EUDENDRIUM ANNULATUM. 83 



Hob. On shells &c., generally distributed round the 

 coasts of Great Britain and Ireland. 



3. E. ANNULATUM, Norman. 



; On uhdescribed British Hyclrozo:i, Actinozoa, and Polyzoa," Ann. N. H. 

 for Jan. 1S64, 83, pi. i\. figs. 1-... 



Plate XV. fig. 1. 



ZOOPHYTE shrubby, densely branched, of a bright full horn- 

 colour ; MAIN STEMS very thick and strengthened by a 

 network of anastomosing tubes on their surface ; RA- 

 MULES extremely numerous, short, and delicate, closely 

 and distinctly annulated throughout ; POLYPITES with 

 from 16-20 tentacles ; GONOPHORES (? male) in clusters, 

 oval, and shortly stalked, from 8-20 in a group. 



Height 4 inches. 



THE shoots rise from an iiicrusting mat, which consists of 

 a close network of broad and somewhat flat anastomosing 

 fibres. The dense shrubby habit, the regular annulation, 

 and the curious superficial network are distinctive cha- 

 racters of this fine species. 



We know little of the reproduction; but, as in other 

 Eudendria, the fertile polypite is, ultimately at least, 

 merely rudimentary. 



Hab. " Found in a cave known as * Buness Hall/ which 

 is one of many caverns, all remarkably rich in animal life, 

 which penetrate the cliffs on the eastern side of Burrafirth, 

 the northernmost of the voesof Shetland. It was attached 

 to the perpendicular sides of this cavern, about a foot be- 

 neath the water at the lowest spring tide. Other, but 

 much smaller, specimens were inhabiting a rock-pool just 

 outside the cave. These last examples, though not more 

 than an inch or an inch and a half high, were loaded with 



