26G CORYNE PUSILLA. 



marked as to enable them to he unhesitatingly received as so many well- defined species. Indeed, 

 though I have enumerated under the genus Coryne several species with the diagnoses proposed for 

 them by their describers, I am well disposed to believe in the absolute validity of only three 

 of these, the Cor^/iie piisilla, the C'ori/m- nurjinuta, and the Cori/)ic ciespes. 



1. CoiiYNE PUSILLA, Gartner. 

 Plate IV, figs. 1—7. 



Coryne pusilla, — Gartner, in Pallas. Spicil. Zool., fasc. x, p. 40, tab. iv, fig. 8. Jolinston, 



Brit. Zoopli., 1847, p. 39, pi. ii. 

 TuBULAiiiA coRYNA, — Gmelui, Lbm., 3834. 

 Coryne glandulosa, — Lamarck, An. s. Vert., tome ii, p. 62. 

 Syncoryne PUSILLA, — Elivenberg, Corallenthiere, 294. 

 Hermia GLANDUi.osA, Tohnston, Brit. Zooph., 1838, p. Ill, woodcut 12. 



TROPHOSOME. — HTDROCArLUS attaining a height of about an inch, much and 

 irregularly branched ; pekisakc distinctly annulated, not sending off a sheath upon the 

 base of the hydranth. HrDR.iNTii with about thirty tentacles. 



GONOSOME. — Spoeosacs globular; developed among tlie tentacles from tlie 

 body of the hydranth. 



Colour. — Hydranths and sporosacs flesh colour, perisarc reddish-brown. 

 Development of Gonosome. — May to Septenilier. 

 Habitat. — Growing on fuci and on rocks between tide marks. 

 Batliymeirical dwtrlhution. — Litoral zone. 



LocaUticfi. — Coast of Cornwall,? Gartner; east and west shores of Scotland, and Orkney 

 Islands, G. J. A. ; Shetland Islands, Rev. A. M. Norman and G. .1. A. ; Dublin Bay, G. J. A. 



The determination of the true Coryne piisiUa of Gartner is by no means an easy task. The 

 figure in the " Spicilegia Zoologica" is rude, and far from being sufficiently exact for undoubted 

 specific identification, and I know of no species which exactly answers to the description. 



It is thus, perhaps, impossible to determine with certainty the species which Giirtncr had 

 Ijefore him, and which, it would appear, he obtained on the coast of Cornwall, when he furnished 

 Pallas with the first description and figure on record of a Coryne. A species, however, which is 

 widely distributed round our coasts, and is in some localities very abundant, would seem to agree 

 as nearly as any other with Gartner's hydroid. It is this species which Johnston, in the first 

 edition of his " British Zoophytes," figures and describes under the name of Hermia (/landdosa, 

 adopting the specific name from Lamarck, who used it for the Coryne pusilla of Gartner. In his 

 second edition Johnston describes and figures the same hydroid, but now restores to it Gartner's 

 name of Coryne pusilla. 



This determination I shall follow. It is the nearest which the data at our command entitles 



