232 Rev. Mn. Landsboeoih; b*8 List of Zoophyte*. 



specimens found in the west. They are very branching ; and not one of 

 them approaches the torm of antennina. 



Antennularia antennina. Largs, Mr. Adamson. 



8. Plumularia. Lamarck. 



The name from plumula, dim. of pluma. 



1. Plumularia /a?cata. This is very rarely found on that part of the 

 Ayrshire coast with which I am best acquainted. It is found in Islay, 

 Arran, Kyles of Bute, Lochryan, Portpatrick, and Little Boss Island, 

 near Kirkcudbright. 



This is the sickle-coralline. When it is so common in so many parts 

 of Great Britain and Ireland, a person is rather surprised that it should 

 be so rare in the west of Scotland. 



2. P. cristata. Podded-coralline. This is very beautiful, and though 

 not common, it cannot be called very rare in the west. With us, it is 

 found only on Halidrys siliquosa, and it is generally in company with 

 Cellularia reptans and Sertularia polyzonias. When fresh from the deep 

 it is generally of a fine yellowish straw colour, though occasionally some 

 of the fronds arc pink. It is attached to the seaweeds by flexuous, horny, 

 root-like fibres. The finest plumes with us are between two and three 

 inches in height. The podded vesicles are large and curious. 



3. P. pinnata. I have dredged very fine specimens of this in Lamlash 

 bay. They are found on Pecten opercularis, adhering by root-like fibres. 

 The largest specimens were about four inches in height, by three-fourths 

 of an inch in breadth. They were of great beauty, purely white, and 

 very delicate. I have seldom found it with vesicles. 



4. P. setacea. This, though beautiful, is less so, and smaller than P. 

 pinnata. It is rather rare on the west coast. It is generally found on 

 univalve shells, but sometimes on Halidrys siliquosa. The main stem is 

 often clothed with vesicles. The finest and largest specimens I ever saw, 

 were got in Lochfine when I was aboard the Raven, with Mr. Smith of 

 Jordanhill and Professor John Fleming. They were rich in reddish vesicles. 



5. P. Catharina. This is a very elegant Plumularia, which I have 

 dredged in Lamlash-bay, adhering to Pectens along with P. pinnata, from 

 which it differs in several respects. The pinnce of the plumes are opposite, 

 and more sparse. I was the more pleased to fall in with this species, 

 because it bears the specific name Catharina, in honour of Mrs. Johnston, 

 a lady to whose pencil natural science is so much indebted. 



6- P. myriophyllum . Pheasant's tail coralline. I have never found 

 this very handsome zoophyte on the Ayrshire coast. It is found in 

 Arran, where it does not seem to be very rare. I have twice found it 

 with vesicles, which had not been seen before, and which are very remark- 

 able. They are figured by Dr. Johnston, in his History of Zoophytes. 

 It grows to a great size. One specimen I got was eighteen inches in 

 length. The Arran specimens do not seem to have the pinnw leaning to 

 one side, like ipeeime&fl from other places. 



See Johnston, I. page 118. 



