OMIA:000890-9793 : Schistosomus reflexus in Equus asinus (ass (donkey))

In other species: horse , taurine cattle , goat , sheep , water buffalo

Categories: Embryo phene

Mendelian trait/disorder: unknown

Considered a defect: yes

Cross-species summary: A foetus in which the edges of the somatic disc in the developing embryo have curved upwards instead of downwards, resulting in the viscera floating free in the amnion. The head and the tail are curved up towards each other. Dystocia is the usual result. Also called schistosoma reflexum.

Cite this entry

Nicholas, F. W., Tammen, I., & Sydney Informatics Hub. (2011). OMIA:000890-9793: Online Mendelian Inheritance in Animals (OMIA) [dataset].


1990 Dubbin, E.S., Welker, F.H., Veit, H.P., Modransky, P.D., Talley, M.R. :
Dystocia attributable to a fetal monster resembling schistosomus reflexus in a donkey. J Am Vet Med Assoc 197:605-7, 1990. Pubmed reference: 2211309.

Edit History

  • Created by Frank Nicholas on 02 Nov 2011
  • Changed by Frank Nicholas on 02 Nov 2011