 in diameter, and the verruca3 "10 of an inch 

 long. These grow in shallow water, in rocky pools, etc. 



The spicula are reddish and yellowish brown, mostly rather large, 

 rough, acute spindles, of which the larger ones are often bent, irregu- 

 lar, lobed, or with one end truncate. The longer spindles, when per- 

 fect, usually have the ends quite acute ; some are moderately stout, 

 others qnite slender, covered on one side with small but very sharp 

 spinules, on other parts with small, crowded, rough, rounded or trun- 

 cate warts. When the spindles are bent the spinules are usually on 

 the concave side. The stouter spindles are quite irregular and varia- 

 ble in size and form, but are usually rather thick, often crooked, and 

 with one or both ends blunt or truncate, and very closely covered 

 with warts and spinules. The medium sized spindles are quite regu- 

 lar, slender, and very acute, warted like the larger ones. The 

 smallest are nearly white, regular, some acute and others blunt, cov- 

 ered with prominent very rough warts, which are not crowded. 



The longer spindles measure 1-95'"'" by ■450'"'", 1-75 by -425, 

 1-75 by -250, 1-02 by -275, 1-52 by '225, 1-50 by -375, 1-45 by -350, 

 1-45 by -275, 1-45 by -175; the stouter ones 2-00 by -750, 1-62 by 

 •750, 1-60 by -575, l-c5 by '450, 1-45 by '450, 1-35 by -500, I'lO by 

 •475, 1-00 by -625, -600 by -250 ; the medium sized spindles 1'35 by 

 •250, 1-27 by -225, 1-15 by -150, 1-00 by '425, -900 by -125 ; the small 

 spicula •eSO by •125, ^350 by -100, 325 by •lOO. 



Panama, in rocky pools at low-water mark, common, — F. 11. Brad- 

 ley, C. F. Davis, J. H. Stembergh ; Pearl Islands,— F. H. Bradley. 



Var. flabellum. 



Branches much more niimerous and crowded, several principal ones 

 starting nearly together close to the base, and giving ofi' numerous 



