— 196 — 
Rhodophyceae. 
Bangiales. 
Bangiaceae. 
Erythrotrichia Aresch. 
441. FB. ceramicola (Lgby.) Aresch. Phyc. Scand. p. 210; De Toni 
Syll. IV. p. 24. — Bangia ceramicola Chauv. — Goniotrichum ceramicola 
Kg. — Conferva ceramicola Lgby. Hydroph. Dan. p. 144, t. 48. 
On Padina and Laurencia. 
Koh Chang-Strait at Lem Ngob, on rocks between tide-marks. 
Area: Mediterranean; Atlantic; Cape Horn; Timor; Tonga Isls. 
Florideae. 
Gelidiaceae. 
Gelidium Lamx. 
42. G. crinale (Turn.) Lamx.; De Toni Syll. IV. p. 156; G. cornewm 
var. crinalis Auct. J. Ag. Spec. II. p. 470. — Fucus crinalis Turn. Hist. t. 198. 
The specimen agrees in its habit with Acrocarpus intricatus Kg. 
Tab. phyc. XVIII. t. 35. 
Koh Chang Noi and Koh Lom, creeping on coral-reefs in shallow water. 
Area: Mediterranean; Atlantic; Red Sea; Pacific. 
Rhodophyllidaceae. 
Catenella Grev. 
43, ©. Npae Zan. Phyc. indic. Pug. Nr. 35, t.6; De Toni Syll. IV. p. 321. 
Koh Chang-Strait at Lem Ngob, creeping on the roots of mangrove-trees 
hetween tide-marks. 
Area: Sarawak. 
Rhabdonia Harv. 
44, KR. Sehmidtii Reinb. n. sp. (Fig. 1—5). 
R. gelatinoso-membranacea, caespitosa, decumbens e tereti- 
usculo compressa, 1/2—2 mm. lata, dichotome et parce inordinateque 
lateraliter ramosa, frondes (et segmenta cujusque frondis) et inter 
se et cum aliis corporibus ope processuum hinc illine arcte con- 
crescentes; segmentis saepe + elongatis marginibus paullulum 
inaequalibus (sparsim leviter constrictis et dilatatis) apicibus 
obtusis vel subacutis, prolificationibus et processibus difformibus, 
pleruntque + minutis, e marginibus vel rarius e disco emergentibus, 
praecipue versus apices et ad apices obsitis. Tetrasp. generis 
