Kovács I. (szerk.): A Magyar Természettudományi Múzeum évkönyve 78. (Budapest 1986)

Farkas, H.: The variability problem of Schuleridea (Aequacytheridea) perforata (Roemer, 1838) (Ostracoda; Eocene)

Evaluation, results Over ten years ago I described my special method of taking measurements and how to depict the results (FARKAS 1974). However, since that contribution is hard to come by, here I think it advisible to publish again my "Techniques of Measurement". The results may simply be read off from the sequence of numbers and the figures, thus, at this place, I only draw attention to the most important factors. The characterisation of the populations is as follows: 1. Many: Within this population variablity is almost entirely absent. The différences between the minimum and maximum values of height is 3% of the total length: As if they were identical twins, i. e. monozygotic, the mm values are almost completely identical in many specimens. 2. Many: The values recorded in mm (the absolute measurements) are larger, consequently this population apparently comprises larger specimens. 3. Many: The ventral Une of the left shell at "lab 20" is higher than in any other measured specimens in the other two populations. 100 90 70 Fig. 1. Schuleridea perforata "mean-line": left shell Annls hist.-nat. Mus. natn. hung., 78, 1986