Dr. Fűköh Levente szerk.: Malakológiai Tájékoztató 16. (Eger, 1997.)

DÁVID, Á.: Predation by Muricid Gastropods on Late-Oligocene (Egerian) Molluscs Collected from Wind Brickyard, Eger, Hungary

Gastropods of Wind Brickyard belonging into the family Muricidae: Murex paucispinatus T.-ROTH, Chicoreus trigonalis (GABOR), Hexaplex deshayesi (NYST), Hadriana egerensis (GÁBOR), Typhis pungens (SOLANDER in BRANDER), Typhis cuniculosus (NYST). 2. Methods The number of examined specimens is 22. 065. These belong into 189 species. Sampling and washing on a 0,5 mm mesh were the methods of collecting. Beside collecting I have studied the fossil collection of Lóránt Eötvös University, Department of Paleontology, Budapest; Lajos Kossuth University, Department of Geology, Debrecen; Geological Survey of Hungary, Budapest; Mátra Museum, Gyöngyös. The complete shells and identifiable fragments have been inspected for the presence of Muricid drillholes. Tests of bivalves and gastropods showed sign of Muricid prédation. 3. Description The examined specimens are originated from the following layers of the exposure: 1. Molluscan clay, 2. Silty finegrained sandstone, („x" layer), 3. Limonitic sandstone, („k" layer), 4. „c" layer. 3.1. Molluscan clay 5012 specimens of 106 species have been examined. Their distribution according to molluscan classes is the following: Bivalves 38 species 817 specimens, Gastropods 59 species 3440 specimens, Scaphopods 8 species 754 specimens, Cephalopods 1 species 1 specimen. Sign of Muricid prédation have been found on a single bivalve shell, and on a gastropod test. Bivalve Flabellipecten burdigalensis (LAMARCK) 1 0/0/1 Gastropods Theodoxus buekkensis (T.-ROTH) 1 1/0/0 Melanopsis impressa hantkeni HOFMANN 1 1/0/0 Turricula legányii BÁLDI 1 1/0/0 Clavus oligocenicus (NOSZKY) 1 1/0/0