418 
CIRRIPEDA. 
be this form, as I also do specimens enveloped in Alcyonium found on 
the Woodstown strand, Co. Waterford, by Dr. Farran. I find among my 
dried specimens collected at Bangor, in September, 1835, B. Alcyonii im- 
bedded in Alcyonidium adherent to Fucus nodosus. 
The following forms or species seem to be taken at particular depths. 
I write from memory : — 
1. B.punctatus, Mont, (abundant N. and E.). Littoral (see Down Notes, 
1846). 
This species only littoral on such parts of coast as looked to. 
2. B. ovularis. Laminarian region, and shallower often on Laminaria. 
(Not uncommon, N. and E.) 
3. B. costatus. Laminarian region. On Laminaria , on Pinnce. (Not 
common, N. E.) 
4. B. rugosus , as figured in Brown’s Illustrations. Between littoral and 
Laminarian region. (Common, N. E.) 
5. B. Communis. Moderate depths, on oysters. Dredged 10 or 12 to 
15 fathoms, Belfast Bay. 
6. B. Scoticus. On Modiolus vulgaris and shells of many kinds. (Com- 
mon, N. E.) 
Sept., 1847. — This is the species dredged from 20 fathoms, Belfast 
Bay, G. C. H. 
Genus Adna. 
A. Anglica, Leach. 
Three dead specimens were obtained on fragments of Caryophyllia from 
rocky ground east of Cape Clear, 40 to 50 fathoms, by Mr. M'Andrew. 
Genus Creusia. 
C. verruca , Leach. 
On wood floating in sea ; on crabs, &c., as well as shells, Down and 
Antrim coasts. On Pinnce taken inside and outside Cork Harbour, 
Cork Fauna. Youghal, Dr. Ball. 
Genus Coronula. 
C. diadema. 
I saw in Mr. Warren’s collection one, said to have been taken off a 
whale at Howth many years ago. March, 1847, W. T. 
