156 Z. HYDROIDA. Campanularia. 



52. Hogg's Stock. 34 Clytia syringa, Lamour. Cor. Flex. 203. 



Corall. 89. Campanularia syringa, Lam. Anim. s. Vert. 113. '2de 



edit. ii. 132. Flem. Brit. Anim. 548. Johnston in Trans. Newc. Soc. 

 ii. 256. Blainv. Actinolog. 472. 

 Hub. Parasitical on other corallines and the lesser fuci, less com- 

 mon than the preceding. 



This is only to be distinguished from C. volubilis by the aid of the 

 microscope. The two species frequently grow intermixed, and their 

 habit is the same, but the syringa is easily distinguished by its denser 

 corneous structure, its cylindrical tubular cells, and the shortness of 

 the pedicles which support them. Polypes with 8 filiform equal ten- 

 tacula. — Pallas describes a branched variety from the coast of Corn- 

 wall, which, however, undoubtedly belongs to C. dumosa. His words 

 are — " Nuper ex Oceano Cornubiam alluente, ubi haec Sertularia in 

 testaceis et Zoophytis omnibus abundat, accepi ramescentem eandem, 

 seu vegetantem ; dum tubuli 2)lurimi proprii simul assurgentes effi- 

 ciunt stirpes sponte erectas, stepe sesqui-pollicares, ramumque unum 

 vel alteram exserentes, totas ab imo ad summum calyculis tubulifor- 

 mibus, sine ordine, quaquaversum muricatae/' 



* * Stem composed of many parallel tubes. 

 3. C. VERTiciLLATA, erects branched ; cells on verticillate pe- 

 dicles, campanulate icith a serrulated rim. Dr Brownrigg.* 



Plate XXII. Fig. 3, 4. 

 Horse-tail Coralline with bell-shaped cups, Ellis, Corall. 23, no. 20, pi. 



13, fig. a, A Sertularia verticillata, Z>znw. Syst. 1310. Pall. Elench. 



115. Ellis and Soland. Zooph. 50. Berk. Syn. i. 218. Titrt. Gmel. 

 iv.. 679. Turt. Brit. Faun. 214. Stew. Elem. ii. 444. Base, Vers, 



iii, 112. Hogg's Stock. 34. Clytia verticillata, Lamour. Cor. Flex. 



202. Corall. 88. Campanularia verticillata, Lam. Anim. s. Vert. ii. 



113. 2de edit. ii. 131. Flem. Brit. Anim. 550. Templeton'm Mag. Nat. 



Hist. ix. 466. Stark, Elem. ii. 441.- La Laomedee vertieillee, Blainv. 



Actinolog. 475, pi. 84, fig. 3. 

 Hah. " Near Whitehaven, in Cumberland," Dr Brownrigg. Near 

 Hartlepool, Durham, not very frequent, J. Hogg, Esq. Not uncom- 

 mon on the coast at Scarborough, adhering to shells, &c. Mr Bean. 

 Cullercoats, Northumberland, Mr Joshua Alder. 



* Dr William Browmrigg, born at High Close Hall, Cumberland, March 24, 

 1711 ; graduated M. D- at Leyden in 1737 ; elected F. R. S. in 1742 ; in 1748 

 published his valuable work on the art of making common salt ; received the 

 Copley medal for the year 1765 ; continued to prosecute with zeal his chemical 

 and philosophical experiments, and to eiijoy his literary taste, until the period 

 of his death, which took place at Ormathwaite, January 6, 1800, aged 88 years. 

 For an able biographical account of this learned and excellent physician, see the 

 Annals of Philosophy, Vol. x. p. 321, he. 



