286 THE VOYAGE OF H.M.S. CHALLENGER. 



Heterogorgia, Verrill. 



The two described species, Heterogorgia verrucosa, V., and Heterogorgia tortuosa, V., 

 come from the Bay of Panama. 



Astrogorgia, Verrill. 

 Astrogorgia sinensis, Verrill, was found at Hong Kong. 



Bebryce, Phillipi. 



Bebryce mollis, Phillipi, has been found at Naples, Messina, and Syracuse. Carus 

 (Prod. Faunae Medit., p. 60) adds " Distrib. Mare Scoticum ;" can this be so ? 



Eumuricea, Verrill. 



The following species, Eumuricea acervata, V., Eumuricea hisjjida, V., Eumuricea 

 tuhigera, V., and Eumuricea squarrosa, V., have been found at Panama, while Eumuricea 

 horrida (Mobius) was found off the coast of Peru. 



Family V. Plexauri dm. 



The species belonging to the various genera of the family are, without exception, to 

 be found in shallow water, and on this account are but feebly represented in the 

 Challenger collection. The material for determining their geographical distribution is to 

 the present very imperfectly known ; it may suffice to mention that the species have 

 been found in both the Atlantic and Pacific Oceans. Species of Eunicella seem to be 

 found in the Mediterranean, and to extend along the western shores of Africa as far as 

 the Cape of Good Hope ; Verrill records one species, Eunicella tenuis, as from the West 

 Indies, but there would seem to be some doubt as to the locality. Plexauroides praelongo., 

 (Rid.), occurs at Torres Strait. The West Indies and Japan appear to be the habitats of 

 very many of the known species. 



Family VI. Gorgonib^. 



Platycaulos, n. gen. 

 The single species of this genus {Platycaxdos danielsseni) was obtained at Bauda. 



