THE HYDROID ZOOPHYTES. 99 



One colony, about IJ inches in height, attached to the 

 back of a specimen of Hyas coarctatus, and a second colony, 

 about 2J inches in height, were dredged off the south end of 

 the Isle of Man, in August, 1885, from a depth of ten to 

 twenty fathoms. Gonophores are present in both. 



Neither Hincks nor Allman give any very good distinguish- 

 ing characteristics by which E. capiUare can be known from 

 E. ramosum. The colonies of the former species seem to 

 branch more irregularly, and, according to Allman, they 

 develop gonophores between June and September, while in 

 E, ramosum these are produced in April. The Manx speci- 

 mens were obtained in August and have the gonophores well 

 developed : they probably belong to E, cajpillare. 



Family X.— Atractylid^. 



Gai-veia nutans, T. S. Wright. 



Eudendrium (Corythamnium) bacciferum, Allman, " Notes on 

 Hydroid Zoophytes," Atin. N. H., July, 1859. 



This rare Zoophyte was first found by Dr. Strethill 

 Wright on the island of Inch Garvie, in the Firth of Forth, 

 and almost simultaneously by Prof. Allman in the same 

 locality (see Allman, Gymnohlastic Hydroids, p. 294). It 

 has since been found in Shetland by Hincks, and at More- 

 cambe Bay by Allman. It had not been previously found in 

 Liverpool Bay, but last summer, during the expeditions of 

 the Liverpool Marine Biology Committee, it was discovered 

 in several localities, and seems to be fairly abundant novv off 

 the north end of Hilbre Island. It was found at low water on 

 Hilbre Island on May 17th, with well developed gonophores ; 

 at the same locality, on June 13th ; and was dredged in 

 Hilbre Swash on May 9th, and again on June 20th, from 

 depths of ten fathoms. It was also obtained during the 

 cruise of the " Hyaena," on May 25th, off the Great Ormes 



