Verrill, Notes on Radiata. 389 



more than half way across, before becoming lost in the small, even 

 branchlets. These form small, angular meshes, usually about a tenth 

 of an inch across, but often smaller, ordinarily about as high as broad, 

 but sometimes twice as high ; at the outer edge the branchlets are 

 free for about an eighth of an inch, with expanded tips, and have a 

 diameter of about "05 incli. The cells are small but conspicuous, in 

 the form of small oval openings at the summits of small verructe. 

 They are thickly scattered over the whole surface of the frond, except 

 upon the large branches and base, where they are few and distant. 

 Color deep red mingled Avith bright yellow, or red with yellow cells, 

 the relative amount of red and yellow varying. Height of the largest 

 specimen 12 inches; breadth about as much; width of main branches 

 near the base '32 ; diameter of branchlets -04 or 05 of an inch. 



Spicula deep red and bright yellow; those of the polyps pale am- 

 ber. Most of the spicula ai«e rather short, thick, and blunt, with rel- 

 atively large, crowded warts, and a very narrow median space. The 

 longer spicula are not so blunt as the others, and have smaller and more 

 numerous warts. The longer ones measure •120'""' by -048, "110 by 

 •048, -108 by -342, -102 by -054, "084 by -036 ; the stouter ones '090 by 

 •084, -084 by '048 ; the double-heads -048 by -030, -036 by -033 ; polyp- 

 spicula -060 to -084 long by -012 to -024. The openings of the cells 

 are from -21"^"^ to -35""" in diameter. 



Acapulco, — A. Agassiz ; Cape St. Lucas, — J. Xantus ; La Paz, — J. 

 Pedersen. 



Leptogorgia media Verriii. (Litigorgia media, 1st Ed.). 



Rhipidogorgia media Verrill, Bulletin M. C. Z., p. 33, Jan., 1864. 

 Gorgonia media Verrill, Proc. Bost. Soc. N". H., x, p. 327, 1865. 



Corallum regularly reticulated throughout, with larger meshes, form- 

 ing broad fans, often higher than wide, and frequently lobed and more 

 or less subdivided, strengthened by large midribs. Several principal 

 branches, which are large and compressed, arise from near the base 

 and pass divergently through the greater part of the breadth of the 

 frond. The bi-anchlets are round and small, and nearly all coalescent 

 except the short terminal ones, forming meshes that are mostly nearly 

 square and usually '20 of an inch in diameter, but often not more than 

 •12, and sometimes up to '80 in height, with the width -20. The 

 branchlets are from •Oe to '08 of an inch in diameter. The cells form 

 very small verrucie, with oval opening about -005 in diameter. The 

 largest specimens ai-e about 15 inches high and 12 broad. Color red 

 or brownish, often tinged with yellow, especially on the midribs. 



Spicula very small and blunt, bright red and deep yellow intermin- 



