Dr. Johnston's Catalogue of Zoophytes. 26 1 



Lobster's-hom Coralline, or Sea-beard, Ellis, Corall. 15, t. ix. No. 14, f. a, b ; Phil. Trans. 



xlviii. 630, t. xxii. No. 3. 

 Hab. On shells, &c. in deep water common. 



12. THUIARIA. 



1. T. TTiuia, stem erect, cylindrical, rigid, ziz-zag, knotted, bearing on the upper part a 

 cylindrical tuft of dichotomous, short, equal branches ; cells appressed, biserial, tu- 

 bular, contracted at the orifice. Bottle-brush Coralline. 

 T. Thuia, Flem. Brit. Anim. 545. 



Sertularia thuja, Linn. Soland. Zooph. 41 ; Turt. Linn. iv. 678 ; Turt. Br. Faun. 213 ; 

 Stew. Elem. ii. 442 ; Lamour. Corall. 84. ; Bosc, Vers, iii. 109 ; Hogg's Stockton, 32. 

 Cellaria Thuia, Lam. Hist. Nat. ii. 339 ; Stark, Elem. ii. 439. 

 Planta Marina equiseti facie, Sib. Scot. EI. ii. lib. quart. 55, t. xii. f. 1 ; Fucus equiseti 



facie, Raii, Syn. 50, No. 47. 

 Bottle-brush Coralline, Ellis, Coral. 10, t. v. No. 9, f. b. 

 Hab. On shells from deep water, common. 



This remarkable species is sometimes a foot in height, generally less. The branches are 

 alternate, but so disposed that four complete the whole. The knots on the lower part are 

 the remains of former branches. The stem has no cells, and neither it nor the branches 

 are jointed. The ovarian vesicles are placed in close rows, on the upper side and towards 

 the base of the branches: they are ovate and shortly stalked, produced most abundantly in 

 the winter season. 



13. CELLARIA. 



1. C. scruposa, creeping, branched ; branches plane, dichotomous ; cells biserial, looking 

 one way, sub-alternate, oval, with an obliquely truncate entire aperture. Stony Angu- 

 lar-celled Coralline (tab. nost. xi. fig. 6). 

 C. scruposa, Soland, Zooph. 23 ; Lam. Hist. Nat. ii. 141 ; Bosc, Vers, iii. 132. 

 Sertularia scruposa, Linn. ; Turt. Linn. iv. 685 ; Turt. Br. Faun. 216 ; Stew. Elem. ii. 



448. 

 Crisia scruposa, Lamour. Corall. 60. 

 Cellularia scruposa, Flem. Brit. Anim. 539. 

 Celliferous Coralline, with angular edges to its cells, Ellis in Phil. Trans, xlviii. tab. xiii. 



N.o 7. 

 Creeping stony Coralline, Ellis, Corall. 48. t. xx. No. 4, f. c. 

 Hab. On the roots of Laminaria digitata, and other sea-weeds, common. 

 This frequently covers a space about an inch in diameter, the branches diverging and 

 creeping along the surface, or the entangled roots of sea-weed, to which they adhere by 

 simple, root-like fibres. The branches are rather broad, and of a brownish colour : the 

 ova are orange-coloured, nearly globular, one or two in each cell, for this species seems 

 to produce no ovarian vesicles. 



