HIHANG TILL K. SV. VET. .\KAl). HANDL. HAND 1. N:0 11. 1.') 



52. Nitzschia paxillifer (MiiLLEK) HEiiiEii« (Bacillaria pa- 

 radoxa Sin. Syn. IJ pag. 10 P. ?y'2 lig. 27U) cxtremely rare. 



')?). Pleurosigma strigosum Sm (Syn. \'ol. I p. G4 Pl. XXI 



(ig. '208) verv nuv. 



54. Pleurosigma sestuarii (Bkéb.) Sm. (Syn. Vol. I pag. <db 

 Pl. XXI lig. 275) var.^ Small; « colour chestnut brown; strise 

 coarse, in smaller specimens about 33, in larger specimens about 

 43 in 0,02.5 m.7n. Lengtli O.isi) m.m. breadth 0,0 2 m.m. (large 

 specimen) Lenght 0,0.5 1 m.m. Ijrcadth 0,oi7 m.m. (small spe- 

 cimen). Tolcrably common. Pl. Il fig. 19. 



