Dr. Johnston's Catalogue of Zoophytes. 265 



Hab. On Shells from deep water, frequent. 



About two inches high, often less. Root a small disk ; polypidom narrow at the base 

 with thickened margins, dilating upwards. 



4. F. avicularis, polypidom thin, deeply cut into narrow linear dichotomous segments ; 



cells on one side only, oblong, the aperture armed with long unequal straight spines, 

 and covered with a vesicular pearly lid. Birds-head Sea matt. 

 F. avicularis, Turt. Br. Faun. 210 ; Flem. Br. Anim. 536. 

 F. angustiloba, Lam. Hist. Nat. ii. 158. 

 F. capitata, Hogg's Stockton, 36. 

 Crisia flustroides, Lamour. Corall. 61. 



Corallina cum appendiculis lateralibus avium capitum forma, Ellis, Corall t. xxxviii. fig. 7. 

 Hab. Deep water, not common on this coast. 



A neat species about one inch in height. The spines to the aperture are about four in 

 number. On the sides of the polypidom are appendages exactly like those of the Cellaria 

 avicularia. 



** Polypidom adnate, undivided. 



5. F. pilosa, polypidom encrusting, irregular ; cells rather remote, round, the apertures 



ciliated with conical bristles, one of which is much longer than the others. Hairy 

 Sea-matt (tab- nost. ix. fig. 5). 

 F. pilosa, Soland. Zooph. 13 ; Turt. Lin. iv. 663 ; Turt. Br. Faun. 209 ; Stew. Elem. 

 ii. 436 ; Lam. Hist. Nat. ii. 159 ; Lamour. Corall. 46 ; Bosc, Vers, iii. 140 ; Flem. 

 Br. Anim. 537 ; Hogg's Stockton, 36. 

 Irregular spongy foliaceous Coralline, Ellis, Corall. 73, t. xxxi. 

 Var. the long bristle abortive or destroyed. 



F. dentata, Sola?id. Zooph. 15 ; Turt. Br. Faun. 209 ; Stew. Elem. ii. 436 ; Lam. Hist. 

 Nat. ii. 158 ; Lamour. Corall. 48 ; Bosc, Vers, iii. 142 ; Hogg's Stockton, 36 ; Stark, 

 Elem. ii. 437. ; Ellis, Corall. t. xxix. fig. D. 

 Hab. Parasitical on the smaller sea weeds. 



This is probably the most abundant Zoophyte on these coasts, and readily known by its 

 hairy appearance. The small spines of the apertures, are omitted in the otherwise excel- 

 lent figure of Ellis. 



When it grows on shells the crust is thinner and more calcareous than when on sea weed, 

 and makes a near approach to the genus Berenicea. The surface of the cells is frosted, 

 the margin of the mouth a little thickened ; and the large spine appears to originate from 

 a hollow base like a hair from its bulb, as is tolerably well represented in our figure. 



6. F. membranacea, polypidom a thin expansion with the margin undivided ; cells oblong, 



square, with very short blunt spines at the angles. Chagrin Sea-matt. 

 F. membranacea, Linn. — Soland. Zooph. 18; Turt. Br. Faun. 210 ; Stew. Elem. ii. 437 ; 



Bosc, Vers, iii. 144 ; Hogg's Stockton, 36. 

 F. telacea, Lam. Hist. Nat. ii. 158 ; Stark, Elem. ii. 437. 

 Hab. On the broad frond of Laminaria digitata, common. 



