360 Verrill, Notes on Radiata. 



more before curving upward ; branches and branchlets of nearly the 

 same size ; the terminal and some of the lateral branches often long, 

 slender, and undivided, somewhat compressed or quadrangular ; the 

 cells ai-ranged along the edges in a single series on the smaller 

 branches, but in two alternating series on most of them. Cells oval, 

 rather large, mostly prominent, forming slight verrucse. Sides of the 

 branches mostly smooth, sometimes with a slight groove. Height 6 

 to 8 inches; diameter of branches, -08 to -10. Color various, lemon- 

 yellow, reddish purple, or orange. The cells are often yellow on the 

 purple specimens. 



Abrolhos Reefs, Brazil, — C. F, Hartt. 



The size of the branches varies somewhat in different specimens, as 

 well as the number of the cells and distance between them ; the cells 

 are usually crowded along the sides of the larger branches. 



In the non-pinnate mode of branching, slenderness of the few 

 branches, and prominence of the cells, this species is quite peculiar. 

 In size and form of the branches, it somewhat resembles P. bipinyiata 

 Verrill,* from Cumana ; but has an entirely different mode of growth. 

 The latter has, also, much smaller cells. 



Spicula light purple, lemon-yellow, and yellowish white, having the 

 same forms and variations as those of tlie preceding species, which 

 they closely resemble, except in being about one-third smaller. The 

 fusiform spicula are not quite so acute. The crescent-shaped ones are 

 thicker, and often as long as the others, or even longer, and have the 

 convex side a little roughened and more strongly rounded than in H. 

 quercifolia. The slender spicula are more numerous and relatively 

 larger. 



Grows abundantly in little tufts on the edges of the reefs of the Abrolhos region 

 below low-tide, with Hymenogorgia quercifolia. When alive, the colors are much deeper 

 and clearer than in the dried specimens. Some of the branches are of a bright ame- 

 thystine tint. It is occasionally found in some of the larger tide-pools on the reefs. — 

 0. F. H. 



Eunicea humiliS Edw. and Haime, loc. cit p., 149, pi. ]3^ fig. 1. 

 Gorgonia citrina Lamarck, (non Esper). 



Plate IV, figures 4, 4% 4^ 



This is a common form at the Abrolhos Reefs, and it varies consider- 

 ably in the size and form of the branches. It usually forms low, 

 densely branched clumps, with short, round, often clavate, and some- 

 times crooked branches. Occasionally the branches are longer and 

 more slender, or even less than half as thick, and tapering at the ends, 



* Bulletin of the Museum of Comparative Zoology, p. 31, 1864. 



