Volonjke
| Volonjke | |
|---|---|
 Hexanchus griseus | |
| Sistematika | |
| Carstvo: | Animalia |
| Koljeno: | Chordata |
| Razred: | Elasmobranchii |
| Nadred: | Selachimorpha |
| Red: | Hexanchiformes F.de Buen, 1926 |
| Baze podataka | |
Volonjke (Hexanchiformes), red morskih pasa koji žive na velikim morskim dubinama ili pri samom dnu. Sastoji se od dvije porodice, to su volonje (Hexanchidae) i Chlamydoselachidae.[1] Karakteristika im je da imaju zmijoliko tijelo, i po 6 ili 7 škržnih otvora
U Jadranu su prisutne dvije vrste, Hexanchus griseus, poznat pod narodnim nazivima Volonja sivac, šestroškrg i glavonja, i Heptranchias perlo, Volonja pepeljak ili sedmoškrg.
Godine 2007. otkrivena je vrsta naborani morski pas, za koju se smatralo da je izumrla, a živjeli su još prije 80 milijuna godina.
Izvori
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