260 Dr. Johnston* s'Catalogue of Zoophytes. 



A very common and very elegant species, generally about six inches in height. There 

 are no polype-cells on the spiral stem, but they occur on the branches as well as on the 

 pinnae, and are arranged in two rows pointing alternately to opposite sides. There is a fine 

 figure of it in the centre of the curious frontispiece to Ellis's immortal Essay on English 

 Corallines. 



2. P. pinnata, stem simple, erect, plume like, pinnate ; pinnae bifarious, slightly arched, al- 

 ternate ; cells unilateral, uniserial, rather distant, one on each joint, campanulate, 

 leaning, the mouth wide and entire. Jointed Sea-bristle Coralline. 



P. pinnata, Lam. Hist. Nat. ii. 127. 



P. setacea, Lam. Hist. Nat. ii. 129 ; Flem. Br. Anim. 547 ; Stark, Elem. ii. 440. 



Sertularia pinnata, Linn. ; Soland. Zooph. 47 ; Turt. Lin. iv. 683 ; Turt. Br. Faun. 215. 



Sertularia setacea, Turt. Br. Faun. 216; Stew. Elem. ii. 446; Bosc, Vers, iii. 119; 

 Hoggs Stockton, 33. 



Aglaophenia pinnata, Lamour. Corall. 76. 



Sea-bristles, Ellis, Corall. 19, t. xi. No. 16, f. a, A ; t. xxxviii. f. 4. 



Hab. On shells from deep water, not common. 



Height one inch and a half, very delicate, white, and pretty. The cells are quite trans- 

 parent, so that the polype is often detected within them. I have a specimen which is ra- 

 ther bushy, and very irregularly branched, the ultimate branchlets only presenting the pin- 

 nate character. The ovarian vesicles are egg-shaped, placed in the axils of the branchlets, 

 either singly or in small clusters. 



In Ellis's figure t. xii. f. a, the branches are bent in the wrong direction, a trivial error 

 which is corrected in the figure in tab. 38, f. 4 ; for I agree with Dr. Fleming that these 

 two figures represent the same polypidom, though Lamarck and others have made two spe- 

 cies of them. 



11. ANTENNULARIA. 



1. A. antennina, stem erect, cylindrical, simple or irregularly branched ; branches few, 

 elongate, erecto-patent, like the stem, all thickly beset with hair-like branchlets in 

 whorls ; branchlets jointed, celliferous ; cells distant, small, alternate, unilateral, some- 

 what campanulate, with entire apertures. Lobster' s- horn Coralline.. 



A. antennina, Flem. Br. Anim. 546. 



Sertularia antennina, Linn.; Soland. Zooph. 45; Turt. Lin. iv. 679 ; Turt. Br. Faun. 

 214 ; Steiv. Elem. ii. 443 ; Bosc, Vers, iii. 111. 



Nemertesia Antennina, Lamour. Corall. 71. 



Var. 1, with the stem simple, and the whorled ciliae very short; Antennularia indivisa, 

 Lam. Hist. Nat. ii. 123 ; Sertularia antennina, Hogg's Stockton, 33 ; Corallina astaci 

 corniculorum aemula, Rail, Syn. 34, No. 10, 



Var. 2, with the stem-branched, and the whorled ciliae longer; A. ramosa, Lam. Hist. 

 Nat. ii. 123 ; Stark Elem. ii. 440 ; Sertularia seticornis, Hogg's Stockton, 33 : Corallina 

 ramosa cirris obsita, Rati, Syn. 35, No. 11. 



