88 ACCOUNT OF BRITISH SPONGES. 



Tubular. 



14). Coronata, A single tube, the summit crown- 

 ed with radiating spines, 



Spongia coronata. Etllis^ Zooph. p. 190. t. 58. f. 8, 9i 

 — Gme/. p. 3819. 



This curious little sponge, originally discovered 

 by Mr Ellis in the harbour of Emsworth, is not 

 uncommon on many parts of the British coast ; I 

 have found it in the most southern extremity, 

 and have been favoured with it from Zetland by 

 Mr Fleming, The specimen figured by Ellis, is 

 very diminutive \ it is usually larger, and one in 

 my cabinet is above an inch in length, but not 

 near so large in proportion as the magnified figure 

 in the Zoophytes, It should be remarked, that the 

 specific character of being " surrounded at top 

 by a crown of spines," is rarely identified ; but 

 the spiculae that cover all other parts, form a lasting 

 character. It is generally of a yellowish colour, 

 sometimes of a shining silvery white ; and this we 

 may conceive is its true colour, could all adven- 

 titious matter be removed. 



Found on fuci and other marine bodies. 



