HVDRO1DS 



TUI-: u'u<>us tuu.K ui-:;i"\ 



Campanularia verticillata (Linn.) Fig. : >0. 



i a I'ti'/Hi-iit n'rtieillnln Linn.. ?}Nt. Nat., p ; 1310.)' 



Ti-<>iili'i*iiitii'. Colony branched, attaining a height of about 5 inches. Stem ami branches fascicled, 

 composed of many parallel tubes from which the pedicels arise in a verticillate manner. Hydrothecse 

 large, rather broadly campanulate, with about 12 deeply cut acuminate teeth. 



29. C<iinii<iiit'!u/'<<t i)fj!"-ta (Alder). 30. Caiujxiniilai-ia rcrticillata (Linn!). 31. Campanularia amphora. (Ag .). 



(iiinoxonif. Gonangia borne on the main stem and branches, oblong flask-shaped, with nefcka 

 produced into tubular extensions with terminal openings. 



Distribution. Found in rather deep water attached to stones, shells, etc., Block Island Round, 17 

 to/ 45 fathoms; Fisher Island Sound, 4 to 11 fathoms. 

 (Ten-ill.) 



Campanularia amphora (Ag. ). Fig. 31. 

 ' Limmnlin amphora. Ag., Cont. Nat. Hist. U. S., iv, p. 311.) 



Trophomme. Colony attaining a height of 6 to 

 7 inches, branching in a subverticillate manner; the 

 branches incline upward more than in Obelia comims- 

 suratix, which it greatly resembles. "But the moist 

 marked difference is in the middle of each internode, 

 where'it bulges laterally and directly in line with the 

 point of insertion of the branch or pedicel below it." 

 (Li, Agassiz.) Pedicels annulated. Hydrothecse deeply 

 campanulate, very gracefully formed, aperture entire, 

 margin slightly everted. Hydranth with about 30 

 tentacles. 



Oonotome. Female gonangia elongate oval, about 

 four times as longas the hydrotheca, somewhat truncate 

 at top, and with a very small aperture. Male gonangia 

 more slender, with a slightly produced neck. 



nixtrilmtion. Common in shallow water in the 

 Woofts Hole region. This specifes is apt to be mistaken for Obelia commisguralw when the gonosome 

 is absent. 



Campanularia angulata Hincks. Fig. 32. 

 1 (Annals and Magazine of Nat. Hist,'; 3d series, vm, p. 2C1.) 



fmphonome. Colony slightly branched, attaining" a height of about three-fourths inch. Stem 

 genitulate, with long internodes, annnlotcd above t.Hi origin of each pedicel. Pedicels long, usually 



32. Campanulafia angulata Kincks. 

 A. Hydrotheca rtnd pedicel (enlarged). 



