KONGL. tSV. VET. AKADEMIENS I1ANI)1,IN(;AK. UAM) 27. N:u 3. 4o 



someAvliat traii.sverse. Stri.c 12 (middle) to 13 (ends) in 0,01 inin. radiate tlirotiglioiit, coarsely 

 punctate; puncta 14 in (),oi mm. - Uiatomiste 11 ]). 12 1*1. I f. 2. 



Slightly brackish water: Amatitlan, (Tuatemala, fossil! 



Var. rectilineata Cl. (189;J). — L. (),().i2; B. Oom inni. Stria" 1(1 in (),(ii mm. composed of 

 puncta, 17 in 0,oi mm., ari-anged in straight, longitudinal rows. — Diatomiste Vol. 11 p. 12 I'l. I f. 1. 



Brackish water: Cameroon, Africa! 



27. N. siiliphibola Cl. (1801). — V. elliptic-lanceolate, with rostrate, truncate ends. \j. O.o.jt 

 to 0,07; B. 0,02 mm. x\xial area narrow, but distinct, (-entral area rectangular, transv(!rsely 

 dilated, broader outwards. StritB 1) to 10 in 0,01 mm. radiate throughout, punctate; puncta 12 to 

 15 in 0,01 mm. — N. punctata c. asymnu'trica Lagst. Spitsb. D. p. 29 PI. II f. 7 (187;-}). N. Gastrum 

 V. styriaca Grun. Foss. D. Ost. Ung. p. 144 PI. XXX f. aO (1882). Franz Jos. Land D. p. W PI. 1 

 f. 35. iV. untphihola Cl. 1). of Finl. p. 33 (1891). N. styriaca Pant. Ill PL VI f. 102; PI. Xll 

 f. 194; PI. XX f. 298 (1893). 



Fresh water: Franz Josefs-Land (drun.) Spitsbergen! Beeren Eiland (Lagerst.), Sweden, 

 Alnarp, Skane! Finland! Hungary, fossil (Grrun.), S:ta Rosa, Calif.! Chicago foss.! 



28. N. Osilikii Pant. (1889). — V. elliptic-lanceolate, rostrate. L. 0,0:54; B. (i,oir> mm. 

 Axial area narrow. Central area transversely dilated. Strite 7, .5 to 8 in 0,oi mm., radiate 

 throughout. Puncta 10 in 0,oi mm. — N. (Gastriun car.?) Gdlikii Pant. II p. 4(i PI. XI f. 192. 



Brackish water: Hungary, fossil (Pant.). 

 Probably the same as N. ainphibolu. 



29. N. (irovei Cl. (1893). — V. broadly lanceolate, with obtuse ends. L. 0,06; B. 0,0:1 mm. 

 Axial area narrow. Central area large, transversely dilated, and widened outwards. Terminal 

 fissures in the same direction. Strite 16 in 0,oi mm., radiate throughout. Puncta equidistant, 

 15 in 0,0 1 mm. Among the median stride a few shorter are intermixed. — Diatomiste II p. 15 

 PI. I f. 14. 



Marine: Oamaru, N. Zealand, fossil! 



This species seems to be akin to N. transfuga var. Neupaueri. 



30. N. baccata Temp. a. Brun (1889). — V. broad, with parallel or slightly convex margins 

 and cuneate or rostrate, obtuse or truncate ends. L. 0,05 to 0,0.55; B. 0,o25 to 0,027 mm. Ter- 

 minal fissures in the same direction. Axial area linear. Central area large, orbicular. Strife 

 5,5 in 0,01 mm., radiate throughout. Puncta (5 in 0,oi mm. forming somewhat curved, longitudinal 

 rows. — D. foss. du Japon p. 42 PI. V f. 10. 



Marine: Japan, fossil! Colon (Deby Coll.)! 



31. N. Schulzii Kain (1889). — V. elliptical with rounded, obtuse ends. L. 0,12; B. 0,o4 

 mm. Axial area distinct, narrowed towards the central and terminal nodules. Central area 

 large, somewhat transverse. Terminal fissures turned in the same direction. Stria*, 7 in 0,o 1 mm., 

 radiate throughout. Puncta 6 in O.oi mm., forming somewhat curved, longitudinal rows. — Bull. 

 Tor. Bot. Cl. March 1889 p. 75 PL 89 f. 2 (according to Wolle Am. I). PL XXIV f. 5). N. con- 

 foederata Pant. Ill PL XXXIV f. 481 (1893). 



Marine: Atlantic City, N. Jersey, fossil (Deby Coll.)! 



Var. californica Cl. — V. elliptical, with subacute ends. L. 0,o96; B. 0,042 mm. Strite 5, 

 puncta 5 in 0,oi mm. — PL I f. 26. 



Marine: San Pedro, Calif, fossil (Kinker Coll.)! 



Var. marylandica Cl. — V. broadly elliptic-lanceolate, with obtuse ends. L. 0,oy; B. 0,o5 

 mm. Striae 6 in 0,oi mm. Puncta 6 to 7 in 0,oi mm., largest at the margins and gradually 

 decreasing in size towards the areas, forming irregular longitudinal rows. 



Marine: Nottingham, Maryland, fossil (Dr. Rae Coll.)! 



