289 



panded base. The Museum specimen is only a fragment, like a 

 Coral or Gorgonia ; but the form of the cell, the bark, and the axis 

 much more resembles that of a Coral or Gorgonia than any genus 

 of Pennatuladce. 



M. Valenciennes forms a genus Gorgonella, thus characterized : — 

 " Sclerobase (axis) calcareous, much divided, forming fine branches," 

 to which he refers G. violacea and G. sarmentosa, Lamk. I have 

 not been able to find any specimens agreeing with these characters. 

 The specimen in the Museum agreeing with Esper's figure of the 

 latter species has a horny axis. 



6. Umbracella. 



Coral flabellate, branched, branches subfurcate, flexuose often ana- 

 stomosing. Axis smooth, polished, base white, coral-like ; upper part 

 rod-like, solid ; branchlet white, flexible. Bark when dry granular, 

 minutely punctate, thin, with a narrow continuous lateral groove. 

 Polype cells in a rather irregular series on each side of the branchlets, 

 rather prominent, roundish, white, with eight or ten radiating 

 grooves from the apex, in two or three irregular interrupted series on 

 each side of the main stem. 



1. Um. UMBRACULUM. 



Gorgonia umbraculum, Solan der, Z. t. 10. 



2. Um. granulata. B.M. 

 Gorgonia granulata, Esper, t. 4. 



Suborder III. Ceratophyta. 



Axis single, continued, horny (not effervescing in muriatic acid), 

 having an expanded base, by which it is attached to some fixed 

 marine body. 



Fam. 1. Antipathid^e. 



Antipathidce, Gray, Syn. B.M. 1842, 135. 



Antipathacea, Dana, Zooph. 5/4. 



Zoantharia cauliculata, Edw. & Haime, Arch. Mus. H. N. v. 1/5. 



Bark fleshy, easily deciduous, soft, simple, only strengthened with 

 large and small scattered (siliceous ?) plates. 



1. Leiopathes. 



Leiopathes, Gray, Syn. B.M. 1842, 135. 



Axis smooth, polished, branched, forked. Bark soft, deciduous, 

 deliquescent, sometimes forming (when dry) smooth, transparent 

 masses at the fork of the branchlets. 



No. CCCXLV. — Proceedings of the Zoological Society. 



