224 On Lucernaria quadriconiis and related Species. 



Lucernaria quadricornis. 



Breeds in tlie summer months: — Clyde, ova in May and 

 July ; Port Erin, between June and Sept. (Beaumotit) ; 

 Shetland, Feb., unripe. 



Lucernaria campanulata, Lamouroux. 



By tJie courtesy of Prof. Dakin I have been able to 

 examine two specimens taken on the south end of the Jsie of 

 Man at Easter 1920. Tliey agree closely with Haeckel's 

 description, except that some of the arms have more than 40 

 tentacles (46-48). 



This is the first Manx record of this species, although it is 

 recorded from the east of Ireland. 



Breeding : — Leitj), ripe in April {Dr. Johnston^ ; Scar- 

 borough, ripe in May, spent in Sept., young July and August 

 {Dr. Irving^ ; English Channel, summer (Ilornell and 

 Hurst). 



Haliclystus oetoi-adiatus, Clark (following Beaumont, 1900, 

 and regarding H. auricula and H.octoradiatusm forming 

 "a series belonging to one species"). 



Scarborough, ripe in July, young in July, August, and 

 September (I) r. Irving) ; Valencia, ripe in May {Beaumont) ; 

 English Channel, ripe in summer, half-grown in June 

 {Hornell and Hurst) ; ripe, March and April, 1919, at Ply- 

 mouth (M. B. A. record in litt.) ; Welsh coast, half-grown 

 and ripe in August {II. E.). This indicates two generations 

 in the year, the second mature at four or five months old. 



DejMstruin cyathiforme^ Gosse. 



Clyde, ripe, April to August ; very young, July to Sept. 

 Port Erin, summer {Beaumont). 



References. 



1847. Johnston, G. ' A History of British Zoophytes.' 



1878. Clark, H. J. " Lucemariae," Mouograph Siuithson. Contrib. 



1880. Haeckel. K. ' Das System der Meduseu.' 



1892. Antipa, Gr. Z. Jahrb. Abth. S.vst. 6 Bd. 



1893. Hornell, J. ' Natural Science,' vol. iii. 

 189.3. Hurst, C. H. ' Natiu-al Science,' a'oI. iii. 



1894. Beaumont, W. I. Trans. Liverpool Biol. Soc. vol. vii pp. 25.3- 



26o (reprinted in L. M. B. C. Keps. vol. iv.). 



1895. Beaumont, W. I. * Fauna of Liverpool Bay.' 



1895. Browne, E. T. Q. J. M. S. vol. xxxviii. pp'. 1-8, pi. i. 

 r.)00. Beaumont, W. I. Proc. Roy. Irish Acad. (3j vol. v. 

 1913. Irving, J. ' The Naturalist.' 



