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 Alcj/onidium adherent to Fucus nodosus. 



The following forms or species seem to be taken at particular depths. 

 I write from memory : — 



1. B.piinctatus, 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 Pinna. (Not 

 common, N. E.) 



4. B. riic/osus, 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 

 Id fathoms, Belfast Bay. 



6. B. Scoticus. On Modiolus rulqaris 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 PiiuKe taken inside and outside Cork Harbour, 

 Cork Fauna. Youghal, Dr. Ball. 



Genus Coronula. 

 C. diadenia. 



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. 



