Scientific Name: Hypselodoris nigrolineata
Common Name: Lined hypselodoris

Adult Size: 20 – 50 mm
Depth Range: 5 – 30 m
Biotope / Habitat: Coral reefs and rocky slopes, often near sponges and other sessile invertebrates
Diet: Sponge feeder, using its radula to gently scrape and consume sponge tissue for nourishment and chemical defenses
Reproduction: Hermaphroditic; mates reciprocally, with delicate, coiled egg ribbons laid in protected reef crevices
Fun Fact: Hypselodoris nigrolineata’s elegant white body is accented with fine dark lines running down its back and bright orange gills and rhinophores, creating a classic and timeless reef look.

This graceful nudibranch glides over sponges and rubble slopes, its sleek lines and contrasting colors making it a favorite among divers and underwater photographers.