58 P. T. CLEVE, SYNOPSIS OF THE NAVICCLOID DIATOMS. 



Sea (Grun.), Saxoiiy! Great Salt Lake! Oregon, fossil! Guatemala, fossil! Mexico, fossil! Argen- 

 tina, Rioja! Canieroon, Africa! 



Var. hohniensis Cl. (18^1), — L. 0,07 5 to 0,12.^ B. 0,u2 to (l,o:5 mm. Area wider. Strite 

 11 to 12 in 0,0 1 mm. Longitndinal lines faint or indistinet. — Nar. Jiohii. Cl. X. R. I). p. H 

 Pl. II f. 18. K formom V. H. Syn. Pl. XI f. 2. 



Brackish water: Baltic, (Vaxholm, Åbo)! 



Var. intcrrupia Cl. — L. 0,07; B. 0, 01. 3 mm. Axial area narrower. Central area a trans- 

 verse fascia. Strite 11 in O.oi mm., parallel. Longitndinal lines median. 



Brackish water: Yarra, S. Anstralia! 



Var. qnaclrilineata Grön. (1879). — L. 0,044; B. 0, 09 mm. Area narrow, lanceolate. StriiK 

 about 17 in 0,oi mm. Longitndinal lines donble. — N. f/iiadrilii/efifa Grun. Cl. M. I). X:o 204. 



Brackish water: Oakland, Calif. (Grun.). 



32. C. (Alloioiieis) curvinervia Grun. (1878). — V. lanceolate, slightly a.symmetrieal. with 

 obtuse euds. L. O.ufis to 0,ii.'); B. 0,022 to 0, 028 mm. Median line excentric, with arcuate 

 oomponents. Axial and central areas uniting in a narrow and asj^rametincal lanceolate space. 

 StricB 8 to i) in 0, 01 mm. slightly radiate. Longiti^dinal lines distinct, median. — Grux. in Cl. 

 W. Ind. D. p. 8 Pl. II f. 13. 



Brackish water: Elepliant Point, India (Grun.) Island of Rhea near Singapore! 



33. C. iiiiip]iisbs¥na Bory (1824). — V. elliptical, with capitate to rosti^ate ends. L. 0,o6 

 to 0,08; B. 0,0225 to 0,03 mm. Axial and central area uniting in a large rhombic-lanceolate 

 space. Strite 1(5 to 17 in 0, 01 mm. radiate to the ends. Longitndinal lines median. — Navlc. ain- 

 pldnh. BoRY Encycl. meth. T. 2 (according to Ehrenb.). Frustulia dejyressa Kutz. Dec. N:o 72 

 (1833) according to Lagerst. ~ Nav. mnpMsloina W. Sm. B. D. I Pl. XVII f. 147 a. (1853). 

 Grun. Verh. 1860 p. 534 Pl. IV f. 3fi. Donk. B. D. p. 36 Pl. V f. 13. V. H. Syn. p. 102 

 Pl. XI f. 7. 



Fresh water: Sweden! England! Belgium (V. H.) Switzerland (Brun), Caspian Sea (Grun.). 



Var. fugcafa Schum. (1867). — V. rectangular, with rostrate ends. L. 0,04 to 0,045; B. 0,oi- 

 mm. StricTB 16 in 0, 01 mm. — Nar. fuscata Schum. Pr. D. II N. p. 57 Pl. II f. 43. Grun. A. D. 

 p. 31 Pl. I f. 27. 



Brackish water: Baltic (Schum.), Kära Sea (Grun.). Caspian Sea (Grun.). 



Var. suhsalrna Donk. (1873). - V. elliptical with rostrate-apicnlate ends. L. 0,07; B. 0,025 

 mm. Striaä 17 in 0,oi mm. — Nav. suhsalina Donk. B. D. p. 24 Pl. IV f. 2. Nav. avqihislxena 

 W. Sm. b. D. i Pl. XVII f. 147 ,i. Nav. umph. v. .mhs. V. H. Syn. p. 102 Pl. XI f. 6. Daxnf. 

 Balt. D. Pl. II f. 14. 



Brackish water: Greenland! Spitzbergen! Finmark! Bohuslän! north coasts of Britain (Donk), 

 Baltic! Saxony, Mansfelderseen ! Rostock, fossil! 



Forma major. — V. lanceolate, with gradnally attenuated ends. L. 0,i; B. 0,0:5 mm. — 

 V. H. Syn. Pl. XI f. 4. 



Brackish water: Belgium (V. H.). 



Var. VulMtiuovicii Pant. (1886). — V. lanceolate, subrostrate. L. 0,o77 to 0,095; B. 0,029 to 

 0,032 mm. Area large, lanceolate. Stria? 12,5 to 15 in 0, 01 mm., closer near the euds. — Nav. 

 Vul:o. Pant. I p. 29 Pl. I f. 7, n p. 54, Pl. XII p. 220. 



Brackish water: Hungary, fossil! 



Var. Uhurnica Grun. (1860). — V. broadly lanceolate. L. 0,o5 to 0,u; B. 0,022 to O.035 

 mm. Axial area narrow, slightly dilated in the middle. Strise 16 to 17 in 0,oi mm. Longitn- 

 dinal lines more approximate to the margin than to the median line. — Nav. lib. Grun. Verh. 

 LS6() p. 547 Pl. III f. 25. 



Brackisli: Adriatic (Grun.), Colon (Deby Coll.)! Calcutta (Deby Coll.)! 



