156 CATALOGUE OF ADDITIONS TO, AND ALTERATIONS 



* This interesting species is rather rare in Fowey harbour ; I 

 published the discovery of it in the Trans, of the Eoy. In, of 

 Corn., p. 56 to 59, plate 2, 1848. It is not uncommon in many 

 places in shallow water, especially on Zostera marina and Chorda 

 filum. (C.W.P.) Southampton. (O.W.P.) 



4 — Pltjmulakia Siliquosa. — Bincks. Mag. Nat. His., vol. 19, 

 110, 1877, plate 12. 



From Guernsey, supplied by Mr. E. S. Cooper. (T.H.) This 

 new species I got off the Deadman in 1843 and 1844, two or 

 three times; it was considered by Johnston "as a single- 

 stemmed variety of Plumidaria Catharinar I have it also from 

 Peterhead and Wick, N.B. It is a nice addition to the Cornish 

 list, and is fully described in a paper I published in the Trans. 

 ±ioy. Boc. of Cornwall, 1877, pp. 376-379, figs. 1, la. It is 

 rare. (C.W.P.) 



^' 5 — Plumularia Obliqua. — Saunders, pi. 67, fig. 1. 



Saunders, Ann. Nat. His. (3rd. 



ser.) 8, 258 ; and Hinchs at p. 304 of Brit. Hy. Zoo., says common 

 in some parts on weed, &c., near low water mark "in the South- 

 Eastern district," and quotes Couch as having found it in 

 Cornwall. (E.Q.C) 



NAKED-EYED MEDUSM 



Order. — Thecapora. — Hincks. 



I must plead, as the Eev. A. M. Norman did in his Eeport of 

 the Shetland Dredging to the British Association in 1868, that 

 " our knowledge " is so imperfect about these beautiful objects 

 that it is " better to keep them together here, leaving future 

 discovery to assign them their respective places." I have, how- 

 ever, given a list of those found by Forbes and myself on the 

 Cornish coast, and as well added some observations of mine on 

 two species I had the pleasure of seeing sent forth by their 

 parents when I resided in Cornwall, and of the rearing and see- 

 ing the changes in the young of another in Scotland. I regret 

 that the information is so imperfect and so smal^. 



