170 



EIIIZOGETOX. 



RHIZOGETOX Agass. 



Rhizogelon Agass. Cont. Nat. Hist. U. S., IV. p. 347. 18G2. 



Rhizogeton fusiformis Agass. 



Rhizogelon fusiformis Agass. Cont. Nat. Hist. U. S., IV. pp. 224, 347, PI. 20, Figs. 1 7 - 23. 18G2. 



Mas.sachu.setts Bay (Agassiz). 



Cat. No. 52, Nahant, Mass., July, 1861, A. Agassiz. Hydrarium. 



CLAVA Gmelin. 



Clava Gmelix; in Bescliiift. d. Berlin. Ges. Naturf. Freunde. 1775. 



Fig. 274. 



Clava leptostyla Agass. 



Clava leploMijla Agass. Cont. Nat. Hist. U. S., IV. pp. 218, 222, 

 Fig. 32 ; 338, PI. 20, Figs. 11 - IG*; PI. 21. 18G2. 



Clava muUicornis Stimps. Mar. Inv. Grand Manan, p. 11. 18.53. 



Clava muUicornis Leidv. Mar. Inv. Rhode Island and New Jersey, 

 p. 3, PI. XI. Figs. 33, 34. 1855. 



Clava muUicornis Pack.; in Can. Nat. & Gcol. Dec. 18G3. 



The Clava lepfosti/Ia (Fig. 274) seems to differ 

 from the C. midticornis by the greater number of 

 its tentacles. 



Point Judith (Leidy); Massachusetts Bay (Ag- 

 assiz). 



Cat. No. 51, Kingston, Mass., July, 1851, H. J. 

 Clark. 



Cat No. 451, Nahant, Mass., A. Agassiz. Hydro- 

 medusarium. 



Museum Diagram, No. 24. after L. Agassiz. 



Fig. 274. Clava leptostyla ; greatly magnified. 



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