200 MESSRS. W. WEST AND G. S. WEST ON 
Subfamily PROTOCOCCACES. 
Genus PrEUROCOCCUS, Menegh. 
311. PLEUROCOCCUS VULGARIS, Menegh.; Rabenh. Flor. Europ. Algar. iii. p. 24. 
Hab. On decomposing surface of gneiss, Matava. 
Genus TrocuHiscrA, Kuetz. 
312. TROCHISCIA ACICULIFERA, Hansg. in Hedwigia, xxvii. 1888, p. 129. Acanthococcus 
aciculifera, Lagerh. 
Hab. Stream, Victoria Park, Colombo. 
313. TROCHISCIA RETICULARIS, Hansg. l.c. p. 129. Acanthococcus reticularis, Reinsch. 
Hab. Paddyfield between Kosgoda and Urahaighasmahendai. 
Class MYXOPHYCEZ. 
Order HORMOGONEZ. 
Suborder HETEROCYST E. 
Family RIVULARIACE A. 
Genus CALOTHRIX, Agh. 
314. CALOTHRIX JULIANA, Born. & Flah. in Ann. Sci. Nat. 7° série, Bot. iii. 1886, p. 348. 
Lyngbya juliana, Menegh., 1841. 
Crass. fil. 13°5-15°5 u; crass. trich. 9°5-11°5 u. 
Hab. In artificial tank, Peradeniya. 
315. CALOTHRIX FUSCA, Born. & Flah. l. c. p. 364. Mastichothriz fusca, Kuetz. in Phyc. 
General. 1843, p. 232. 
Hab. In pond, Royal Botanical Gardens, Peradeniya. 
316. CALOTHRIX BREVIARTICULATA, West & G. S. West, in Journ. Bot. xxxv. 1897, 
p. 240. 
Crass. fil. 8°5-13°5 u; crass. trich. 7-75 m. 
Hab. Epiphytie on Plectonema Wollei, Farlow, in artificial tank, Peradeniya. 
