58 p. T. CLEVE, SYNOPSIS OF THE NAVICULOID DIATOMS.- 



Var. maxima Cl. — L. 0,2 1; B. 0, ii4 mm. Stride and puiicta 9 in 0,oi mm. 



Marine: Senda'i, Japan, fossil (Brun ('oil.)! 



Var. fennisfriata. — L. 0, is; B. 0,0 <j mm. Strire and pancta If! in 0,oi mm. 



Marine: Mexillones Grnano (Deby Coll.)! 



Var. undulata Cl. (1881). — L. 0,07; B. O.o.i.'i mm. Margins trinndulate. Stria? 14, puncta 

 IS in 0,01 mm. — N. R. D. p. 7 PI. TT f. 11). 



Marine: Galapagos Island! 



Var. Centraster Cl. — L. 0, i2."i; B. 0,007 mm. Areas bi'oad with a gronp of 5 to 9 large 

 granules on both sides of the central nodnle. Stria' lo, pniicta 20 in 0,oi mm. — Part. I PI. IV f. 14. 



Marine: Mexillones Guano (Deby Coll.)! 



Var. Schleinitzii Jan. (1881). — ■ V. elliptic-lanceolate. L. 0,12; B. 0,075 mm. Lateral areas 

 broad in the middle, narrower towards the ends. Striae 8 to 9 in 0,o 1 mm. — N. Schlcin. A. S. 

 Atl. LXX f. 43. Jan. Gaz. XV f. 1. 



Marine: Leton Bank (Atl.), Cape Horn (Petit). 



Var. fnitima Jan. — V. lanceolate, often with slightly trinndulate margins. L. 0, 11 to 

 0,14; B. 0,06 mm. Areas broad in the middle, suddenly narrowed towards the ends. Interior 

 margins of the areas convergent. Stria? 9 to 13, puncta 14 to 17 in 0,oi mm. — Gazelle Exp. 

 XV f. 2 to 4, 18. 



Marine: Falkland Islands (Deby Coll.)! Morocco! Madagascar! Col umbo, Ceylon (Letour- 

 neur (-oil.)! 



Var. manca A. S. (1874). — V. elliptical. L. 0, i.-i; B. 0,o69 mm. Areas broad with con- 

 vergent interior margins. Stria; 9, puncta about 1^ in 0,oi mm. — Atl. Ill f. 17. 



Marine: Campeachy Bay (Atl.). 



Var. californicn Grev. (1859). — V. elliptical. L. 0,o7 to 0,oi; B. 0,o4 to 0,o.'-.3 mm. La- 

 teral areas very large, semielliptical, smooth. Striai 10, puncta 13 in 0,oi mm. — N. californira 

 Grev. Edinb. N. Ph. J. X p. 29 PI. IV f. 5. N. calif, var. rampcchiana Grun. in A. S. Atl. Ill f. 19. 



Marine: California (Grev.), West Indies! Colon (Deby Coll.)! Campeachy Bay! 



Var. cirnimsecta Grun. (1874). — V. elliptical. L. 0,o6 to 0,19; B. 0,o.3 to 0,o8 mm. Areas 

 large, semilanceolate, with numerous dots and sometimes, large puncta. Stria; 9 to 15; puncta 10 

 to 18 in 0,01 mm. — N. polysiida var. circumseda Grun. in A. S. N. D. p. 89 PI. I f. 3(5, 42. 

 Atl. Ill f. 27, 28. N. polysiida A. S. Atl. Ill f. 2G. N. californica A. S. Atl. Ill f. (i. N. 

 Henned. var. grannlata Grun. in A. S. Atl. Ill f. 3. Jan. Gazelle Exp. XV f. 14. 



Marine: Finmark! North Sea! Mediterranean Sea! Red Sea! Ceylon! Madagascar! Mary- 

 land (Deby Coll.)! Florida! Cape Horn! Galapagos Islands! Mexillones Guano (Deby (Joll.)! Hun- 

 gary, fo.ssil (Deby Coll.)! 



Var. neapolitana Cl. — V. elliptical with subcuneate ends. L. 0, i.^i; B. 0,o7 8 mm. Areas 

 narrow, aboi;t ' j, of the breadth of the valve, with large, scattered dots. Strife 7,5, puncta 

 10 in 0,01 mm. 



Marine: Gulf of Naples! 



Var. nchuln.^a ("treo. (1857). — V. elliptical. L. 0,055 to 0,o85; B. 0,02.5 to 0,o4 2 mm. Areas 

 very large, suddenly narrowed at the ends, smooth. Stria; 14 to 1(), puncta 1(5 to 20 in 0,oi mm. 

 — V. nehnlosa Greg. D. of Clyde p. 480 PI. IX f. 8. Donk. B. D. p. 11 PI. II f. 2. A. S. Atl. 

 TIT f. 14; LXX f. 44. Nav. Hennedyi AVitt Archangelsk I). IX f. 5. 



Marine: North Sea! Morocco! Mediterranean Sea! Madagascar! (Jeylon! Galapagos Islands! 

 Florida! Fo.ssil: Archangelsk (Witt). 



The iV. Hcrinedyi var. fn.wili.s Pant. (II p. 47 PI. XTI f. 207) has a narrower area, and 

 belongs probably to the var. nebulosa, to judge from the fine striation. 



Forma haciUifcra Pant. (1889). — L. 0,112 to 0,125; B. 0,o48 to 0,01,2 mm. Stria; K! to 18 

 ill 0,01 mm. Areas with irregular linear markings. — N. hacillifcra Pant. IT p 42 PI. V f. 8<>: 

 N. Hennedyi var. aOiiorm. A. S. Atl. CXXIX f. 14. 



