Etymology regalis – Latin = ‘of or pertaining to a king’ Crinoidea – Greek from krinon – ‘a lily’
They’re not plants – Despite their resemblance to flowers, are not plants. They are echinoderms – animals characterized by their rough, spiny surface and 5 fold symmetry.
They’re not starfish – They are related to starfish in that they are both echinoids. Like starfish, Crinoids usually have 5 fold symmetry.
They eat with their arms – They are filter feeder and they wave their feathery arms which are covered with a sticky mucus to capture food -floating detritus. The feathery arms have growths called pinnules. The pinnules have rows of tube feet on each side of a groove running down the center. The tube feet that cover the arms pass the food to the center where it is put into their mouth.
Crinoids are old… really really old – They have been around since the Ordovician period – 490 million years ago. Paleontologists however, think they could be even older than that.
You’re more likely to find a crinoid fossil than you are living crinoid – Crinoids today are relatively rare however they were once plentiful and diverse. These echinoderms were at their height during the Paleozoic era (544 to 245 million years ago ). They could be found all over the world, creating forests on the floor of the shallow seas of this time period. There were so many in places, that thick limestone beds were formed almost entirely from their body parts piled on top of each other.
Why would anyone get excited about T. rex, when you have crinoids !
Orange cup coral – Tubastraea Coccinea – belongs to a group of corals known as large-polyp stony corals. This non-reef building coral extends beautiful translucent tentacles at night. Tubastraea coccinea is heterotrophic and does not contain zooxanthellae in its tissues as many tropical corals do, allowing it to grow in complete darkness as long as it can capture enough food, namely plankton.
It is nice to see Tabastrea Coccinea in its natural environment. OCC has been introduced to all continents except Antarctica and is thought to compete with native benthic invertebrates for space and to compromise their communities. The reduction of native sponges and native corals could also have significant flow-on effects for entire ecosystems. OCC was introduced in the Caribbean in the late 1930’s or early 1940’s at Curaçao and/or Puerto Rico probably transported by fouled vessels, oil and gas platforms, artificial reef structures, or ballast waters.
Etymology Tubus = tube; +astrea = Astrea – Astraea, daughter of Zeus and Themis, a goddess of justice named after the stars. coccineus = Latin meaning ‘red like a berry’, scarlet.
Porous sea rod – Pseudoplexaura porosa The holes from which the polyps project are large and crowded together, and are arranged spirally up the branches. The polyps overlap each other, each one having eight tentacles. The polyps spread out their tentacles to feed on plankton both day and night. The octocoral has symbionts with zooxanthellae that inhabit the tissues.
The polyps are armed with nematocysts (stinging cells) and can be retracted into the branches defensively. Pseudoplexaura porosa has few predators that feed on it including the flamingo tongue snail, nudibranchs, butterflyfish and some angelfish.
Individual colonies of P. porosa are either male or female. On particular nights about five days after a full moon in summer, mature colonies liberate gametes into the sea. Planula larvae that develop from fertilized eggs sink to the seabed five days later and undergo metamorphosis to found new colonies. These are soon colonized by zooxanthellae and grow by budding of new polyps. Besides growing asexually and reproducing sexually, pieces of this coral may detach from the parent colony and become fixed to substrate to create a new colony. P. porosa can live for several decades, and the greatest cause of mortality is detachment from the seabed during tropical storms
Etymology pseudo – Greek ‘false, lying’ +plex – Latin ‘to plait’ a single length of flexible material made up of three or more interlaced strands; a braid. porosa – Latin porus ‘an opening’
Pink Skunk clownfish – Amphiprion Perideraion The Pink Skunk is the only species of anemonefish to primarily feed on algae.
The magnificent sea anemone – Heteractis Magnifica – has two feeding methods. The first one is through the photosynthesis of its symbiotic zooxanthellae, living in its tissues, the second by capturing its prey with its tentacles that allow it to immobilize its prey (small invertebrates, fry or juvenile fish) See also https://marinebiology.org/2019/01/19/clarks/
Etymology: Amphiprion: Greek, amphi = on both sides + Greek, prion, -onos = saw
Orangutan Crab – Achaeus japonicus “orangutan” comes from the Malay words “orang” (man) and “(h)utan” (forest). Hence, “man of the forest,” and these crabs really seem to look like their Terra-based namesakes. Not only do they resemble Orang-utans with their hair, but they also seem to sway their front legs from side to side in a very good imitation of an this great ape!! It is frequently, but not always, found in association with the bubble coral Plerogyra sinuosa
Etymology: japonicus – Latin, literally ‘Japanese’ The Achaeus – Greek – Ἀχαιοί, were one of the four major tribes into which the people of Classical Greece divided themselves (along with the Aeolians, Ionians and Dorians)
Glossodoris Cincta – Nudibranch Feeds on sponges. When crawling, the gills make vibrating movements. When provoked, it discharges a white fluid from mantle dermal formations – in which they store distasteful chemicals from their food sponges to use defensively.
