Opisthoteuthis, from Ancient Greek ὄπισθεν (ópisthen), meaning "back", and τευθίς (teuthís), meaning "squid", is a genus of cirrate octopuses, sometimes known as flapjack octopuses, which are found in all the world's oceans.
Behavior Like other cirrates, octopuses in Opisthoteuthis are generally small, and many dwell in the deep sea. They have cirri on their arms, internal shells to support their bodies, and muscular fins for steering. Like octopuses of Grimpoteuthis, opisthoteuthids have been seen resting or crawling on the seafloor.
Species These 25 species have been placed in Opisthoteuthis:
Scientific nameAuthorityIUCN Red List StatusPictureOpisthoteuthis agassiziiVerrill, 1883Opisthoteuthis albatrossi(Sasaki, 1920)Opisthoteuthis borealisCollins, 2005Opisthoteuthis bruuni(Voss, 1982)Opisthoteuthis californianaBerry, 1949Opisthoteuthis calypsoVillanueva, Collins, Sánchez & Voss, 2002Opisthoteuthis carnarvonensis Verhoeff, 2025Opisthoteuthis chathamensisO'Shea, 1999Opisthoteuthis depressaIjima & Ikeda, 1895Opisthoteuthis dongshaensis C. C. Lu, 2010Opisthoteuthis extensaThiele, 1915Opisthoteuthis grimaldii (Joubin, 1903)Opisthoteuthis hardyi Villanueva, Collins, Sánchez & Voss, 2002Opisthoteuthis japonica Taki, 1962Opisthoteuthis kerberosVerhoeff, 2024Opisthoteuthis massyae (Grimpe, 1920)Opisthoteuthis medusoides Thiele, 1915Opisthoteuthis meroO'Shea, 1999Opisthoteuthis persephone Berry, 1918Opisthoteuthis philipiiOommen, 1976Opisthoteuthis pluto Berry, 1918Opisthoteuthis robsoniO'Shea, 1999 Note:
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