AGLANTHA ROSEA, Forbes. 



Aglantha rosea, Browne, Zool. Soc. Lond. Proc, 1897, p. 833, 

 pi. XLIX., figs. 1, la, 16. 



Circe rosea, Forbes, Monogr. of the Brit. Naked-eyed Medusae 

 (Ray. Soc. 1848), p. 34, pi. I. 



Aglantha digitalis, Hartlaub, 1894. 



Medusa digitate, Midler, 1766. 



Locality. — All Stations in October, 1912, especially Station 

 III. 



Geographical Distribution. — Heligoland (Hartlaub), Shet- 

 land Isles (Forbes), St. Andrews (Mcintosh and Crawford), Valencia 

 Harbour (E. T. Browne). 



Large numbers of the Leptomedusa described and figured by 

 Forbes as Circe rosea and by Browne as Aglantha rosea were taken 

 in the plankton catches for October. The characteristic mitre- 

 shaped umbrella measured 3*5 mm. in height and 2 mm. diameter ; 

 the gonads just appearing as bulbous swellings at the summit of 

 the eight radial canals ; the peduncle rather short, extending not 

 more than half the length of the umbrella, and distinctly constricted 

 at the point of junction with the stomach. No tentacles and no 

 marginal vesicles could be seen. Velum narrow, with a plain 

 margin. 



Note. — Mr. P. Kramp found Gonothyrea gracilis on the rocks at Culler- 

 coats, and 6 miles E. of Longstone (40 fs.) ; Gonothyrea hyalina, 6 miles E. 

 of Longstone; Campanulina repens, 6 miles E. of Longstone in June, 1913. 



