236. CATALOGUE OF THE ZOOPHYTES OF’ 
of H. labrosum, and as such had noticed it in my description of 
that species (v. iv., p. 179). It has since been described by Mr. 
Hincks under the above name, in his excellent “ Catalogue of 
the Zoophytes of South Devon and South Cornwall,” and on a 
further examination of additional specimens, I now agree with 
that gentleman in considering it a distinct species. It is very 
minute, and of great delicacy; the polypary being perfectly 
transparent and nearly colourless. North country specimens 
have the stem more strongly ringed and wrinkled than those 
figured by Mr. Hincks from the Devonshire coast—a circum- 
stance that adds much to the elegance of their appearance. 
6. H. riLiroRME, 7. sp. 
Polypary, very slender, flexible, simple, or consisting of a 
single tube throughout; the stem not much branched ; 
branchlets short, alternate, arising from the side of a cell; 
the internodes rather long; cells rather slender, tubular, 
with a slightly everted margin. Length 43 inches. 
This species is distinguished from all those of similar size 
belonging to the same genus, by having the stem simple and 
uncompounded throughout its whole length, as well as by its 
very slender, thread-like form and great flexibility ; most of the 
species of this genus becoming rigid when dry. It has occurred 
to me only once, when I obtained a few specimens together, 
apparently torn from the same base. The reproductive capsules 
were absent, but there can be little doubt of its distinctness from 
any described species. 
9. SERTULARIA, Linneus. 
1*. 8. Gavi, Lamouroun. 
Sertularia Gay, Lamx. Exp. Meth., p. 12, t. lxvi., 
f. 8, 9. Hincks in Ann. Nat. Hist., 8rd ser., v. 
viil., p. 252. 
Sertularia polyzonias, var. 8, Johns. Brit. Zooph., 
DP. MOMs ibaexesntce: 
From the deep-water boats; occasionally. 
Until lately this species has been confounded by British 
