4 ART, 12. — K. YENDO. 



goniolithon and Lltharthron. Bat we can not find good reason 

 to separate the species in question from the present genus and 

 bring it into either of these two gener;i. 



The characters which distinguish the present section from the 

 next are rather ambiguous. Some of the members of the Eurytion 

 gradually approach this section in shape of articuli and in rami- 

 fication. Yet it is often convenient to reserve the name to re- 

 present the cylindrical A7)iphiroa. 



Sect. II. EURYTION DcNE. Memoii-. p. 113. 



A. nodulosa Kütz. Tal), Phyc. VIII. }>. 19. Tab. 41, %. 1. 

 A. Yerruculosa KiJTz. Phyc, GeD. p. 387, Tab. 79, fig, 3. 



= Amp. cpijptarthrodia ß verruculosa Hauck, Meeresalg, p, 276. 

 A. BeauYoisii Lamx. Histoir, p. 299. 



= Amp. exilis Harv. Ner. Austr, p, 95. 

 A. BeauYoisii ß crassiuscula (Harv.) f 



= A}np. exilis ß crassiuscula Harv, Ner, Austr. p. 95. 

 A. zonata Yendo. Cor. ver. Jap. p. 10. PI, 1, fig, 11-14 PL IV, fig. 9. 

 A. parthenopea Zanard, Icoiiogr. III. p. 268. Tab, 100. B. 

 A. echigoensis Yendo, Cor, ver, Jap. p. 11. PI. 1. fig. 15-16: PL IV 



fig, 10, 

 A. ephedrsea Done. Mémoi]-. p, 112, 

 « fusoides (Aresch,) t 



= Amp. fusoides Lamx, Histoir, p. 298, t. 11. fig, 2, 



= Amp. Poppighii Exdl, et Dies. Alg. NataL p, 290, 



= Amp. ephedrœa Harv, Ner. Austr, p. 95. t, 39. 



= Amp. uentricosa Lamx. (sec. Dcne. Memoii- p. 112.) 

 ß Gaillonii (Aresch.) f 



= Amp. Gaillonii Lamx, Histoir. p. 298. t. 11. fig. 3. 



= Amp. Guenzii Harv. Ner. Austr. p. 95. 



= Cor. ephedrœa Lamk. Mem. Mus. II p. 238. 



= Cor. Chara y Lamk. (sec. Done. Memoir, p. 112.) 

 A. anceps Done. Memoir, p, 113. 



= Cor. anceps Lamk. Mem, Mus. I. p. 238. 



= Cor. dilatata Lamx. Histoir. p. 299. 



= Anp. dilatata Aresch. iu J. Ag, Spec. IL. p, 536, 



= Amp. galaxauroides Hoxd. PLiut, Preiss, VoL II. p, 188. 



