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Actinocyclus Ehrenbergii Ralfs (Pritch. Inf. pag. 834) large
and fine specimens.
Asteromphalus flabéllatus Bréb. (A. Sclim. Atl. Pl. XXXVIIL
fig. 10—12).
A. impar Shadb. (T. M. S. 154, pag. 17, Pl. I, fig. 17).
V. Diatoms from Ceylon.
During the stay of the Vega at Point de Galle Dr. Kjellman
made some collections of marine algae. On cleaning them lie
collected the washing a water deposits, which were given to
me for examination. Also some samples of marine coarse
mud were taken and sent to me. The latter ware very poor
in diatoms, but the first named deposit tolerably rich. On
the marine diatoms of Ceylon we have by Dr. Leuduger -
Fortmorel an elaborate paper, containing descriptions of
• *.
many new forms \ The samples collected by Dr. Kjellman
contained scarcely any of the species described by Dr.
Leuduger-Fortmorel, but a lot of forms not recorded in the named paper.
The collection of Dr. Kjellman completes in a welcome manner
the number of marine species, known from Ceylon. I think
it will be most convenient to enumerate the forms, contained
in the samples from the Vega-Expedition, in the same order as
in the paper of Dr. Leuduger-Fortmorel. I have added a :it
to each species not found by Dr. Leuduger-Fortmorel.
Cocconeis Scutéllum Ehb. (Van Heurck Syn. Pl. XXIX, fig.
1—12).
* C. heteroidea Hantzch (Ost. Ind. Arch. pag. 21, fig. 10).
* C. pseudoniarginata Greg. (D. of Cl. pag. 492, Pl. IX, fig.
29, C. major 1. c. pag. 28).
* C. pellucida Grun. (Hantzch Ost. Arch. D. pag. 21, fig. 11).
* Orthoneis fimbriata (Btw.) Grun. (Mastogloia cribrosa Grun.
p. p. Trans. M. S. VII, pag. 179, Pl. IX, fig. 3).
* Campyloneis Grevillei (W. Sm.) Grun. V. H. Syn. Pl.
XXVIII, fig. 10—12).
* Achnanthes javanka Grun. (A. D. pag. 18).
* A. bengalensis Grun. (1. c.).
A. pennata Grev. — One single valve of an Achnanthes*
which I believe belongs to A. pennata, was found in the
Ceylon-material, but having had no occasion to see the fig.
1 Catalogue des Diatomées de l’ile de Ceylan. Mémoires de la Société
d Émulation des Cötes du Nord. 1879.
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