Florent's Guide To The

Tropical Reefs

Swallowtail Headshield Slugs
Chelidonura hirundinina
Swallowtail Headshield Slugs
Also known as: Leech Aglaja, Blue Swallowtails Slug
Category: Headshield Slugs
Scientific Name: Chelidonura hirundinina
Size: Up to 1 in. (2.5 cm)  
Depth: 3-60 ft. (1-18 m)
Distribution: Caribbean, Florida, Hawaii, Indo-West Pacific
Mollusca (Phylum)
└Gastropoda (Class)
 └Heterobranchia (Subclass)
  └Euthyneura (Infraclass)
   └Cephalaspidea (Order)
    └Aglajidae (Family)
     └Chelidonura (Genus)

Sea Slugs
Headshield Slugs

Swallowtail Headshield Slugs

Swallowtail Headshield Slugs (color variation)

Headband Headshield Slug

Black Aglaja

Gardiner's Headshield Slug

Pilsbry's Headshield Slug

Lovely Headshield Slug



All Photographs
© 2025 Florent Charpin