833 |
Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. |
Styela sigma |
|
2258 |
Monniot, F. and C. Monniot 2003 Asicidies de la pente externe et bathyales de l'ouest Pacifique. |
Styela sigma |
715-717 |
3382 |
Sanamyan, K.E. and N.P. Sanamyan 2006 Deep-water ascidians (Tunicata: Ascidiacea) from the northern and western Pacific. |
Styela sigma |
319-321 |
3477 |
MarineSpecies.org 2050 MarineSpecies.org. |
Styela sigma |
|
3705 |
Tokioka, T. 1963 Contributions to Japanese Ascidian fauna. XX. The outline of Japanese ascidian fauna as compared with that of the Pacific Coasts of North America. |
Styela sigma |
|