KoNOL. sv. vi:t. akademiens iiani)lin(;ak. band 26. n:() 2. 57 



26. €. latefasciata Grun. (1880). — V. linear, with broad, rounded ends. L. 0,06 to0,093; 

 B. 0,012 to 0,0 17 min. Axial area gradually enlarged from tlie ends to the middle. (Central area 

 a broad, transverse fascia. Striae 1(5 to 20 in 0,oi mm. ])arallel. Longitudinal lines broad, sub- 

 marginal. — Nov. latef. Grun. A. D. p. 29 PI. I f. 21. 



Marine: Arctic America! Greenland! Sea of Kara! Cape DesclinefF! Adriatic ((Trun.). 



27. C. galapagensis Cl. (1881). — V. constricted in tlie middle, with tongue-shaped seg- 

 ments. L. (XocT to (),09'2; B. 0,02.^), at the constriction 0,oo9 to 0,oii mm. Axial area narrow. 

 C'eiitral area a broad, transverse fascia. Median line M'ith small and indistinct terminal fissures. 

 Striai 15 to IG in 0,oi mm., not distinctly punctate, parallel. Longitudinal lines submarginal. — 

 Nuv. Galapagens. Cl. N. R. D. p. 14 PL III f. 40. 



Marine: Galapagos Islands! 



Var. roHtracta Grun. (1890). - L. 0,og2; B. 0,oi mm. Strite 18 in 0,oi mm. — JVar. con- 

 tracta A. S. Atl. CLX f. 13. 



Marine: Campeaehy Bay (Atl.). 



Var. jajjonica Cl. (1890). — L. 0,oo to 0,io; B. 0,oi9 to 0,o23, at the constriction O.oi to 

 0,0 14 mm. Axial area in each segment narrow lanceolate. Striae 14 to 16 in 0,oi mm. Longitu- 

 dinal lines mai'ginal or inframarginal. — Nav. gaJap. v. jap. A. S. Atl. CLX f. 16. Nav. correpta 



A. S. Atl. CLX f. 15. 



Marine: China (Van Heurck Coll.)! Japan (Beby Coll., Brun Coll.)! 



28. €. consimilis A. S. (1874). — V. linear, with parallel margins, narrowed towards the 

 ends. L. 0,og9 to 0, los; B. 0,oi.3 mm. Axial area narrow; central area a transverse fascia. Striae 

 13 to 16 in 0,0 1 mm. parallel. Longitudinal lines submarginal. — Nav. consimilis A. S N. S. D. 

 p. 91 PI. II f. 46. 



Marine: North Sea! Balearic Islands! 



29. C. aemnla A. S. (1874). — V. linear, with parallel margins and rounded ends. L. 0,0 2 9 

 to 0,04 i; B. 0,0 7 mm. Axial area very narrow or indistinct. Central area a broad fascia. Striae 

 19 to 23 in 0,oi mm. parallel. Longitudinal lines marginal or submarginal. — Nav. femula A. S. 

 N. S. D. p. 91 PI. II f. 47. Nav. suhdivisa Grun. A. D. p. 29 PI. I f. 20 (1880). 



Marine: Sea of Kara (Grun.), Baltic (Grun.), Normandy (Grun.), Adriatic! Cape Deschneff! 

 Arctic America! Greenland! Campeaehy Bay (A. S.), Virgin Islands, West Indies! 



Var. major Cl. a. Grove (1891). — L. 0,o7; B. 0,o85 mm. Strite 18 in 0,oi mm. slightly 

 radiate in the middle. — Nav. {Caloneis) cemula var.? major Cl. a. Grove Diatomiste I p. (57 PI. X f. 8. 



Marine: Macassar Straits! 



30. C. Wardii Cl. N. Sp. — V. linear, with cuneate ends. L. 0,o4 to 0,o9; B. 0,oi5 mm. 

 Central nodule dilated transversely into a stauros, reaching the margin. Axial area narrow, linear. 

 Longitudinal lines distinct, closer to the margin than to the median line. Strite parallel, 19 in 

 0,01 mm. slightly divergent at the ends. — PI. Ill f. 39, 40, 41. 



Bi^ackish water: Bristol, Conn. (Ward)! Hudson River (Ward)! 



31. €. formosa Greg. (1856). — V. narrow lanceolate, with obtuse ends. L. 0,o8 to0,oi3; 



B. 0,01.5 to 0,0 2 6 mm. Axial and central area uniting into a narrow and irregularly lanceolate 

 space, usually slightly dilated unilaterally in the middle. Striae 14 in 0,oi mm., almost pa- 

 rallel, slightly radiate at the ends. Longitudinal lines median. — Nav. formosa Greu. T. M. S. 

 IV p. 42, PI. V f. 6. A. S. AtL L. fig. 9, 10, 12, 13, 14, 15. Nav. oregonica Eiiu. Ber. 1870 

 PI. II: 1 f. 10. Nav. lihurnica Grun. V. H. Syn. p. 102 PI. XI f. 3. 



Brackish and marine: (Treenland! North Sea! Baltic! Atlantic coasts of N. America! Cape 

 Horn! Mediterranean Sea! Sierra Leone! Ceylon! Sidney! Sandwich Islands! California! Caspian 



K. .Sv. Vit. Akiul. Hiiuill. Bauil 2(5. N:o 2. 8 



