408 Verrill, JSfotes on Madiata. 



the most common are small but not vei'y slender double-spindles, with 

 few, distant, thorny papillse. 



The longer double-spindles are •132""" by -048, -120 by -048, -108 by 

 •048 ; the stouter ones -120 by -060, -lOS by -060, -108 by ^054, •096 by 

 •054, •096 by ^048, '072 by -054 ; the double-wheels ^054 by •OeO, ^054 

 by •054, -054 by ^048, ^054 by ^042, ^048 by ^054, ^048 by -048. 



Margarita Bay, Lower California, — A. Garret ; La Paz, Gulf of 

 California, — Maj. Wm. Rich. 



"Var. purpurascens Verriii. 



Similar in form to the preceding, with the branches and branchlets, 

 even in large specimens, not more than half as large. Color light 

 purple, spicula similar in form, but usually with the double-wheels 

 smaller and their edges less acute. The colors of the spicula are deep 

 purple, light purple, and white. Height of the largest specimens 2 

 feet. This form may prove to be distinct, but our specimens are too 

 few to satisfactorily determine. It is near Eugorgia fusco-jnirpiirea 

 (? Ehr. sp.) and may be identical with it. The spicula of the latter 

 are well figured by Dr. Kolliker,* and agree very well in form with 

 those of this supposed variety. 



Pearl Islands and Zorritos, — F. H. Bradley ; Coriuto, — J. A. McNiel. 



EugOrgia nobilis Verrill, sp. nov. 



Plate V, figure 13. 



Large, flabelliform, Avith large, divergent, compressed branches, and 

 numerous short, thick, curved branchlets. Several very large flat- 

 tened branches arise close to the base from the broad trunk, and 

 spread divergently in the plane of the frond, giving oif at short dis- 

 tances (usually about half an inch, often less) numerous sub-parallel, 

 undulate branches, which are strongly compressed at their bases. 

 These give rise to numerous secondary branches and branchlets, which 

 arise at distances of from '25 to 1 inch apart, and are short, thick, and 

 strongly curved, scarcely tapering, rarely more than an inch long 

 without dividing. The coenenchyma is thick and persistent. The 

 cells are larger and less crowded than in the preceding species, usually 

 flat, sometimes a little prominent, forming two broad bands, which 

 are separated by a narrow, sterile sulcus on each side, corresponding 

 to a large longitudinal duct. Color brownish yellow, or reddish 

 brown. The largest specimens are 18 inches high and 2 feet broad; 

 diameter of main branches ^35 to ^75 ; of branchlets '12 to •IS. 



Spicula light purple, yellow, and white. Long double-spindles some- 

 what acute, thickly covered with warts. Stouter ones more densely 



* Icones Histiologicae, Taf. xviii, figs. 28 to 31. 



