I'l Froceedinfjs of the Royal Society of Victoria. 



(xvii) Conocliilus volvox. Heidelberg, Melton. 



(xviii) Laclnidaria yedunculata. We found some 

 colonies of this species at Brighton, and examined it 

 carefully, subsequently mounting specimens. To the some- 

 what meagre description in Hudson and Gosse, we may add 

 the following particulars : — The corona is circular, but for 

 the iiKlentation on the ventral side, which is shallower than 

 in either Megalotrocha alhofiavicans or L. socialis. The 

 ventral antennre are merely tubercles placed wide apart. 

 The eyes are visible in the adult as very small red specks ; 

 they are seen with difficulty in living specimens, but are 

 plainly visible in some of the mounted ones. One of the 

 colonies was an old one, only a few adults were present, but 

 it was full of eggs, and as we watched it, many of them 

 hatched out. Some of them swam for some time with the 

 foot still recurved on the body, but their motions were so 

 active that we wei'e unable to examine them closely. 

 Attached to the weed close to the base of the large colony, 

 was a small one, having a peduncle of the normal type, 

 though very short, but the animals composing it were widely 

 different from the full grown specimens. They had, however, 

 a certain resemblance to the young ones just hatched 

 from the eggs of the old colony. Unfortunately, we 

 were unable to examine them carefully that evening, and 

 they were all dead the next day. Since writing the above, 

 Mr. Sliephard has received from Mr. Whitelegge tracings of 

 his drawings of L, pediLiiculata, and in these, one antenna 

 is shown of the character that we have described above. 

 Specijuens have also been found by Messrs. Mann and 

 Shephaixl at Heidelberg, but apparently the species is not 

 connnon. 



We have also met with some species which we take, to be 

 new. 



(xix) CEcideti wihoni'i. We found this form in water 

 collected at Brighton Beach in July. It approaches (E. 

 crystalLuiiis, but differs from it in the form of the body 

 when fully expanded, and in the tube, which is gelatinous, 

 deal- and rounded, not fluffy and irregular. The corona is 

 indistinctly two-lobed, nearly three times as broad as the 

 body, dorsal gap minute, anil the muscular thickenings of 

 the corona more pointed than in the other (Ec'usteti which we 

 iiave seen. The antenna? are set flush on the l.'ody, so that 



