LAOFEA VENUSTA. a 
Thyroscyphus ramosus. 
Pl. VE: Figs. 5, 6: 
Trophosome. — Hydrocaulus attaining a height of about two inches, much 
and rather irregularly branched. Hydrothece 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 off from the-distal end of the internode; orifice 
with a narrow border; opercular valves broadly triangular. 
Gonosome not known. 
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 hydrothece. It contrasts markedly with 
the other operculate Campanularine, which are all, so far as is known, small 
and delicate forms. 
Genus CAMPANULARIA Lamarck (in part). 
Campanularia macroscypha. 
el VES Figs. V2: 
Trophosome. — Peduncles short, rising from a creeping stolon, marked with 
a few distant annulations, and having a discoid internode just below the 
hydrotheca. Hydrothece 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 off 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 hydrothece. 
Fammy LAFOEBIDA® Lamovrovx. 
"Genus LAFOKA.* 
Lafoéa venusta. 
Pl. VI. Figs. 3, 4. 
Trophosome. —Hydrophyton minute, creeping. Hydrothecee borne on 
moderately long, slightly corrugated peduncles, which spring at short in- 
* It is difficult to find characters for the definition of the genus Lafoéa. I regard, however, as an 
essential character of the genus the absence of any definite floor to the hydrotheca, a character which 
