The hooktooth dogfish (Aculeola nigra) is… an interesting looking shark. With a blunt, flattened snout and very large eyes as you can tell from the picture it isn’t what some would call “beautiful” or “handsome.” They have small, grooved spines on their dorsal fins, and have a broad caudal fin.
Hooktooth dogfish are found in the eastern South Pacific along the coast of South America from Peru to central Chile. You can usually observe these animals between 110 – 560 metres deep. They are rather small, with a maximum length of only 60 cm, and tend to be a dark black colour. Although they are common, this dogfish is the only member of the genus Aculeola and little is known about it.
Their diet is probably made up of bony (teleost) fish and invertebrates. An viviparous with yolk-sac animal, their litters have at least three pups. Gestation period is unknown.
#Finfact: There is a type specimen is held at the National Natural History Museum, Santiago, Chile.
want to learn more about these jawsome animals? so do we!
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TFUI Founder Melissa C. Marquez is author of all animal bios and "Behind the Fins" segments.
SEE MELISSA'S TEDx TALK HERE:
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