LAOFEA VENUSTA. H 



Thyroscyphns ramosus. 



PL VI. Figs. 5, 6. 



Trophosome. — Hydrocaulus attaining a height of about two inches, much 

 and rather irregularly branched. Hydrothecae alternate, large and deep, 

 oblique at the inner side of the base, supported each on a short peduncle 

 which consists of two oblique rings and which springs from the summit of 

 a short thick process given oflf from the distal end of the internode ; orifice 

 with a narrow border; opercular valves broadly triangular. 



Gonosome not know^n. # 



Dredged south of Sand Key from a depth of 10 fathoms. 



Thyroscyphus ramosus is a large and strong species, rendered striking by 

 its large valvular and bordered hydrothecae. It contrasts markedly with 

 the other operculate Campanularinae, which are all, so far as is known, small 

 and delicate forms. 



Genus CAMPANULARIA Lamarck (in part). 

 Campanularia macroscypha. 

 PI. VIII. Figs. 1, 2. 

 Trophosome. — Peduncles short, rising from a creeping stolon, marked with 

 a few distant annulations, and having a discoid internode just below the 

 hydrotheca. Hydrothecae large, cylindrical from above downwards for the 

 greater part of their length, and then tapering rapidly to the base; orifice 

 cut into about twelve conspicuous, rather blunt teeth. 

 Gonosome not known. 



Dredged o£E Sand Key from a depth of 120 fathoms. 



This is a simple creeping species, and though of humble growth is re- 

 markable for the large size of its hydrothecae. 



Family LAFOEID^ Lamouroux. 



Genus LAFOEA.* 



Lafo'ea venusta. 

 PI. VI Figs. 3, 4. 

 Trophosome. — Hydrophy ton minute, creeping. Hydrothecae borne on 

 moderately long, slightly corrugated peduncles, which spring at short in- 



* It is difficult to find characters for the definition of the genus Lafoea. I regard, however, as an 

 essential character of the genus the absence of anv definite floor to the hydrotheca, a character which 



