140 Z. HYDROIDA. Plumularia. 



214. Stew. FAem. u. 443. i?osc, Vers, iii. 1 1 1 . Antennularia anten- 



iiina, Flem. Brit. Anim. 546. Johnston in Trans. Newc. Soc. ii. 260. 

 Var. 1. The stem simple — Corallina astaci corniculorum semula, Raii, Syn. 



i. 34, no. 10. Corallina affinis, nonramosa, Pluhen. Almag. Bot. 119. 



Muscus marinus s. coralloid. non ramosus, erectus, Pluhen. 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 ]ib. 



cit. 468 L'A. rameuse, Blainv. Actinolog. 486. 



Hab. On shells and rocks in deep water, frequent. " In littore 

 Dubrensi colleg-it D. Dare Pharmacopseus Londinensis," Bai/. 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. (I.) " On the 

 shore of Dublin Bay ; (2.) Found on the shore of Belfast Lough," 

 Temple toti. 



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- 

 panulate 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. Polypidum 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 



