ZOOLOGY AND BOTANY, MICKOSCOPY, ETC. 635 



mination, and his description of a new species, Nitzschia prod acta-, is 

 included. 



Fossil Diatoms.* — H. Reichelt describes the result of his researches 

 into the diatomaceous deposits of Bachseldorf, Zantig and Sulloditz. 

 The first of these is characterised by the presence of Melosira distorts 

 Ehr., together with M. undulata, M. granulata, Gomphopleura nobilis, 

 &c. The second contains mostly Melosira distans, often in the 

 auxospore condition. The third abounds in specimens of Melosira 

 cremdata, M. undulata, and' Tetracyclics ellipticus. Among the 1G species 

 recorded, 3 are new : Melosira Hibschii, Navicula Hermannii, and 

 Gomphopleura nobilis. 



J. Pantocsek | describes and figures certain fossil diatoms from the 

 andesite tufa near Szliacs. The formation is characterised by a new 

 genus Szechenia, different species of Eunotia, Navicula arata Clrun., 

 N. Haueri Grun., Cocconeis Boryana Pant., and Melosira undulata 

 Kiitz. The last species has also been found in other Hungarian deposits 

 as well as living in fresh water in the island of Java ; thus demon- 

 strating the similarity which exists between the flora of that period and 

 that of the islands of Sunda at this day. Thirty-eight species and 

 varieties are figured, including Scmseya hungarica Pant., and Disiphonia 

 hwv/arica Pant. 



H. Heiden X has examined diatoms from deposits of Warnemlinde 

 harbour, and from the Convent Lake. In the former are to be found 

 many marine species allied to those at present flourishing in SDuthern 

 seas. Three fresh-water species are also recorded. An examination of 

 the Convent Lake deposits shows an entirely different flora from that of 

 Warneniunde Harbour. In all 308 forms are recorded in this paper, 

 the most interesting of which are followed by notes on their geographical 

 distribution. The respective occurrences of forms in the different 

 samples is also given. One new species is described : Navicula Ros- 

 tockiensis. 



Diatom Records. § — K. H. Philip records the existence of Surirella 

 meilulica Per. in fresh water at Hotham Carrs near Hull. It is a 

 brackish-water diatom previously recorded from Medoc in the south, 

 of France. It may be a survival from some remote marine flood more 

 than a century ago. 



Or. B. De Toni and A. Forti |] enumerate 24 species from Lake 

 Ngebel, in Java, of which eight are new records for the island. 



Egregia Menziesii.1T — F. Ramaley has made a study of this alga 

 and publishes the results under the following headings : — Distribution ; 

 External Morphology, in which the various parts of the plant are 

 treated separately and in detail ; Comparison with other Laminariaceas ; 

 Anatomy, also treated in detail. The author considers that the morpho- 

 logy of Egregia is best understood if considered as an Alaria with 



* Ber. Naturforsch. Ges. Leipzig. 1897-1900. See also Nuov. Notar., xiv. (190:5) 

 p. 121. t Nuov. Notar., I.e. p. 127. 



% Mitth. v. d. Gr. Mecklenib. Geolog. Landesanstalt, 1902. See also Nuov. Notar 

 I.e. pp. 123, 124. § Naturalist, 1903, p. 256 (figs, in text). 



|| Bull. Soc. Bot. Ital., 1903. pp. 133-41. 



*I Minnesota Bot. Studies, iii. (1903) pp. 1-9 (4 pLs.). 



