Biology of Finfish and Shellfish

4.8.5. Identification keys of isolated pelagic fish eggs

Single oil globule

Non-smooth egg membrane (Ilisha elongata)

Smooth egg membrane

Wide perivitelline space (Japanese sardine)

Narrow perivitelline space (Carangidae, Scombridae)

Non-oil globule

Non-smooth egg membrane (Synodontidae, Callionymidae)

Smooth egg membrane

Wide perivitelline space (Anguilliformes)

Narrow perivitelline space (Engraulidae, Chanidae)

Multi-oil globules

Non-smooth egg membrane (Soleidae, Uranoscopidae)

Smooth egg membrane

Wide perivitelline space (Anguilliformes)

Narrow perivitelline space (Cynoglossidae)

Non-smooth: Sculptures in hexagons and projections