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Within the mantle cavity there are three visceral photophores, an oval, anal photophore, a posterior intestinal photophore and an elongated posterior visceral photophore which forms a strip. [4] It has a broad head which is at least as wide as the mantle and there is an elongated photophore patch on the ventral surface of both eyes. [3]
The mantle is cup-shaped and elongates considerably in females when they mature. The fins are a third to a half the length of the mantle and roughly half its width. The ventral (under) surface of the mantle has a complex arrangement of large and small compound light-emitting photophores , and seventeen large and one small photophore surround ...
Bathothauma lyromma is an atypical glass squid which has very large paralarva which can reach a mantle length of 100mm and has its eyes mounted on a long stalk possesses and a very long brachial pillar. Both these features are reabsorbed as the paralarva matures into a subadult. As an adult it grows to a mantle length of 200mm.
The squid grow up to an impressive 1.6 feet (counting the mantle, not the tentacles), all within a lifespan of six months to a year. Once they reproduce, they die. Once they reproduce, they die.
Chiroteuthis imperator. The Chiroteuthidae are most notable for their unique paralarval stage, known as the doratopsis [2] stage. Although morphology varies greatly within the family, the Chiroteuthidae are distinguished by their extremely elongated bodies and (in most species) tentacles; the latter may be up to four times the mantle length in Asperoteuthis acanthoderma.
Taningia danae, the Dana octopus squid, is a species of squid in the family Octopoteuthidae. It is one of the largest known squid species, reaching a mantle length of 1.7 m (5.6 ft) [3] and total length of 2.3 m (7.5 ft). [4] The largest known specimen, a mature female, weighed 161.4 kg (356 lb). [5]
Loligo reynaudii is a marine cephalopod characterized by its elongated slender body, eight short arms, and two long retractile tentacles adorned with suckers. With diamond-shaped fins spanning over half the length of its up to 40 cm (16 in) mantle, this species exhibits distinctive features.
The mantle is conical and elongated with a narrow rear tip. The mantle walls are thin and leathery. The funnel locking-apparatus are small and oval to spindle-shaped. A single cartilaginous tubercle is present at the mantle margins, though rarely it may be absent. The fins are long and narrow, starting at about 40 to 60% of the length of the ...