— 35 — 



36. A. mia-ot'epliala Ktz. V. H. Syn. tab. XXVII, figs. i>0-23. 



Klong Ma.juiu. 



Area: Eurui)e. Haiidong. 



37. A. linearis W. Sm. V. H. Syn. tab.XXVIl, ligs. 31-3^2. 

 Klong Majuin, Klong Munse, Lem Dan. (5 samples.) 



— — — var. pusilla fiiun. V. H. I.e. figs. 33— 34. 



Klong Majuiii. 



Area: the main species: Europe, -var. pusilla: also in Greenland. 



38. A. exiJis Kt/.. V. H. Syn. tab. XXVII, iigs. 16-11). 



Klong Majum (two samples). 

 Area: Europe, Al)yssinia. 



39. A. affinis Grnn. V. H. Syn. tab.XXVIl, ligs. 39-40. . 



Klong Majum, Klong Munse. 

 Area: Europe, America, Tasmania. 



Achnanthklium CI. I.e. p. 191. 



40. A. rostrata Ost. n. sp. tab. nostr., fig. 11. 



L. 0,012 mm., B. O.OOG mm. Striae 10 in 0,01 mm. The outline 

 of both valve identical: elliptical with rostrate apices. Epitheca 

 with an unilateral horseshoe-shaped mark, Hypotheca: central pores 

 approximate, unilateral central area. 



This small species is obviously nearest to A. laiiceulata (Brcb.) Grun. 

 var. duhia Grun. (V. H. Syn. tab.XXVIl, figs. 12-13). 



Klong Sarlakpet. 



41. A. baccata Leud.-Fortm. Gl. Syn. II, tab. Ill, fig. 3. Leud.- 

 Fortm. Ceylon tab. I, fig. 5. 



In a slide from Klong Prao 1 found a specimen thus situated, that 

 it was quite agreeing with the figure by L.-F. quoted above, which is 

 referred with some doubt to A. haccata by P. T. Cleve (I.e. p. 195). 



Klong Prao, Klong Majum, Klong Sarlakpet, only in samples iahelled: „in 

 waterfall". 



Area: Ceylon. 



Epithemia Breb. (1838). V. 11. Traite p. ^94. 



4L'. E. .^rgiis (Ehr.) Ktz. var. 

 Klong Prao, Klong Majum. Rare. 



As the present form difi"ers h'om the type by its pronounced curva- 

 tion I have figured it in tab. nostr., fig. 12. 

 Area: the main .species: Europe, Java. 



43. E. gibbenila (Ehr.?) Ktz. var. iir«dii('(a Grun. V. H. Syn. tab. 



XXXII, fig. 12. 



3* 



