Gomphonema] diatomacejE (Comber). 
Golungo Alto. — In company with the van. ty figured .11 \ 
Heurck's Synopa t. \xv. f. 7: Rio Mm..; 5 Feb. 1866 No 147. A 
rather l>ro;ul form: on smal] sheila in ponds near Sangi D 
No. 146. 
\'ar. lata ( iomber, var. dov. 
Much broader and shorter than the typical form, and so Dearly 
symmetrical thai it might at firsl sight be mistaken for a Navi 
cida. Many may regard it as a distinct species; in which case it 
might be named G. Welwitschii Comber. 
Li bongo. Very plentiful, in company with li "'.man unfinished 
shaft of a coal mine above Banza de Libongo 8 358 No. 137. 
.!. G. intricatum Kuet . Bacillar. p. 87. t. ix. f. 1 | 1844). 
Var. pumila Grun. in V. Eeurck Syn. t. wiv. f. 35, 36 | I--" 
Goli ngo Alto.— Eio Muio ; 5 Feb. 1855. No. 147. 
1. G. dichotomum Euetz. Syn. in Linnsea viii. p. 569. t. w. 
f. is , L833). 
Golungo Alto. On small shells in ponds near Sange Dec 1854 
No. 146. 
5. G. Vibrio Ehrenb. Verbreit. in Berlin, Abhandl. K. Pr. Ak. 
1843. p. 41G (128). t. II. i. f. tO. 
I'i ngo Andongo.- On roots i of Piatia Stratiotes in the Cuige river 
near Quibinda ; March 1857. No. 130. 
6. G. gracile JChrenb. [nfusionsth. p. 217. t. xviii. t. 3 | I 
Pi ngo Andongo.— On roots of Pistia Stratiotea in the Cuigi 
near Quibinda ; March 1857. No. 130 
GOJ i NGO ALTO.— On small shells in pon. Is near Sange ; De< 
No. 146. 
Var. naviculoides Grun. in V. Eeurck Syn. t. wiv. f. 13 | 
Gomphonema naviculoides W. 8m. Brit. Diat. II. p. 98 
G. gracile var. naviculacea Cleve, loc. cit., I. p. 183 (1 : 
Golungo Alto. -On small shells in ponds near Sange; Dec. 1854. 
No. 146. 
7. G. commutatum Grun. in V. Eeurck Syn. t. wiv. f. 2 
I'i ngo Andongo.— On roots of Pistia Stratiotes in the Cuige river 
near Quibinda ; March 18;">7. No. 130 
8. G. oxycephalum Cleve, loc. cit, I. p. 187. t. v. t. 10 (1894). 
Goli ngo Alto.— Rio Muio ; 5 Feb. 1855. No. 147- 
9. G. olivaceum Kuetz. Bacillar. p. 85. t. vii. f. L3, 14(1844). 
EchineUaoHvacea Lyngb.Tent. Eydr. Dan.p.209.t. 70.f.C, I 3 
Pi ngo Andongo. <)n roots of /' I S in the Cui 
uear Quibinda ; March \*~>1. No. 130 
Goli ngo Alto. -On small sheila m ponds near Sange I »■ 
No. 146. 
10. G. tenellum Kuetz. Bacillar. p 84. t. viii. f. 8, b (18 
G. olivaceum var. teneWum Cleve, toe. cit., I. p. 188 I 1894). 
Pungo Andongo. On roots of P ■ Strati ! • th i 
aear Quibinda March L857. No. 130. 
