Squarenose Helmetfish

Jewel Squid

Histioteuthis heteropsis

The Jewel Squid is covered in color-changing photophores that resemble sparkling gem stones. They also have a light-red coloration and are about 20 cm in length. They display a unique behavioral adaptation called diel migration. During the day, they stay at depths around 400-1200 m, and then surface during night (0-400m). This behavioral pattern is designed maximize feeding at night, and avoid predators during the day. The primary predator of the Jewel Squid is the Sperm Whale.    

Photo credit: https://www.pinterest.com/pin/722827808920240115/

https://twitter.com/theoctonation/status/1168516522270253056

Pram Bug

Phronima sedentaria

The Pram Bug is a deep sea amphipod that is located between 200 to 1000m in the ocean. It has a translucent exoskeleton and can see primarily blue light. It is also is contained in a hollowed out barrel that is used for protection and to house babies. The image above is a female pram bug carrying its young. 

Photo Credit:https://ocean.si.edu/ocean-life/invertebrates/phronima-female-and-young

Periphyllopsis braueri

The  Periphyllopsis braueri is a tiny, deep sea jellyfish that is only 6 cm in diameter. It is red-chocolate  in color, and it has eight gonads. Furthermore, it is found at depths between 600m to 1000m. 

Photo credit: https://oceanexplorer.noaa.gov/explorations/19gulfofalaska/logs/aug2/aug2.html

Fangtooth

Anoplogaster cornuta

The Fangtooth is a ferocious predator that is found at depths between 600 m to 5000 m. It has large, needle like teeth that are used to catch prey. It also has extremely sensitive sensory canals underneath of its scales used to detect movement in the water. Furthermore, their preferred prey are crustaceans and fish. 

Photo credit: https://pixels.com/featured/fangtooth-fish-dant-fenolio.html

https://www.pinterest.com/pin/845902742487789950/

https://www.newscientist.com/article/mg23231020-400-up-close-with-the-giant-teeth-of-the-deepsea-fangtooth/

Deep-sea white anglerfish

Haplophryne mollis

The Deep-sea white anglerfish is a ghostly white creature found at depths between 1000m to 4000m. The strange bulge between its eyes is a bioluminescent lure. The main fish above is a female and the tiny fish attached to her body are males. Since it is difficult to find mates in the deep ocean, male fish latch onto the female with hooked teeth. Even though the male fish are parasitic, they are eventually reduced to pockets of sperm that are used for reproduction. For all you fellas out there that have a rough time with the ladies, be thankful that you are at least not a bag of gonads floating through the ocean. 

Photo credit: https://www.pinterest.co.uk/pin/440297301041956897/

https://news.cgtn.com/news/3d3d414d3559444f7a457a6333566d54/share_p.html

Cockatoo Squid

Galiteuthis phyllura

The Cockatoo squid is a highly-specialized oddity of the deep ocean and found at depths between 300 to 1400 m. It is completely transparent, except for its eyes. It also has bioluminescent photophores that are directed downward: this makes it difficult for deep sea predators to see the Cockatoo Squid. It was named after the Cockatoo because it holds its tentacles above its head, resembling the bird. The Cockatoo squid can also get fairly large with adults reaching lengths of 2.7 meters (over 6 ft.) 

Photocredit: https://www.americanscientist.org/article/at-home-in-the-dark

https://www.pinterest.com/pin/28710516347382519/

Threadfin Snailfish

Careproctus longifilis

The Threadfin Snailfish resembles a prehistoric tadpole that is ghostly white. The holes in its face are large sensory pores that help them detect changes in the ocean. It is often found at depths between 1900 to 2997 meters. 

Photo credit: https://www.timeout.com/singapore/museums/creatures-of-the-deep

Googly-eyed glass squid

Teuthowenia pellucida

The Googly eyed squid is a rare oddity that is found in the southern hemisphere. It has a large, spherical head that is filled with water and teeny, tiny tentacles that help propel it through the water. If it comes across a predator, it deflates its head and draws its tentacles into its cavity. On the other hand, it may also fill the cavity with water to increase its size, and intimidate the predator. If all fails, it will ink and try to escape through the darkness. Furthermore, baby squids can be found at the surface (0-600m); then slowly migrate downwards as they mature into adults (1600-2500m). 

Photo credit: http://animaladay.blogspot.com/2011/07/googly-eyed-glass-squid.html

https://faunafabula.tumblr.com/post/5999675353/googly-eyed-glass-squid-teuthowenia-pellucida

Blacksnout Seasnail

Paralipparis copei copei

The Blacksnout Seasnail may not look like a snail, but it does have a slimy, gelatinous substance that covers its body. It can be found at depths between 200 m to 1692 m, and adults grow up to be 17 cm in size (approximately 6.5 in). It also has an elongated body that resembles an eel. Furthermore, it can be seen rolling itself in a loop; this behavior is a defensive posture that makes it appear like a jelly. In the darkness, predators tend to avoid the Blacksnout Seasnail because its often mistaken as a hunter due to its appearance and behavior.

Pink Helmet

Aglantha digitale

The Pink Helmet is a mini hydromedusa that comes in a variety of vibrant colors. The tiny jelly is only 4 cm in size and is found towards the surface of the ocean. The purple and blue hues we see in its bell are caused by a phenomenon known as iridescence, when light strikes the jelly’s thin tissue at different angles  (similar to what we see in a soap bubbles). It also has orange pigmentation near its mouth; this pigmentation helps attract prey and mask luminescence. Furthermore, females tend to be more colorful than males.

Photo  credit:    https://biolum.eemb.ucsb.edu/organism/pictures/aglantha.html

 https://www.pinterest.com/pin/186899453255850798/