FAUNISTIC NOTES AT PLYMOUTH DURING 1898-4. 213 
in the absence of a collar. The polypites were white, the stems 
entirely destitute of annulations or corrugations, and white. The 
colonies were crowded with gonophores, which each exhibited a red 
patch. I scarcely doubt that these two forms belong to the same 
species. 
Coryne pusilla has been common in tide-pools below the Hoe, 
side by side with Clava multicornis and Tubularia humilis ; also on 
the breakwater, and at Cremyll below the garden battery. Inter- 
mediate varieties between the Coryne pusilla and CO. fruticosa of 
Hincks are common, On July 17th, 1893, I found an extensive 
colony of another Coryne attached to a root of Laminaria trawled in 
the Sound, The stems were slender, branched, and irregularly 
annulated ; the polyps red, much elongated, and provided with 
fifteen to eighteen tentacles, scattered or irregularly whorled. The 
colony attained a maximum height of 14 inches, but was for the 
most part less than this, and of lax growth. It is undoubtedly 
allied to Hincks’s C. vermicularis, and I record it as such ; but it 
should. be noted that the colony was certainly not dense, and the 
tentacles were apparently less numerous than in Hincks’s type. As 
our colony was without gonophores, however, it is possible that 
these differences may have been due to immaturity. 
Eudendrium ramosum has been frequently dredged on the New 
Grounds and in Millbay Channel. 
Garveia nutans was dredged in Millbay Channel several times 
during April and May, 1894. It is interesting to notice that while 
this species is common between tide-marks at Hilbre Island at the 
mouth of the Dee, at Plymouth it is rare, and lives in deep water 
only (15 to 20 fathoms). 
Another Gymnoblast which I found plentiful on certain stones at 
Cremyll presents several remarkable features which will justify a 
separate description: it is now under examination. 
During the latter half of February and March, 1893, the tow-nets 
contained numerous specimens of the Anthomedusa Rathkea octo- 
punctata, which is the Lizzia octopunctata of Forbes’ “ Naked-eyed 
Meduse,” and the Cytzis octopunctata of M. Sars. Haeckel has 
made a mistake in treating these as different forms, and in assigning » 
them to different genera, viz. to Margelliwm and Rathkea respec- 
tively. In Haeckel’s system (System der Medusen, pp. 95 and 97) 
each of these types possesses eight bundles of tentacles, but in 
Rathkea the bundles are perfectly similar to one another, while in 
Margellium the four perradial bundles contain a greater number of 
tentacles than the four interradial. The mature Rathkea (= Cyteis) 
octopunctata of Sars and Haeckel is characterised by having three 
tentacles to each bundle ; but since Sars has shown that the inter- 
