490 CLEVE, DIATOMS. 
M. (mediterranea Grun. var.?) gelida Cl. — Surface of the 
valve covered near the margin with puncta arranged in curved 
lines crossing each other, about 25 in 0,01 mm. Diam 0,02 
—0,o3 mm. Pl. 38, fig. 83 a. b. — Mushroom Point. 
M. ornata Grun. (Van Heurck Syn. XCI, fig. 19—21) F. J. L. 
M. Borreri Grev. (Van Heurck Syn. Pl. LXXXV, fig. 5—7) 
Greenl., Bessel's Bay. 
II. Surface-diatoms from the Behring Sea. 
Dr. Kjellman has collected in the Behring Sea diatoms 
living on the surface. The gathering contained: 
Thalassiothrix longissima OM. & Grun. in great abundance. 
Coscinodiscus borealis Bail. (A. Schm. Atl. LXIII, fig. 11). 
Endietya oceanica Ehb. 
Chetoceros atlanticus Ol. 
Rluizosolemia styliformis Btw. 
Eh. hebeta Bail. 
III. Fresh-water diatoms from Japan. 
In Japan Dr. Kjellman made some gatherings of fresh-water 
diatoms, interesting because most of the species were perfectly 
identical with European ones. I have observed the following 
species, of which the greater part has been determined with 
the aid of Van Heurck's synopsis: 
Amphora affinis Kätz. | 
Cymbella cuspidata Kätz. Length 0,092. Breadth 0,024 mm. 
Strie 10 in the middle, 12 near the ends. 
C. affinis Kätz. 
!. gastroides Kätz. 
C. cymbiformis Ehb. 
C. Cistula Hempr. 
C. tumida Bréb. 
Eucyonema cespitosum Kätz. 
Epithemia gibba (Ehb.). 
E. gibberula Kätz. 
NA 
