of South Devon and South Cornwall. 295 



Supplementary. 



Coryne, Gaertner. 



C. vaginata, n. sp.* 



Polypary branched, annulated; branches alternate, giving off 

 polypiferous ramuli. Polypes fusiform, prolonged below into 

 a slender neck, which is invested by a delicate, membranous, 

 cup-like extension of the polypary. Tentacles 15-20, short, 

 bent inwards when at rest ; extremities rose-coloured. Gono- 

 thecse spherical, produced on the lower half of the body, con- 

 taining a single ovisac or sperm-sac. 



Torbay, between tide- marks. 



This well-marked form has hitherto been confounded with 

 the C. ramosa. The Coryne mentioned by Mr. Lister (Phil. 

 Trans, for 1834) must, no doubt, be referred to it. His figure 

 (pi. 10. fig. 3) is an admirable representation of C. vaginata; 

 and he makes special reference in the text to the "small cell" 

 which protects the basal portion of the polype-body. 



The Devonshire Coryne described by Dr. Johnston (2nd edit, 

 p. 42), and represented on pi. 6. figs. 4, 5, I have no hesita- 

 tion in identifying with the present form. He refers it to the 

 C. ramosa of Ehrenberg; but his description — "polype oblong, 

 freer than ordinarily from the tube, and separated by a narrow 

 neck, with from ten to twelve or more short tentacula scattered 

 over the surface " — applies not to that species, but to the C. 

 vaginata. 



The Syncoryna Listerii of Van Beneden (pi. 3. figs. 11, 12) 

 appears to be the C. ramosa. Neither his description nor his 

 figure agrees with Lister's species. 



The Coryne beautifully figured in Gosse's 'Devonshire Coast,' 

 under the name of ramosa, is also evidently the C. vaginata. 



I feel more doubtful about the Hermia glandulosa of Hassall's 

 Irish Catalogue (Annals for 1841, vol. vi. pi. 6. fig. 2) ; but his 

 figure bears a closer resemblance to the present species than to 

 any other with which I am acquainted. 



Dujardin has described a species of Syncoryna, under the 

 name of S. glandulosa (Ann. des Sc. Nat. ser. 3. Zool. vol. iv. 

 p. 257, &c. pis. 14, 15), which presents some striking points of 

 resemblance to C. vaginata. The polypes are represented as 

 fusiform, and " the corneous covering of the stems " is said to 

 " expand into the form of a transparent cup at the base of each 

 head." But, besides other differences, it is propagated by means 

 of medusoids (to which Dujardin has given the name of Calli- 

 chora), and is therefore a distinct form, 



* A figure of this species will be given hereafter. 



