. '. L.M.B.C. MEDUSA. I 249 



and square. At each of the four angles is a large 

 diamond-shaped ocellus, the upper half of which is 

 bright golden yellow, and the lower half vivid scarlet or 

 .crimson. From each of the ocelli springs a short, reflexed., 

 cylindrical, yellow tentacle, which I have never seen to 

 extend itself. From one of the ocelli, below the short 

 tentacle, arises a long and thick one, highly extensile, and 

 of a golden colour, usually presenting a club-like shape." 



This statement does not give a quite correct description 

 of the species. I have examined the tentacle bulbs of 

 about two dozen specimens and failed to find an ocellus 

 definite in shape and colour. The tentacle-bulbs are 

 similar in shape, but one has a large tentacle and the 

 other three are without tentacles. Forbes describes and 

 figures each tentacle-bulb with a minute, reflexed, yellow 

 tentacle, and one bulb having an additional large tentacle. 

 The " minute tentacle " is the lower part of the tentacle- 

 bulb, which slightly curls over the margin of the umbrella 

 to which it is fixed. 



The colour of the tentacle- bulbs varies considerably in 

 different specimens. A few had no colour whatever in 

 the bulbs and only the large tentacle faintly coloured 

 with yellow. One specimen had the three bulbs, without 

 tentacles, quite colourless, but the tentacle-bulb of the 

 large tentacle of a yellowish colour. Most specimens, 

 however, have yellow or orange pigments in the lower 

 part of the bulbs, the part which corresponds to "minute 

 yellow tentacles " of Forbes. In the most brilliantly 

 coloured specimens the interior of the tentacle-bulbs has 

 a crimson pigment, the part which corresponds to the 

 crimson ocellus of Forbes. In one specimen the crimson 

 colour extended a little way along the ring-canal on each 

 side of the bulbs, and in two other specimens, brilliantly 

 -coloured, the whole ring canal was crimson. Crawford 



