136 SAGARTIAD.E. 



Epidermis. Pale buff, studded with dirty foreign matters. 



Disk. Dull buff, marked with a white star, which is formed by a forked 

 line proceeding from the front of each primary tentacle towards the 

 mouth. Two broad white gonidial radii. 



Tentacles. Dark brown, pellucid, crossed by three narrow remote rings 

 of white. Where the foot of the tentacle unites with the disk, its radius 

 has a white patch, succeeded by two parallel, longitudinal, black dashes. 



Mouth. Rich buff. 



Size. 



Diameter of column one-eighth of an inch ; height one-sixth ; expanse 

 of flower one-sixth. 



Locality. 



Overhanging rocks and sides of caverns near low-water mark, around 

 Torquay. 



The large dark overhung pool at Petit Tor, which I have 

 more than once described, is a fertile nursery of marine life. 

 Though situated not much lower than half-tide level, yet, 

 from the volume of water which it contains, the constancy 

 of its fulness, the aspect, excluding the sun's rays, and the 

 inclination of the rocks preventing evaporation, the rough 

 worm-eaten surface, both below and above the brim, is 

 always wet, always dark, and always crowded with Algse, 

 Sponges, Zoophytes, Worms, and Mollusks. This pro- 

 fusion of riches is not always, however, easily available ; 

 for though it stands in tantalising proximity to the eye of 

 the naturalist, it is quite beyond the reach of his hands, 

 unless he choose to wade into the pool and work in the 

 water breast-high. 



On the 29th of June of the present year I essayed in 

 this manner to rifle the promising treasury ; and the result 

 by no means disappointed my expectations, though, from 

 several circumstances, it was difficult to work with hammer 

 and chisel. Among other things I obtained there this 

 new form. 



