Table 2.
Parity | Mode | Pentanchidae | Scyliorhinidae | |||||
---|---|---|---|---|---|---|---|---|
Apristurus, Asymbolus, Figaro, Haploblepharus, Holohalaelurus, Parmaturus | Bythaelurus | Galeus | Halaelurus | Cephalurus | Atelomycterus, Poroderma, Scyliorhinus, Schroederichthys | Cephaloscyllium | ||
Oviparitya | Short single | ⦿ | ⦿ | ⦿ | ○ | ○ | ⦿ | ⦿ |
Sustained single | ○ | ○ | ⦿ | |||||
Multiple | ⦿ | ⦿ | ||||||
Yolk sac viviparity | Single pregnancy | ⦿ | ⦿ | |||||
Multiple pregnancy | ⦿ |
⦿Actual mode, ○ possible ancestral or transitional mode.
aOviparous Aulohalaelurus in the Scyliorhinidae is not included, because the mode is unknown.