KONGL. SV. VET. AKADEMIKNS HANDLINGAR. BANP 27. N:0 3. 151 



29. M. afflnis Cl. N. Sp. — V. narrow lanceolate. L. 0,035; B. 0,oi mm. Loculi 4 in 

 0,01 mm., almost eqnal, witli inner margin convex, forming a band reaching to the ends. Strife 12 

 in 0,01 mm. composed of 4 to 5 elongated pnncta. — Diatomiste I p. 163 Pl. XXIII f. 19. 



Marine: Galapagos Islands! 



This small species is nearly akin to M. Tcariana, but bas closer locnli and more coarsely 

 punctate strife. In tbe shellsand from JSTorway (Cl. M. D. 311) a similar form occiir.'! frequently 

 witbout loculi, which may possibly bave been destroyed in the cleaning processes. 



30. M, kariaiia Grun. (1880). — V. lanceolate. L. 0,0.5; B. O,oii mm. Central area small, 

 oi^jicular. Loculi 3 in 0,oi mm. larger in the middle, with convex interiör margin. StriiE 11,5 

 in 0,1 mm. parallel, finely punctate. — A. D. p. 17 Pl. I f. 3. 



Marine: Sea of Kära (Grun.). 



31. O. notata Pant. (1889). — V. elliptical. L. 0,035; B. 0,0205 mm. Loculi 6 on each 

 side, with convex interiör margin. Strise 15 in 0,oi mm., subradiate, punctate. — Pant. II p. 57 

 Pl. XXVII f. 392. 



Marine: Bory, Hungary, foss. (Pant.). 



Species entirely unknown to me. As the punctation is not described, it is impossible to say 

 what are its affinities. 



32. M. floridana Cl. (1894). — V. elliptical, rostrate. L. 0,043; B. 0,oi5 mm. Median line 

 straight. Axial area indistinct. Central ai'ea small, orbicular. Loculi imequal, the two to four 

 median much larger than the others (8 to 9 in 0,oi mm.), which form a narrow marginal band, 

 1'eaching nearly to the ends. Strise 14 to 16 in 0, 01 ram., very slightly radiate, distinctly punctate; 

 puncta, abont 14 in 0, 01 mm., forming longitudinal rows. — M. floridea (name altered by the 

 editor) Diatomiste II p. 55 Pl. III f. 1. 



Marine: Pensacola (Grove Coll.)! 



33. M. pusilla Grun. (1878). — V. narrow, linear-elliptical to lanceolate, rostrate. L. 0,o2 

 to 0,035; B. 0,006 mm. Loculi abont 7 in 0, 01 mm., 7 to 16 in each row, the median ones larger. 

 Strise 14 to 17 in 0,oi mm. slightly radiate, finely punctate. — M. Smithii var.? pusilla Grun. 

 Casp. Sea Alg. p. 14 Pl. III f. 10. Cl. M. D. N:o 206. A. S. Atl. CLXXXV, 34. Icon. n. 

 Pl. II f. 8. 



BracMsh and marine: Caspian Sea (Grun.), Adriatic! 



34. M. minuta Grev. (1857). — V. elliptical, apiculate. L. 0,02 to 0,035; B. 0,oi to 0,oi3 

 mm. Loculi 6 to 9 in 0, 01 mm. of equal size, qnadrate to rectangular, forming a band reaching 

 nearly to the ends. Strise 15 to 16 in 0, 01 mm. parallel, not interrupted, distinctly punctate. — 

 M. J. V. p. 12 Pl. III f. 10. A. S. Atl. CLXXXVII, 22. Icon. n. Pl. II f. 7. 



Marine! Seychelles! Java! Samoa! Sandwich Islands (Grun.), Honduras! Trinidad (Grun.)! 

 Bahamas (Grove Coll.)! Valparaiso (Atl.). 



35. M. (Stigniaphora) capitata Br. (1891). — V. narrow, lanceolate, capitate-rostrate. L. 

 0,03 to 0,035; B. 0,01 mm. Loculi two on each side, in the middle of the margin, rounded. Strise? 

 — D. espéces nouv. p. 45 Pl. XI f. 13. 



Marine: Java, parasitical on Rhizosolenia (Brun). 



36. M. oxigua Lewis (1861). — V. fusiform to lanceolate. L. 0,025 to 0,04; B. 0,oii mm. 

 Ijoculi few, 2 to 6 in the middle of each margin, 4 in 0,oi mm., with somewhat rounded interiör 

 edges. Strife 20 to 24 in 0,oi mm. slightly radiate. — Proc. Acad. Nat. Se. Philad. 1861 p. 65 

 Pl. II f. 5. V. H. Syn. p. 70 Pl. IV f. 25, 2C. A. S. Atl. CLXXXV f. 33. M. amygclcda Leud. 

 FoRTM. D. Malaise p. 19 Pl. II f. 7 (1892). 



Brackish and marine: Baltic (Gothland)! Belgium (V. H.), Atlantic coast of America! 

 Behrina: Island! 



