BRITISH ZOOPHYTES. 123 



by a mass of fibres. Calydes cup-shaped. Nemato- 

 phores movable, bitbalamic, distributed along the stem. 

 Gonothecce axillary^ unilateral. — T. H. 



1. A. ANTENNINA, LillTl. Plate IX. fig. 2. 



Sertulai'ia antenuina {Linn., Pall., Esp., Stew.), Nigel- 

 lastrum anteuninum (OJcen), Nemertesia anteunina 

 {Lamx.), Antennularia indivisa {LamJc), A. simplex 

 {De B.). 



Hab. : Generally distributed. Height 8 — 12 in. 



This zoophyte was called by Ellis the ''Lobster^s 

 Horn Coralline or Sea-beard/^ from its appearance 

 when stiupped of its branchlets, which are easily 

 detached. The colour is yellowish-brown, and the 

 stems rise in numbers from a common root-like base. 

 The stems are jointed at very short intervals, each 

 joint bearing a number of short processes, to which the 

 pinnules or branchlets are attached. These branchlets 

 (hair-like in appearance) curve inwards and upwards. 

 They are divided into internodes, which are alternately 

 long and short, the latter not bearing any calycles. 

 The nematophores are numerous, being found above 

 and below each calycle and on the intervening inter- 

 node. 



There is a red variety of this species sometimes 

 found. 



2. A. EAMOSA, Lamarck, 



Sertularia abietina, var./5. (2/^7^?^.), Nemertesia ramosa 

 {Lamx.), Sertularia seticornis {Hogg), Antennularia 

 arborescens (Hass.), A. rameuse {De B.). 



Hab. : Abundant. Height 8 — 10 in. 



This species has been classed by many observers 

 with the preceding, but the differences are striking. 

 A. ramosa is much stouter than its ally, has the joints 



