BOWKKI'.ANKIA GRACILLIMA. ~>'2~) 



I 1 \ IUTAT. On rocks near low-water mark, and in shallow 

 water. 



LOCALITIES. Ilfracombe, the Tunnels, and dredged off 

 the Capstone (T. H.). 



BOWERBANKIA GRACILLIMA, Hhicks. 



Plate LXXV. fig. 6. 

 V AI.KEKI.V GRACILLIMA, Hincks, Ann. N. H. Sept 1877, 216. 



Stem creeping, rather stout, and sinuous. Zooecia dis- 

 posed in groups of varying size at intervals, slender, 

 elongate-oval when contracted, flask-shaped when the 

 polypide is extended, rounded off below, of a light horn- 

 colour. 



Polypide with 8 tentacles. 



THIS species is not characterized by any very marked fea- 

 ture, but is very distinct notwithstanding from any form 

 with which I am acquainted. The cells originate on the 

 sides of the creeping stem, but are not regularly biserial ; 

 they are very slender and graceful in form, and are con- 

 siderably larger than those of B. pustulosa and dtrina. 

 The gizzard is very conspicuous. Along the back of each 

 tentacle runs a line of very delicate setae ; and two or three 

 stand out very prominently at the extremity. A very 

 long bristle also projects at the base, and is visible 

 standing out on each side at the bottom of the tentacular 

 bell. 



HABITAT. On Corallina and stones between tide-marks. 



LOCALITIES. Ilfracombe, probably (Leipner): Salcombe, 

 in rock-pools; Torquay, tide-marks (T. H.). 



