ASCIDIOIDA. 469 



Genus HlPPOTllOA. 

 //. catenidaria, Flem. 

 This is very common on Pintue dredged on the coast of Cork, W. T. 

 (On shells dredged in 40 fathoms water at Sana Island, West coast of 

 Scotland, Mr. Hyndman.) (On a Pholas dacti/his found at Compton 

 Bay, Isle of Wight, W. T.) On Buccinum ZetlamUcum taken on long 

 lines in deep water at Bunowen, Co. Galway, Dr. FaiTan's collection. 



Januan/, 1848. — On stone dredged from 40 fathoms off Gobbins, Co. 

 Antrim, a fine specimen of Cellej^ora cervicornis on same stone. 



H. divaricata, Lamx. 



This species is of much less frequent occurrence on the PinncB I have 

 seen from the coast of Cork than H. catetudaria, investing the roots of a 

 small plant of Lanu'iiaria digitata found at Bangor, Co. Down, in LSSo; 

 subsequently obtained on Solen frcif/ilis, and on a stone dredged in Strang- 

 ford Lough, W. T. On a Sulcn dredged in Dalkey Sound, Dublin Bay, 

 Dr. Ball, W. T., &c. On various shells [Liina teiieni, Pectcn ahsoletus 

 and P. opcrculans, Psammohiajiorida, &c.) dredged from a depth of 40 

 fathoms, near Sana Island, by Mr. Hyndman. In this locality it is much 

 more common than H. catenidaria, W. T. Belfast Bay, on shells, Mr. 

 Hyndman, 1844. 



H. sica, Couch. 



Found within a very large dead Pimm dredged at the entrance of Belfast 

 Bay. Mr. Couch's description, but not his figure, is applicable to my 

 specimen. The striking characters may be noticed. The length of the 

 cells is, as described, '• about four times their transverse diameter," and the 

 apertures " are long and tubular, frequently as long as the cell." But 

 whether this remarkable form may not be due to the security and free- 

 dom from injury enjoyed by the Zoophyte within the closed valves of the 

 Pinna, I shall not, from the examination of a single specimen, pretend to 

 determine. ^Ir. Couch's specimens were however procured " on stones, 

 from deep water, common." But for this character (which probably may 

 not be permanent) I should not enumerate my Hippotlioa as distinct from 

 H. divaricata, which too is described by Dr. Johnston as sometimes 

 having the apertures " sJiorthj tubular." 



Gcmis Anguinaria. 

 A. spatulata. Lam. 



This is stated in Mr. Templeton's catalogue to have been " found on 

 the shore at Carrickfergus, on the sand, Aug., 1811." — Mag. Nat. Hist., 

 ix. p. 466. The specimen labelled under this name in Mr. Templeton's 

 collection is Canipanularia si/rin//a, but having "Belfast Lough" simply 

 WTitten on it, may not be the one published. Of the A. spatulata I possess 

 specimens which invest the stem of Danya coccinca, collected at Youghal 

 by Miss Ball. 



At Freshwater Bay, and Vcntnor, in the Isle of AVight, I found it com- 

 monly investing various Alga», as Dasya, Plocavrinm, SpJuicelaria scoparia, 

 Griffithsia, &c. Foreign specimens appear on Algcp in my collection from 

 Trieste, " Briaritz, Atlantic Ocean," and Van Dicmen's Land. W. T. 



