327 



[Verxill. 



Gorgonia aurantiaca Verrill, 1. c, p, 33. 



LopTiogorgia aurantiaca Horn. Proc. Phil. Acad. 



This species is much more elegant than the last, forming finely- 

 branched flabelllform tufts, with slender divaricate branchlets, obtuse 

 at the ends. The axis of the smaller branches is amber colored, and 

 transparent in the small branchlets. 



Panama, rare. F. H. Bradley. Also at Mazatlan and Acapulco. 



Gorgonia (Leptogorgia) rigida Verrill, 1. c, p. 32. 



The typical form of this species seems to be rare at Panama, only 

 one specimen occurring in jNIi'. Bradley's collection. There is a form, 

 however, quite common, that may be distinct : 

 Yar. IseviSy nov. 



This forms rather tall, somewhat fan-shaped clumps of long, slender 

 branches, with very small cells, which seldom rise above the surface 

 into verrucEe. The cells are one half smaller than in the typical 

 form, the branches more slender, more regular and smoother. The 

 height is often eight or ten inches, the branchlets .05 to .08 in diame- 

 ter, color white, pink or pui'ple. Panama, common. F. H. Bradley. 



In a recent work, Dr. Kolliker has united Leptogorgia^ Rhipidogor- 

 gia, Lophogorgia, Xiphigorgia, Pterogorgia and some other forms to 

 Gorgonia. So far at least as the first three forms are concerned, this 

 seems to be a useful improvement, which we are fully prepared to 

 adopt, there being no well marked lines of separation between them 

 in the form and structure of the coral or of the spicula. For the 

 present, however, we think it useful to retain these names for sections 

 of the genus. 



Gorgonia (Rhipidogorgia) Agassizii Verrill, 1. c, p. 32. 



Panama, common. F. H. Bradley. Also common at Acapulco, 

 Cape St. Lucas, Socoro Islands. 



G. (Rhipidorgogia) media Verrill, 1. c, p. 33. 

 Panama, rare. F. H. Bradley. Also at Acapulco. 



G. (Rhipidogorgia) stenobrachis Val. 



Panama, common. F. H. Bradley. Also at Acapulco and IMazat- 

 lan. 



Muricea acervata sp. nov. 



Corallum arborescent, with thick, rigid branches, a third of an inch 

 in diameter, and two or three long, rounded or somewhat clavate at 



