170 



RHIZOGETOX. 



EHIZOGETOX Agass. 



RhizogeUm Agass. Cont Jfat Hist. U. S., TV. p. 347. 1862. 



Rhizogeton fusiformis Agass. 



RMzogeton fusiformis Agass. Cont. 2sat. Hist. U. S.,IV. pp. 224, 347, PL 20, Figs. 17-23. 1862. 



Ma.s.?achu.setts Bay (Aga.ssiz). 



Cat. 2s'o. 52, Xahant, Mass., July, 1861, A. Agassiz. Hydrarium. 



\^ 



CLATA Gmelix. 



Clata Gsrei-rs- ; in Beschaft. d. Bf-rlin. Ges. Naturf. Freunde. 1775. 

 274. 



Clava leptostyla Agass. 



Clava Uptoslyla Agass. Cont. Nat. Hist. TJ. S., IV. pp. 218, 222, 

 Fig. 32 : 338, PL 20, Figs. 11-16'; PL 21. 1862. 



Clava midlkomis .Stimps. ilar. In v. Grand ilanan, p. 11. 18-53. 



Claea mullkornis Leidy. Mar. Inv. Ehcxle Island and Xew Jersey, 

 p. 3, PL XL Figs. 33, 34. 185.5. 



Claea multkomis Pack. ; in Can. Nat. & GeoL Dec. 1863. 



The Clava leptostyla (Fig. 274) seeriLs to differ 

 from the C mv.lticornis by the greater number of 

 its tentacles. 



Point Judith (Leidy) ; Massachusetts Bay (Ag- 

 assizj. 



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

 Clark. 



Cat. Xo. 451, Xahant, Mass., A Agassiz. Hydro- 

 medasarium. 



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



Fig. 274. Clara leptostyla : greatly magnified. 



