138 



uncommon to find long slender ciliated tendrils protruding in 

 pairs from difTerent parts of its surface. On examination, 

 however, these are found to belong to a minute and beautiful 

 worm,* and which forms its tubes in the crevices or fissures, 

 and sometimes on the surface. It would not be safe however 

 to make the presence or absence of a polype an essential 

 qualification for the animal or vegetable kingdoms. By so 

 doing the Clustering Polype of Ellis and the sponges would 

 be included among vegetables; the former of which and most 

 of the latter are I think undoubtedly anim^il. From all that 

 I have observed of them I am inclined to think they are 

 situated on the vegetable side of the line which may supposed 

 to divide the two kingdoms. 



Though tiiey are given up by Zoologists, yet the Botanist 

 will not receive them, and thus they may be said to hover 

 lielween the two kingdouis. Mr. Harvey lias not included 

 lliem in his manual ot British AlgfP, and Professor Graliaiu, 

 according to Dr. Johnston, says : " Let Zoolo^i^ts keep their 

 cryplogamia, the vegetable kingdom has more than enough.'' 

 As, however, they are few in number, and have been classed 

 among the zoophytes by many systemalisls they are here 

 added as a supplenienl to the foregoing genera. 



In character they are encrusting, or arborescent, calcureons ; 

 aiticulated or masaivo ; the surface in a recent stale covered 

 with minute pores, which disappear in drying : no polgpe. 



JANIA. 

 Generic Character: Arborescent, jointed; the joints cylinf 



drical, dichotomously branched; the branches filiform. 



REDDISH HAIR-LIKE CORALLINE. Jania Rubens. 

 (VAR. A.) Calcareous, jointed, arborescent; lower joints 

 simple, cylindrical, about four times as long as thick, 

 nearly of equal thickness throughout: branches commonly 

 teruiinaling in bifid extremities, sometimes knobular. 



Reddish Hair-like Coralline, Ellis' Coral., p. 50, no. 5, 

 pi. 24, fig. e E. Corallina rubens, Turton's Lin., vol. 4, 

 p. 672. Stewart's Elem., vol. 2, p. 439. Ellis and Solan- 

 der's Zooph., p. 123, no. 28. Jania rubens, Fleming's Brit. 

 An., p. 514. Tempi eton in Mag. Nat. Hist., vol. 9, p. 469. 

 Laniouroux's Cor. Flex., p. 272. Bellamy's Nat. Hist., 

 South Devon, p. 267. Johnston's Brit. Cor., p. 224, pi. 22. 



This delicate coralline is abundantly found on almost all 

 our beaches, of a white colour, from being washed on shore, 

 and alternately being covered with the sea, and again left to 

 the influence of the sun. When living, it is either of a red 



* Leucodore Ciiiatui. 



