1904 - 5 .] Report on Medusae found in Firth of Clyde. 755 
from Heligoland, but after his visit to Millport in 1902 he has 
stated (1904) that it is identical with Bougainvillia britannica of 
Forbes. Soon after Hartlaub described Bougainvillia bella I 
recognised that it was identical with Allman’s figure of Bougain- 
villia britannica , but was doubtful about its being identical with 
Bougainvillia britannica , Forbes (1848). Forbes, in his original 
description (1841), states that the ocelli are black, but in his 
monograph (1848) he states that they are red. 
At Port Erin in 1893 and 1894 I found some young Margelis 
with red ocelli, and also some larger adult specimens with black 
ocelli. These specimens I described (1895) under the name of 
Margelis britannica (Forbes). After Hartlaub published his 
revision of the Bougainvillidse (1897), I revised my manuscripts 
on this genus and isolated the medusae with red ocelli under the 
name of Margelis britannica , Forbes (1848), and called the others 
Margelis bella. I have never again met with any specimens of a 
Margelis with red ocelli, and now think that the red colour may 
be reasonably regarded as a variation from the normal black. 
Margellium octopunctatum (Sars). (Tables I. 3 ; II. 2.) 
Lizzia odopunctata , Forbes, 1848, p. 64, pi. xii. 
Margellium octopunctatum , Browne, 1896, p. 479. 
In 1901, it was taken in April, May and July. It was generally 
very scarce, except on 8th May, when ten specimens were seen. 
In 1902, it occurred in the nets from 19th February to 23rd 
July, but was absent during June. It was abundant during the 
first half of May. Specimens taken up to the end of April had 
medusa-buds upon the stomach. In May gonads were develop- 
ing round the stomach. In July either gonads or medusa-buds 
were present on the stomach, so that there was a mixture of adults 
and intermediate stages. 
Podocoryne carnea, Sars. (Tables I. 23; II. 4.) 
Podocoryne carnea , Hincks, 1868, p. 20, pi. v. Allman, 
1872, p. 349, pi. xvi. 
In 1901, a single specimen was taken on 31st July. 
In 1902, it was occasionally seen from 11th March to 23rd 
April, and on 23rd July, when a single specimen was taken. 
