Verrill, JVbtes on JRadiata. 399 



compressed, and has a small, tliin base. It soon gives off from each 

 side, in a somewhat pinnate manner, several main branches, nearly 

 as large as itself. Those nearest the base are usually about a quarter 

 of an inch apart, aud spread at a large angle ; those higher up are 

 more distant and curving outward at the base afterwards bend upward. 

 The branches subdivide in a similar manner, and some of the branch- 

 lets again siibdivide. The smaller branches and branchlcts are of 

 about the same size and all have a tendency to become parallel by 

 bending upward. The terminal branchlets arc from 1 to 5 inches 

 long without subdivisions, but mostly 2 or 3 inches long in ordinary 

 specimens, with a diameter of about "05, but often smaller. The cells 

 are often perfectly flat, but usually form small, slightly prominent 

 verrucoe, with a small oblong opening. They are not crowded and 

 arranged alternately in two rows on each side of the branchlets, but 

 on the large branches they become more crowded and often form 

 four roAVS on each side. The axis is slender, light-wood color at the 

 base, dark brown in the branches, yellowish and setiform in the 

 branchlets. Coenenchyma thin. The largest specimens are about 12 

 inches high and 15 broad, with the trunk and main branches '10 and 

 •12 in diameter. Ordinary specimens are about 4 to 6 inches high and 

 broad. Dwarf specimens occur in which the trunk is only "05 in diam- 

 eter, and the branchlets '03. The specimens in all cases appear to be 

 white ; the colored forms, referred to it formerly, prove to be a dis- 

 tinct species (Eiigorgia Bradley i). In life, "the stem is very light 

 pink, heads deep pink, polyps transparent," — F. H. B. 



The spicula ai'e white, resembling those of L. ramulus, but longer 

 and more acute, with the papillae less crowded. The longer double- 

 spindles are variable in size, some of them being '138""" by •048'°™, 

 •144 by •036, '120 by '048, and '168 by '060; the stouter double-spin- 

 dles •108 by -060, and ^102 by '048 ; some of the small ones are -048 

 by '024, and many are still smaller. 



Panama and Pearl Islands, — F. H. Bradley ; Gulf of Mcoya and 

 Corinto, — J. A. MclSTiel ; San Salvador, — Capt. J. M. Dow. 



This species resembles in form Eiigorgia Bradleyi, from which, by 

 its color and very diffei*ent spicula, it may be readily distinguished. 

 In color it is like the white variety of L. ramulus, but differs in its 

 mode of branching, in its long, slender, rounded branchlets, and less 

 prominent cells. 



Whether the Lophogorgia alba Duch. and Mich, be this species or 

 the white variety of G. ramulus, I am unable to determine with cer- 

 tainty, but have referred it to this mainly on account of the size of 



Trans. Connecticut Acad., Yol. I. 51 July, 1868. 



