504 CLEVER DIATOMS. 



Actinocyclas Ehrenhergil Ralfs (Pritch. Inf. pag. 834) large- 

 and fine specimens. 



Aster oniphal US flahellatus Breb. (A. Schm. Atl. PL XXXVIII., 

 fig. 10—12). 



A. impar Shadb. (T. M. S. 154, pag. 17, PI. I, fig. 17). 



V. Diatoms from Ceylon. 



During the stay of the Vega at Point de Galle Dr. KjeHman 

 made some collections of marine algae. On cleaning them he^ 

 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. Kj ell man 

 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 ^' 

 to each species not found by Dr. Leuduger-Fortmorel. 



Cocconeis Scutelhim Ebb. (Van Heurck Syn. PI. XXIX, fig.. 

 1—12). 



* C. heteroidea Hantzch (Ost. Ind. Arch. pag. 21, fig. 10).. 



* C. pseudomarginata Greg. (D. of CI. pag. 492, PI. IX, fig. 

 29, C. major 1. c. pag. 28). 



* C. pellucida Grun. (Hantzch Ost. Arch. D. pag. 21, fig. 11).. 



* Orthoneis fimhriata (Btw.) Grun. (Mastogloia cribrosa Grun.. 

 p. p. Trans. M. S. VII, pag. 179, PI. IX, fig. 3). 



'^ Campyloneis Greoillei (W. Sm.) Grun. V. H. Syn. Ph 

 XXVIII, fig. 10—12). 



* Achnanthes javanica Grun. (A. D. pag. 18). 



* A. hengalensis Grun. (1. c). 



A. pennafa 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. 



' Catalogue des Diatomees de Tile de Ceylan. M^moires de la Soci^te 

 d'Einulation des Cotes du Nord. 1879. 



