134 P. T. CLEVE, SYNOPSIS OF THE NAVICULOID DIATOMS. 



I have not seen this species, which according to GtRunow resembles N. inornafo. The two 

 distinct longitudinal lines seem to indicate that N. fusoides is a Caloneis. 



9. N. Foliola Brun a. Temp. (18?<9). — V. narrow-lanceolate, subacute. L. 0,(i8 to 0. i; 

 B. 0,0 15 to 0,0 17 mm. Central pores of the median line distant.. Striation fine, most visible near 

 the margin. — Brun a. Temp. I), f. du Japon p. 43 PI. VII f. 15. 



Marine: Japan, fossil (Brun a. Temp.). 



I have not seen this species, which is not sufficiently figured and described to acertain its 

 proper place. 



10. N. iiionmoiitliiana Grun. (1880). — V. fusiform. L. 0,o6-2 to 0,o9; B. (»,oii to 0,022 

 mm. Median line with somewhat distant central pores and small commadike terminal fissures 

 turned in the same direction. Area linear. StritP \6 (middle) to 20 (ends) in (»,()i mm., almost 

 parallel in the middle, radiate at the ends. — Grun. A. I), j). 46. Icon. n. PI. V f. 20. 



Fresh water: N. America fossil (C'herryfield, Monmouth)! 



11. N. Haunilerii Pant. (188()). — V. elliptic-lanceolate, with obtuse ends. L. 0,o96 to 

 0,11; B. 0,0 18 mm. Area narrow, linear-lanceolate. Stria^, 9 in 0,oi mm. almost parallel in the 

 middle, radiate at the ends, coarsely punctate; puncta 13 in 0,oi mm., forming longitudinal un- 

 dulating rows. — Pant. I p. 22 PL XII f. 108; II PI. XXIII f. 347. 



Marine: Hungary, fossil (Pant.). 



Var. interrupta Pant. (1886). — Stria 12 to 14 in 0,oi mm. crossed by a marginal line. — 

 Pant. I 1. c. f. 103. 



Marine: Hungary, fossil (Pant.). 



I have not seen this species, which I have provisionally placed in this section. It is perhaps 

 akin to Nav. rhomhica. The terminal fissures seem, according to the fig. 103 in Pantocseks work, 

 to be turned in contrary directions. 



12. N. occidentalis Cl. N. Sp. — V. lanceolate, with slightly protracted ends. L 0,o4 to 

 0,045; B. 0,0 15 to 0,02 mm. Axial area moderately broad somewhat dilated in the middle. Strife 

 13 in 0,01 mm. radiate throughout coarsely punctate; puncta about 16 in 0,oi mm. 



Fresh water: Pitt Eiver (Oregon), fossil (Grove Coll.)! 



This species has some resemblance to N. lacustris, from which it differs by its much 

 broader area. 



13. N. semitecta A. S. (1874). — V. lanceolate. L. 0,042; B. 0,0 i:i mm. Area lanceolate, 

 broad. Strite 10 in (),oi mm., slightly radiate throughout, coarsely punctate. — A. S\ Atl. Probe- 

 tafel f. 11. 



Marine: Campeachy Bay (Atl.). 



I do not know this species, whiuh may perhaps be a Mastogloia. 



14. Navicula Iota Cl. N. Sp. V. elliptic-lanceolate, gradually tapering from the middle 

 to the subacute ends. L. 0, 1; B. O.o-ji mm. Median line with somewhat distant central pores and 

 small terminal fissures. Axial area broad, lanceolate. Striae 13,5 (middle) to 16 (ends) in 0,ni 

 ram., slightly radiate throughout, of equal length in the middle, distinctly punctate; jiuncta 16 in 

 0,01 mm. arranged in regular, longitudinal rows. — PI. V. f. 22. 



Marine: Madagascar (Van Heurck Coll.)! 



15. N. Kajtpa Oh. N. Sp. — V. narrow lanceolate, with elevated, acute ends. L. 0,i"; 

 B. 0,028 mm. Median line with transversely dilated median pores and elongated terminal fissures, 

 turned in the same direction. Area narrow near the ends of the valve, gradually widened towards 

 the middle. Striaj 16 in 0,i)i mm., not closer near the ends, of equal length and slightly radiate 



