O. G. Dely szerk.: Vertebrata Hungarica 2/1-2. (Budapest, 1960)

Berinkey, L.: Ichtyological notes 1 11-18. o.

VERTEBRATA HUNGARICA MUSEI HISTORICO-NATURALIS HUNGARlCl 9m 11 1960. Fase. 1. Ichthyological Notes I. By L. Berinkey Zoological Department of the Hungarian National Museum, Budapest In the present paper,I publish some rare or interesting faunistical data, - resulting from recent collectinge - to make a further step in our knowledge of the fauna of the Danube. Coregonus lavaretus maraena /BLOCH/ The Pishing Cooperative of Vác forwarded an unknown fish to the Museum. It was a Coregonus

. These fish speciee live in Northern and Central Europe, North Asia and North America. When identifying the fish, I found that it belongs to the Coregonua lavaretusgroup and is in all probability its subspecies maraena

. This fish was never yet caught in the Danube. The maraenas excel in their high grade variability, with 92 known forms of the lavaretus-group

. This group is characterised by an inferior mouth, the upper jaw protruding above the lower one. The upper jaw does not extend backwards over the vertical line of the anterior margin of the eyes. The number of the scales of the lateral line varies between 84-100. The number of the raye of the dorsal fin is III-IV. 9-13, that of the anal fin III-IV. 1114. The number of vertebrae is 53-62. There are 16-48 spinae branchiales.