238 
furcatum v. - Senarium (Ehr,) Nord., Pointsf. Skand. Vaxt., 4, a0: 27, 
1880. 
(Desm: senarium Ehr., Mikr. Lebens, Sud u. N. ‘Amer.,)Pl.14, 1, f. 22, 
1843.) 
orbiculare (Ehr.) Menegh., Syn. Desm., p. 25, 1840; Ehr. 1834. 
var. denticulatum Nord., Desm. Braz,, “p. 224, Pl. ‘4, f. 42,1870. 
yar. verrucosum Wille, Norges Fersk., p. 40, Pl. 2 fi 26, 1880. 
“var. depressum Roy & Bissett, Jepan Desm., p. 5, PI. 268, f.14, 1886. 
var. germinosum Playi., Some Sydney’ Desm. », p. 625, Pl. 12, f. 9, 
1908. 
ae ms (Bréb.). Playf., ‘Polym. and Life-hist., p./485, Pl. 12, 
‘15,191 
(St. muticum Bréb.in Ralfs Br. Desm., p. 125, 1848.) 
*f) tetragona Rac., Desm: Ciast., p.19,)1892. 
var. protractum Playt., Plankt. Sydney’ Water, :p. 532, Pl. 54, f. 25, 
1913. 
var. planktonicum Playf., bid., f. 27,1913. 
_aggeratum Playf., Desm. XN. S.W., p. 190, Pl. 4, f.'21, “1907. 
var. leve mihi. 
(St. orbic. v. aggeratum forma, Polym. and Life-hist., Pl. 12, 
SAR ARIENA) 
var. grantlosum mihi. 
(St. orbic. v. granulosum Playf., ibid. -p. 486, Pl. 12, £16, 1910.) 
var. aculeatum mihi. ; 
(St. orbic. v. aculeatum Playf., ibid., f 17, 1910.) 
monticulosum v. bifarium, forma, mihi. 
(St. orbic. v. bifarium, forma, Playf., Polym. and Life-hist., p. 487, 
Pl. 12, f. 18, 1910.) 
forficulatum Lund., Desm. Suec., p. 66, Pl. 4,f.5, 1871. 
leptacanthum Nord., Desm. Braz. Centr., p. 191, Pl. 4, f. 46, 1870. 
‘Tohopekaligense vy. trifurcatum W. & G. 8. West, Alg. Madag., p. 80, 
Pl. 9, f. 8, 1895. 
dilatatum var. insigne Rac., Desm. Ciast., p. 388, Pl. 7, f. 13, 1892. 
“*punctulatum Bréb., in Ralfs Brit. Desm., p. 133, Pl. 22, f. 1, 1848. 
var. pygmaeum (Bréb.) W. & GS. West, Br. Desm., iv, p. 184, 
Pl. 128, £. 1-2, 1911. 
var. striatum W. & G. S. West, abid., p. 186, Pl. 128, f. 5-6, 1911. 
“*denticulatum (Nag.) Arch., in Pritch. Infus., p. 738, 1861; Nag. 1849. 
striolatum (Nag.) Arch., ibid., p. 740, 1861; Nig. 1849. 
retusum Turn., Erw. Alg. E. Ind., p. 104, Pl. 13, f. 13, 1892. 
var. punctulatum: ich. & Gutw., “Alg. Nov., p. 174, Pl. 5, f..44, 1894, 
hexacerum (Ehr.) Wittr., Gotl. 0. Oelands Sétv. Alg., p. 51, 1872. 
(Desm. hexaceros Ehr., Organ. kleinst. Raum.,p. 149, 1834.) 
(St. tricorne Ralfs, ‘Brit. Desm., p. 134, Pl. 22, f. 11, 1848.) 
_ Haabiliense Wille, Norges Fersk., p. 42, Pl. 2, £27, 1880. 
Auburnense Playf., Desm. N.S.W., p. 191, Pl. 5, f. 10, A907. 
{. minor Playf., ibid. 
pseudobiretum Pleyf., ibid., p. 183, Pl. 4, f. 15, 1907. 
tiara Playf., ibid., p..184, Pl. 4, £16; 1907. 
moniliferum Playf., ibid.,p. 188, Pl. 5, f..7, 1907. 
campanulatum Playf., zbid., p. 189, Pl. 5, £. 8,:1907. 
