CAMPANULARIA VERTICILLATA. 1G7 



I am indebted for my first knowledge of this species to 

 Mr. R. S. Boswell, who many years ago showed me speci- 

 mens of it exquisitely mounted, according to a method of 

 his own, so as to display the polypites. 



Hub. On the red algoe chiefly (Delesseria sanguined &c.), 

 near low-water mark and in moderate depths ; not 

 common. 



Pegwell Bay, near Ramsgate (R. S. Boswell) : Old Head 

 of Kinsalc, co. Cork (R. Allniau) : Ilfracombe; Swauage, 

 Dorset (T.H.): Courtniasherry Harbour, co. Cork (Gr. J. A.): 

 Jersey (A.M. N.). 



[Messina (var. breviscyphia, Sars); Bergen (Sars): Ha- 

 milton Inlet, Labrador, 15 fathoms, on red weed (T. H.) : 

 Massachusetts, " almost invariably attached to seaweeds, 

 or to the stem of other hydroids " (Agassiz) : Nova Scotia 

 (teste A. Agassiz.)] 



Section b. Branched and with compound stem. 



5. C. VERTICILLATA, Linnaeus. 



" HOUSE-TAIL CORALLINE WITH BELL-SHAPED CUPS," Ellis, Coiiill. '23, pi. xiii. 



figs, a, A. 



SEKTULARIA VERTICILLATA, Linn. Syst. 131U; Palais Elench. 115. 

 CLYTIA VERTICILLATA, Lamx. Cor. flex. 202. 

 HALECIUM VEKTICILLATUM, Okcit, Lchrb. Nat. 92. 

 CAMPAXULARIA VERTICILLATA, Lanik. An. s. V. (2nd ed.) ii. 131 ; Juhnst. B. Z. 



112, pi. xxvi. figs. 3, 4. 

 CAPSULAKIA VEUTICILLATA, Gray, B. M. Radiata, 87. 



Plate XXXII. fig. 1. 



STEMS erect, composed of many parallel tubes, irregularly 

 branched, obtuse at the top ; branches compound, cylin- 

 drical ; HYDROTHEC.E bell-shaped, rather large and deep, 

 expanding slightly and very gradually upwards, with 

 about 12 pointed denticulations on the margin, borne 



