KONfiL. SV. VRT. AKADEMIKNS IIANDLINC AR. RAND 27. N:() 3. 151 



29. M. affinis Cl. N. Sp. — V. narrow lanceolate. L. 0,035; B. 0,oi mm. Lonuli d in 

 0,0 1 mm., almost equal, with inner margin convex, forming a band reaching to tlie end.s. Stria- 12 

 in 0,01 mm. composed of 4 to 5 elongated puncta. — Diatomi.ste I p. 1(!;J PI. XXIII f. li). 



Marine: (xalapagos Island.s! 



This small species is nearly akin to M. karicina, but has closer loculi and more coarsely 

 punctate stria'. In the shellsand from Norway (Cl. M. B. 311) a similar form occurs frequently 

 without loculi, which may possibly have been destroyed in tlie cleaning processes. 



30. M. karisina Grun. (1880). — V. lanceolate. L. O,!).--),* B. O,oii mm. Central area small, 

 oi4)icular. Loculi 3 in 0,01 mm. larger in the middle, with convex interior margin. Htriai II, f) 

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



Marine: Sea of Kara ((-rrun.). 



31. 0. notata Pant. (1889). — V. elliptical. L. 0,0.35; B. 0,0205 mm. Loculi 6 on each 

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

 PI. 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. floridaiia Cl. (1894). — V. elliptical, rostrate. L. 0,04.3; B. 0,015 mm. Median line 

 straight. Axial area indistinct. Central area small, orbicular. Loculi unequal, the two to four 

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

 reaching nearly to the ends. Strite 14 to 10 in 0,oi mm., very slightly radiate, distinctly punctate; 

 puncta, about 14 in 0,oi mm., forming longitudinal rows. — M. Jioridi'd (name altered by the 

 editor) Diatomiste II p. 55 PI. Ill f. 1. 



Marine: Pensacola (Clrove Coll.)! 



33. M. piisilla Gkun. (1878). — V. narrow, linear-elliptical to lanceolate, rosti-ate. L. 0,o2 

 to 0,0.3.-); B. 0,()()f, mm. Loculi about 7 in 0,01 mm., 7 to IG in each row, the median ones larger. 

 Stria:", 14 to 17 in 0,oi mm. slightly radiate, finely punctate. — M. Sniithii var?. pusiJla Grun. 

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

 PI. II f. 8. 



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



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

 mm. Loculi (! to 9 in 0,oi mm. of ecjual size, quadrate to rectangular, forming a band reaching 

 nearly to the ends. Striae 15 to IG in 0,oi mm. parallel, not interrupted, distinctly punctate. — 

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



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

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



35. M. (Stigmaphora) capltata 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. Striae? 

 — D. especes nouv. p. 45 PI. XI f. 13. 



Marine: Java, parasitical on Bhizosolenia (Brun). 



3G. M. oxigiia Lewis (18G1). — V. fusiform to lanceolate. L. 0,025 to 0,04; B. O,oii mm. 

 Loculi few, 2 to G in the middle of each margin, 4 in 0,oi mm., with somewhat rounded interior 

 edges. Stria^, 20 to 24 in 0,oi mm. slightly radiate. — Proc. Acad. Nat. So. Philad. 18G1 p. G5 

 PI. IT f. 5. V. H. Syn. p. 70 PI. IV f. 25, 2G. A. S. Atl. CLXXXV f. 33. 31. amygdala Leud. 

 FoRTM. I). Malaise p.' 19 PI. II f. 7 (1892). 



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

 Behring Island! 



