260 



THE ZOOLOGIST. 



TWO UNRECORDED ' CHALLENGER ' HYDROIDS from 

 the BERMUDAS, with a NOTE on the SYNONYMY 

 of CAMPANULARIA INSIGNIS. 



By James Ritchie, M.A., B.Sc, Natural History Department, 



The Royal Scottish Museum. 



In the course of an examination — due to the kindness of 

 Mr. R. Kirkpatrick, of the British Museum — of the type speci- 

 mens of Canipanularia insignis, Allman, collected by the * Chal- 

 lenger,' two epizoic Hydroids were observed creeping upon the 

 larger colonies. These must have been overlooked by Allman, 

 for they are not mentioned in his account of the ' Challenger ! 

 Hydroid collection ; and since they extend the geographical 

 ranges of their species considerably, and are new to the fauna 

 of the Bermudas, it seems worth placing their occurrence on 

 record. 



Lafoea venusta, Allman, 1877. 



A very few of the hydrothecse of this species are scattered 

 over the stems of C. insignis, but no gonosome occurred in con- 

 nection with the specimens examined. 



It is a striking fact, to which Dr. Jaderholm* has already 

 drawn attention, that of the recorded occurrences of L. venusta, 

 on each occasion the colonies were climbing over the stems and 

 branches of Obelia (Lytoscyphus) marginata, Allman, and of it 

 alone. This is true again of the ' Challenger' specimen, for, as 

 stated below, C. insignis, Allman, 1888, is a synonym of 0. mar- 

 ginata, Allman, 1877. 



L. venusta appears to be confined to the tropical and sub- 

 tropical portions of the western board of the North Atlantic 

 Ocean. It has been recorded from Logger-Head Key, nine 

 fathoms (Allman, 1877) ; from ten miles north of Zoblos Island 

 (Clarke, 1879) ; from Anguilla, Antilles, one hundred to one 

 hundred and fifty fathoms (Jaderholm, 1903) ; and the present 



* Jaderholm, E., ' Arkiv forZool., utg. afKgl. Svenska Vetenskapsakad.' 

 1903, Bd. i. p. 274. 



