Vervoort A
Experientia. 1979 Apr 15;35(4):479-80. doi: 10.1007/BF01922717.
The diploid DNA content of Pharctolaemus ansorgei spinosus (Phractolaemidae) is estimated by Feulgen cytophotometry at 3 pg. The karyotype has 28 chromosomes and 54 chromosome arms; it significantly resembles the karyotype of Chanos chanos (Chanidae).