Humboldt squid squid uses its barbed tentacle suckers to grab its prey and slices and tears the victim's flesh with its beak and radula. They often approach prey quickly with all 10 appendages extended forward in a cone-like shape. Upon reaching striking distance, they open their eight swimming and grasping arms, and extend two long tentacles covered in sharp 'teeth', grabbing their prey and pulling it back towards a parrot-like beak, which can easily cause serious lacerations to human flesh. These two longer tentacles can reach full length, grab prey, and retract so fast that almost the entire event happens in one
Bathyteuthis abyssicola without free trabeculae (beam- or finger-like protuberances). Suckers are relatively few in number, about 100 on each of the upper six arms (pairs I–III). Sucker rings on the arms have 8–18 separated, bluntly rounded to truncate protuberances. The tentacles and clubs are relatively short. Gills are short and narrow. They have large photosensitive vesicles just behind the eyes which appear to detect bioluminescence. These photosensitive vesicles are among the largest known in any cephalopod. Bathyteuthis abyssicola Bathyteuthis abyssicola, also known as the deepsea squid, is a species of squid in the family Bathyteuthidae. "Bathyteuthis abyssicola" is the type species of