Narrative of Bahama Expedition. 85 



zoids inhabit smaller slit-like pores placed on either side along 

 the edge of the two ridges. The specimens of this form 

 secured by us attain a height of about two inches. 



Two other species of this genus were found which attained 

 a considerable size. Both were profusely branching forms, 

 with the branches in the same plane. One. D. sulcata (?), 

 h;id the edges cut b\- deep grooves, which were continuous 

 and included large pores, and ill-defined nodules scattered 

 rather freely over the broad surfaces of the branches. Color, 

 light buff}'. The other species was characterized bv very 

 shallow, discontinuous grooves along the edges, small pores, 

 comparatively smooth surface, and a white color. 



So far as we discovered, these deep-water H3-drocorallina? 

 did not possess stinging powers at all comparable with their 

 shallow- water relatives, which have an ur.icating effect hardly 

 surpassed by any coelenterates which we encountered, with 

 the exception of certain Siphon ophora. 



The Alcyonaria were no less interesting than the hard 

 corals, and were in a better state of preservation, making 

 their approximate identitication possible. The classification 

 used is the one adopted in the •• Challenger " Report on the 



ouana. 



Alcy 



Two beautiful crimson species of Gorgonia were found, with 

 sub-llabellate system of branches and slightly raised calicles. 

 The Chrvsogoroid.^ were represented h\ species of the 

 genera Das\gorgia and Chrvsogorgia. The former does not 

 have the branches spirally arranged, and the branches are 

 sparse and do not break up into branchlets, as is usual in this 

 genus. On the other hand, the calicles are long and at an 

 acute angle to the branch, and have the spicules arranged as 

 in the genus mentioned. The specimens of Chrxsogorgia are 

 branched in an exceedingly profuse dendritic manner, giving 

 an unusually delicate and pleasing appearance to the colony. 

 The calicles are much smaller than in the preceding species. 



lit is surprising^ how tjrcatly those majiiiilicent Reports dirTer in the convenience 

 with which they maybe used by tlie general zoologist, the Rept)rt on the .//ow""'" 

 being particularly satisfactory in the synopsis of classification in the introduction, 

 which greatly enhances the utility of the work to the non-specialist. 



