Styela angularis

Michaelsen, W. 1934
Phylum Chordata
Class Ascidiacea
Order Stolidobranchia
Family Styelidae
  • Slender solitary club shaped ascidian with firm cream brown tunic decreasing in diameter to the attachment area.
  • Body hexagonal in cross-section with branchial and atrial siphon open on upper surface close together.
  • Branchial sac with longitudinal vessels forming meshes with 2-5 stigmata.
  • Two long gonads are present on each side containing ova flanked by and testis on both sides.
  • Endocarps are present on the body wall between the gonads.
© 2013 Tim Parker-Nance 2013-07-03 177.JPG © 2015 Shirley Parker-Nance 2015-03-22 Shark Alley 029 cropped.jpg

  • Millar, R. H. 1962 Further descriptions of South African ascidians56:113-221
  • Monniot, C.; Monniot, F.; Griffiths, C. and Schleyer, M. 2001 Ascidians of South Africa.108:1-141
  • Shenkar, N.; Gittenberger, A.; Ruis, M.; Rocha, R. M.; Swalla, B.; et al. 2017 Ascidiacea World Database. Atriolum marinense Kott, 2001. Accessed through: World Register of Marine Species at: on 2019-03-12