534 ZOOPHYTA. ESCHARADjE Hupothoa. 



Gen. LIV. HIPPOTHOA. — Crust adherent, interrupted 

 and reticulated by branching and coalescing chains, formed 

 of lengthened cells, united with each other at the extremi- 

 ties. 



137. H. catenularia.— Cells rounded anteally, tapering to 

 the other extremity, aperture oval. 



Tubipora catenularia, Jameson, Wern. Mem. i. 561 ? — On shells in deep 

 water, not uncommon. 

 This species differs from the Hippothoa divaricata of Lamouroux (Zooph. 82. 

 t. lxxx. f*. xv.), in the superior size and width of the cell at the anterior ex- 

 tremity ; the margin of the mouth is slightly thickened and elevated ; the 

 branches proceed nearly at right angles, issuing from the margin beside the 

 mouth. 



Gen. ALECTO. — Adherent cells, nearly cylindrical, united 



with each other at the extremities, and disposed in forked 



branches. 



1. A. dichotomy. — Filiform, mouth near the anterior extremity of the cells. 

 Lamonr. Zooph. 84. t. lxxxi. f. 12 — Geol. Eng. 214 — In Oolite." 



FLUSTRAME. 



Gen. LV. FARCIMIA. — Ramose, branches cylindrical, joint- 

 ed, with cells diverging from the axis. 



138. F.JiMtilosa. — Dichotomous, joints lengthened, cylindri- 

 cal, with lozen-shaped impressed cells. 



Bugle coralline, Ellis, Coral. 46. t. xxiii.— Tubularia fistulosa, Linn. 



Syst. i. 1302 Cellularia salicornia, Pall. El. 61 — Cellaria farciminoi- 



des, Sol. Ellis, Zooph. 26.— C. salicornia, Lamouroux, Cor. Flex. 126. 



Various parts of the coast, from Devon to Zetland. 



Height from two to three inches, diameter not exceeding the twentieth of 

 an inch ; the structure is tubular and proliferous ; the spaces between the 

 joints calcareous and brittle, the ceils internally are arranged round the axis, 

 sublongitudinally, opening by a small orifice towards the summit of the 

 rhombic impression, Pallas states, as a proof of the rapid growth of this co- 

 ralline, that he has seen specimens an inch and a half in height, growing on 

 the egg of a shark, containing an unmatured foetus. 



