Cydonium. Z. ASTEROIDA. 191 



I have occasionally met with it. I have not seen the original figure, 

 but the copy of it given by Blainville, Man. d'Actinol. pi. 88, B, 

 fig. 7, does not diminish the strength of my suspicion, which, how- 

 ever, some may deem a very vague guess, when they observe that 

 it has been referred even to a diftereut genus, and forms the Ardhelia 

 rubra of the author just mentioned, Actinolog. p. 524 ; and the Sym- 

 podium 7'ubrum of Ehrenberg. Lam. Anira. s. Vert. 2de edit. ii. 625. 



16. Cydonium,* Fleming. 

 Character. — " A coriaceous skin, internally carneous, with 

 numerous straight ridged spicida, perpendicular to the surface. 

 Polypi with a central opening, and an orifice at the base of each 

 of the eight pinnated tentacula" 



1. C. MuLLERi, ^^ skin yelloivish, ivith numerous stellate pores ; 

 internally broivn." Jameson. 



Alcyonium cydonium, " Mull. Zool. Dan. tab. 81, fig. 3, 4, 5-" Fabric- 

 Faun. Groenl. 448, no. 464. Javieson in Wern. Mem. i. 563. Stew. 



Elem. ii. 432 Lobularia conoidea, Lam. Anim. s. vert. ii. 413 



Cydonium Mullen, Flem. Brit. Anim. 516. Grant in Edin. New Phil. 



Journ. i. 195 La Cydonie de Muller, JBlainv. Actinolog. 525, pi. 92. 



fig. 2. 

 Hab. " Island of Fulah and Unst," Jameson. 

 " Base of adhesion narrow, body massive, surface irregular ; the 

 skin consists of animal matter cementing innumerable round siliceous 

 grains ; the cells leading from the stellate pores are indistinct ; the 

 spicula, which converge towards the centre, are fusiform, grouped in 

 small bundles, and many of them at the skin are tricuspidate. In a 

 dried specimen from Zetland, which I have had an opportunity of ex- 

 amining through the kindness of Professor Jameson, the surface is 

 slightly villous, owing probably to the contraction of the skin, leav- 

 ing the extremities of the fibres free. With the exception of the 

 stellate pores, it agrees with the Alcyonimn primum Dioscoridis of 

 Donati ( Adriat. 56. t. ix. f. 1.) in the villous skin and the simple and 

 tricuspidate spicula." — Fleming. 



In the 2d edit, of Lamarck's Anim. s. Vert. ii. 632, I find it stated 

 that Ehrenberg considers the Alcyonium cydonium of Muller as 

 founded on a young individual of Alcyonium digitatum, of which, in- 

 deed, it has much the appearance ; but the zoophyte which Dr Flem- 

 ing has had in view, seems to be different. 



* Cydonium — a quince, in allusion to the figure of the Zoophyte. 



