THE HYDROID ZOOPHYTES. 103 



This species was found at Hilbre Island on June 13th, 

 1885. Several colonies were also obtained from the Isle of 

 Man, growing on the stalk of a Tuhularia. Some of these 

 specimens have gonothecae. 



A specimen, which was dredged off the Isle of Man in 

 August, 1885, resembles Hincks' figure in most respects, 

 but is a little less zigzag in its growth, though not so 

 straight as 0. dichotoma. Hincks figures three rings above 

 each joint; our specimen has only one. Hincks does not. 

 mention the presence of tendrils in the species, while our 

 specimen shews several. The hydrothecse spring in some 

 cases from the axils, a condition which Hincks mentions in 

 his description of Obelia dichotoma, but not in the case of 

 0. fiahellata. 



Obelia dichotoma, Linnaeus. 



Laomedea dichotoma, var, a, Johust., B. Z. 1 02, pi. xxvi, figs. 1, 2. 



Kecorded by Byerley under the name of Laomedea 

 dichotoma, as growing in small tidal pools. Mersey (Hicks). 



Several small colonies were obtained off the south end of 

 the Isle of Man ; no gonothecae were present. One small 

 colony, also without gonothecae, was found at Penmaenmawr, 

 by Mr. Thompson. One of the specimens showed tendrils 

 like those figured by Hincks for Campanularia angulata. 



A colony found at Hilbre Island on June 13th, is 

 mentioned in the notes taken at the time, as being probably 

 0. dichotoma, and is recorded as having had medusoid gono- 

 phores attached. 



Campanulaiia volubilis, Linnaeus. 



Recorded by Byerley as " Adhering to shells and Fuci 

 in pools on the shores." Mersey (J. S. Hicks). Point of 

 Ayr (A. 0. Walker). 



Several small colonies were dredged ofi" the south end of 



