140 
Z. HYDROIDA. 
Plumularia. 
214. Stew. Elem. ii. 443. Bose, Vers, iii. 111. Antennularia anten- 
nina, Flem . Brit. Anim. 546. Johnston in Trans. Newc. Soc. ii. 260. 
Var. 1. The stem simple. — Corallina astaci corniculorum semula, Rail, Syn. 
i. 34, no. 10 Corallina affinis, nonramosa, Pluken. Almag. Bot. 119. 
Muscus marinus s. coralloid. non ramosus, erectus, Pluken. Phytog. 
tab. 48, fig. 6 Sertularia antennina, Hogg's Stock. 33 Nemer- 
tesia antennina, Lamour. Cor. Flex. 163, Corall. 71. Antennularia, in- 
divisa, Lam. Anim. s. Vert. ii. 123. 2de edit. ii. 156. Templeton in Mag. 
Nat, Hist. ix. 468 L’Antennulaire simple, Blainv. Actinolog. 486, 
pi. 83, fig. 3. 
Var. 2. The stem branched. — Corallina minima, Ger. Herb. emac. 1572, no. 
4, quoad fig C. ramosa cirris obsita, Raii, Syn. 35, no. 11 Ser- 
tularia seticornis, Hogg's Stock. 33 Nemertesia ramosa, Lamour. 
Cor. Flex. 164. Corall. 71 Antennularia ramosa, Lam. Anim. s. 
Vert. ii. 123. 2de edit. ii. 156. Stark, Elem. ii. 440. Templeton in lib. 
cit. 468 L’A. rameuse, Blainv. Actinolog. 486. 
Hab. On shells and rocks in deep water, frequent. “ In littore 
Dubrensi collegit D. Dare Pharmacopaeus Londinensis,” Day. Sus- 
sex coast, Ellis. From deep water in the Frith of Forth, Jameson . 
Common on the coasts of Durham, Northumberland, and Berwick- 
shire, G. J. Cork harbour, J. V. Thompson. (1.) “ On the 
shore of Dublin Bay ; (2.) Found on the shore of Belfast Lough,” 
Templeton. 
Stems clustered, rooted by numerous implexed tubular fibres, erect, 
straight, attaining a height of 8 inches and upwards, cylindrical, of a 
clear yellowish-horn colour, irregularly branched or undivided, and 
in the latter instances resembling, when dried, the Lobster’s antenna, 
to which they have been appropriately compared. The branches are 
exactly like the primary shoot, and are equally beset with hair-like 
branchlets arranged in numerous whorls. These are often broken 
short in specimens cast on shore after storms, but in recent ones dredg- 
ed from their native sites they are as long as represented in our fi- 
gures. They carry the polype cells, which are distant, small and cam- 
pan u late with entire rims, and divided from each other by a joint. 
The ovarian vesicles are situated in the axils of the whorls, subpedi- 
cellate, ovate, smooth, with a subterminal aperture. 
I can detect no essential difference between the two varieties, and 
I have had, through the kindness of friends, an opportunity of exa- 
mining specimens from various parts of the coast. 
9. Plumularia ;* Lamarck. 
Character. Poly pidom plant-like, rooted, simple or branch- 
* Formed from Plumula, the dimin. of Pluma, a feather — I have, in common 
with most French authors, adopted the generic names of Lamarck in preference 
