Report on the Blarine Fauna of S. W. of Ireland. 615 



Hydrozoa. 



The Hydroids are, for the most part, common and widely distributed 

 forms. The following only were obtained; — Hydractinia echinata, 

 Flem., Berehaven; Tnbularia indivisa, Linn, Stations I. and XII.; 

 Clytia johnstoni, Aid. ; Obelia geniculata, Linn. ; 0. dichotoma, 

 Linn. ; and Campannlaria flexuosa, Hincks ; all from Berehaven. C. 

 angnlata, Hincks, Station IV., a comparatively local form ; Halecium 

 halecinum, Linn. ; H. beanii, Johnst. ; Sertularella polyzonias, Linn. ; 

 Sertularia pumila, Linn. ; and S. operculata, Linn. ; all from Bere- 

 haven. Antennularia antennina, Linn., Station VI. and Berehaven ; 

 Aglaophenia pluma, Linn., Berehaven; A. myriophyllum, Linn., 

 Station VI. ; a rather rare and deep water form. 



Several kinds of Hydromeduste were obtained, but not in the abun- 

 dance or variety that was expected. The only interesting species was 

 Laodice cruciata, Foi'sk (Cosmetira pilosella, Forb.), this being the first 

 time it has been recorded from Irish waters. The only Scyphomedusas 

 seen were a mutilated specimen of Chrysaora hysoscella, Linn, in 

 Berehaven, and numerous specimens of the violet variety of Aurelia 

 aurita, Linn., at Station VI., where also the only example of the 

 Siphonophora was met with, which was, however, too imperfect to 

 identify. 



Of the Ctenophora, Pleurobrachia (Cydippe)pileus (?)and Beroe ovata 

 were exceedingly common, Numerous specimens, Mnemia norvegise, 

 Sars. (= Bolina hibernica, Patt.). 



Actliiezoa 

 ■ Malacozoa. 



The following sea-anemones were found to be common in Bantry 

 Bay : — Actinia equina, Linn., var. hepatica ; vars. rubra, umbrina, and 

 prasina were common on Bare Island, as were also the vars. sindonea 

 and rubida (pink), of Actiuoloba dianthus, Ellis. Tealia crassicornis, 

 0. F. Miill., was everywhere distributed, and Anthea cereus was very 

 common all along the Bay, growing especially on Zostera, etc., the 

 flesh-coloured variety of smaragdina being especially abundant. 

 Heliactis bellis, Ellis, is also very common, and is subject to consider- 

 able variation in colour. Careful notes were made of a translucent 

 white sea-anemone from Darsey Sound, which may be a variety of 

 Sagartia pallida, Holdsw. The chief difference between our form and 

 S. pallida consists in the acontia being " emitted from the mouth in 

 some abundance, but not very readily " in the latter, whereas in the 

 former the acontia are emitted freely when irritated through lateral 

 apertures (cinclidcs), a distinction which is of some importance. 



