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



I have not seen tliis species, which according to GrRUNOW resembles N. inoriiata. The two 

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



9. N. Foliola Brun a. Temp. (1889). — V. narrow-lanceolate, subacute. L. O, os to O.i; 

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

 the margin. — Brun a. Temp. D. f. du Japon p. 43 Pl. 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. nionmoiithiaiiii Grun. (1880). — V. fusiform. L. 0,o62 to 0,o9; B. O.oii to 0,022 

 mm. Median line witli scjuiewhat distant central pores and small comma-like terminal fissures 

 turned in the same direction. Area linear. Strige 16 (middle) to 20 (ends) in (>,oi mm., almost 

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



Fresh water: N. America fossil (Cherryfield, Monmouth)! 



11. N. Bäiuiilerii Pant. (1886). — V. elliptic-lanceolate. with obtuse ends. L. O.oae to 

 0,11; B. 0,0 18 mm. Area narrow, liiiear-lanceolate. Strite 9 in 0,oi mm. almost parallel in the 

 middle, radiate at the ends, coarsely punctate; puncta 13 in 0, 01 mm., forming longitudinal un- 

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



Marine: Hungary, fossil (Pant.). 



Var. interru2)ta Pant. (1886). — Striee 12 to 14 in 0,01 ram. crossed by a marginal line. — 

 Pant. I 1. c. f. 103. 



Marine: Hungary, fbs.sil (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 direction s. 



12. N. occideiitalis Cl. N. Sp. — V. lanceolate, with slightly protracted ends. L O.04 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, 01 mm. 



Fresh water: Pitt River (Oregon), fossil (Grove CoU.)! 



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. 0,01,3 mm. Area lanceolate, 

 broad. Striai 10 in 0, 01 mm., slightly radiate throughout, coarsely punctate. — A. S. Atl. Probe- 

 tafel f. 11. 



Marine: Campeachy Bay (Atl.). 



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



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

 to the subacute ends. L. 0, 1; B. 0,021 mm. Median line with somewhat distant central pores and 

 small terminal fissures. Axial area broad, lanceolate. Strise 13,5 (middle) to 16 (ends) in 0, 01 

 mm., slightly radiate throughout, of equal length in the middle, distinctly punctate; puncta Ki in 

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



Marine: Madagascar (Van Heurck Coll.)! 



15. N. Kappa Cl. N. Sp. — V. narrow lanceolate, with elevated. acute ends. L. 0, 17; 

 B. 0,028 mm. Median line with transveisely 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. Sttnte 16 in 0,ui mm., not closer near the ends, of equal length and slightly radiate 



