Karyotypes of Two Species in the Dentaliidae (Mollusca : Scaphopoda)

Abstract

The chromosomes of Dentalium octangulatum and Fissidentalium (Pictodentalium) vernedei were studied. Chromosome numbers and karyotypes of these species were as follows : D. octangulatum (2 n=20) : 6 m+14t, NF=26 F. (P.) vernedei (2 n=20) : 8 m-sm+12 t, NF=28