I C»MARIUM. 



:od 



96. Cosmarium connatum lir^b. iii Kalfs Brit. Dawn. 1848, p. 108, t. i: f. 10. 



Forma paullo minor. Long. 77/x ; lat. 57'5/*; lat. isthm. 4^M. 

 Hab.— In springs on the river bank, imamo (No. 21001). 



97. Cosmarium pseudoconnatum Nordst. Desm. Brasil. 1870, p. 214, t. 3, i. 17. 



Var. ellipsoideum W. & G. S. West, Freshw. Alg. Ceylon, 1902, p. 168, 

 t. 20, f. 43-45. 



Long. 68-71/*; lat. 48-50/*; lat. isthm. : 17-37- 5* j crasa. 43*. 

 iM. — Mansang, near Hsipaw (No. 241H3). 



98. Cosmarium viride (Corda) Josh. New und Rare hom. 1^S5, t. 254. f. ft. 



Colpopelta viridis Corda, 1835. 



Cosmarium Cordanum Br^b., 1861. 

 Var. truncatum var. n. (PI. xiii, fig. 12). 

 Var. minor, apicibus truncatis. 

 Long. 27/u.; lat. 14*4^-15*3^ lat. isthm. 13 M . 



Hab. — Mansang, near Hsipaw (No. 24193). 



99. Cosmarium Prainii sp. n. (PI. xiv, fig. 12). 



C. submediocre, psene lj-plo lougius quam latum, piofundissime constrict uui , miiu 



gusto-lineari extremo subampl 



pane semicircularea, augulia buealiU 



leviter rotundatis et granulo dentato singulo instructs, scrie vorru.aruin ooiargina- 

 tarum circiter 14 intra et juxta ambitu, in centro semicellularuin granulis inagnil 12 

 quincnncialiter ordinatis et scrobiculis minutis inter granulos; a vcrtice visa- subanguM, 

 elliptic*, ad medium utrobique leviter inflate et granulis m»gnis 5 instruct*, polis 

 trigranulatis, serie verrucarum emarginatarum intra marginem lat< ralnn unumquemque 

 a latere visee subcirculares ; membrana punctata. 



Long. 51/t»; lat. 43^; lat. isthm. 13-5/*; crass. 26-5/*. 



Hab.— Mansang, near Hsipaw (No. 24193). 



100 



Cosmarium glaphyronotum sp. n. (PL xiv, figs. 16, 17) 



brana 



C. mediocre, circiter lj-plo longius quam latum, profuodissime constnetum, smu 

 aperto interdum angustiori ad extremum ; semicellulae transverse elhpUco-oblong.,, mar 

 ginibus lateralibus paane semicircularibus, apiee late truncate et subrecto ; meml— 

 ginious laieidiiu F mqtrn i s (;_7 ad marginem lateralem unuiuquem- 



grosse granulata, granulis subconicis magni, b < aa marg 



que apice glabro, granulis prope basin semieellul* multe minonbus et regione basah 

 que, apice giauro, g v *~ trrqrm i 08 m cen tro aemicellularum ; a latere vi«* ; 

 o-laVirn mm scrobiculis minutis circa granuios m wuhw 

 giaoia, cum miuui^uh . niarmnes later- 



dep 



a 



vertice via* late elliptic*, granulis ad et intra margin* 



ales magnis, regione centrali glabra. 



Long. 57-61-5,*; lat. 42-45m; lat. isthm. 11 *»{ crass. 34-15,.. 

 Hab — Mansang, near Hsipaw (No. 24193). 



Thie distinctive Co*,»r,um occurred a "™^ ^friction, tbe large «. «d 



o £ *. A toward *. W. arc £- ** .££«- ^ ^ ^ & 



Ferhaps the only species with which it needs V 



grandtform* Schmidle. 