Etymology Glosso= Greek ‘singular’ + dorís= ‘a nymph’, one of the daughters of Oceanus cinctus= Greek ‘to put a belt around’
Sky Blue Phyllidia Nudibranch – Phyllidia varicosa Probably the most frequently seen tropical Indo-Pacific nudibranchs. The phyllidiids are a group of firm, tough-bodied dorids in which the usual circlet of gills are replaced by leaf like secondary gills under the mantle skirt. It is sometimes called the “scrambled egg nudibranch.” These sea slugs are masters of chemical defense and contain a chemical mucus poisonous to fish and crustaceans. Scientists named it 9-isocyanopupukeane after the dive site, Pupukea, on O`ahu’s north shore. They are capable of killing all life in the aquarium if stressed in any way. They have no known predators.
Etymology Phyllidium, from the Greek phyllos = ‘leaf’ verrucosa = from Greek ‘wart-like’
Ambon Crinoid Shrimp – “Laomenes Amboinensis sp group” Trying to identify which species of shrimp this is has proved to be more difficult then I desired. It has become a field of rabbit holes. Each time thinking that I found it it turn out No. I only have one photo of this fellow. To date, nine valid species are known in this genus and they show a wide diversity of morphological features such as shape of cornea and eyestalk, chelipeds and dactyli of ambulatory pereiopods, coloration and host specificity. Although many underwater photographs of these colorful shrimps are available in guide books, magazines and internet, there are rather few taxonomic reports on the species of this genus and most species only have limited confirmed geographical records. Moreover, it is highly likely that more species are present in Laomenes.
Etymology: In Greek mythology Laomenes is a son of Heracles and Oreia, daughter of Thespius, king of Thespiae, and Megamede; during his hunt for the lion of Cithaeron to free Thespiae from this scourge, Herakles stayed with Thespius for 2 months, as a result all 50 daughters of Thespius and Megamede bore him a son each (except the oldest, who produced twin boys); Laomenes was one of these 51 boys. Ambon Island is part of the Maluku Islands of Indonesia +ensis, Latin denoting origin
This is the true color of the shrimp and the crinoid host. I have decided to name him “Skinny Adam L”.
It is a lighter shade red than Maroon 5.
Jon B, jason B said “for crinoid out loud that is a bad joke”.
Juvenile Warty Frogfish or Clown Frogfish – Antennarius maculatus You can tell a Warty Frogfish from the painted frog fish by the skin being very warty (not so much as still juvenile) and a large triangle patch starting at the eye. The warty frogfish exhibits biofluorescence, that is, when illuminated by blue or ultraviolet light, it re-emits it as red, and appears differently than under white light illumination. Biofluorescence may assist intraspecific communication and camouflage.
Etymology antenna – Latin =’ a sensory appendage on the head’ refering to the fish’s lure, + arius – Latin = ‘pertaining to’ maculatus – Latin = ‘spot, stain’
Shortpouch pygmy pipehorse – Acentronura tentaculata Like a combination of seahorse and pipe fish: their tail is prehensile and used for anchorage, winding itself around pieces of algae or seagrass. However, the front part of the body is typical pipefish, with the head and body held in line rather than bent through and angle like seahorses. There is sexual dimorphism and the males are somewhat larger and more robustly built than the females. Because they are so small, the brood pouch is also large in proportion to the body, giving the males a somewhat more seahorse-like appearance than the females which have the typical slim linear form of pipefishes.
Skeleton Shrimp – Caprellidae family – amphipods. Females carry large number of transparent eggs inside the brood pouch (located on her abdomen) until they hatch.
Pookey the pygmy pipehorse gathers his skeleton shrimp friends around to retell the great story of the day that Jon descended down from the waters above. Jon was dressed in a dark fake skin that was stretched very tight. Attached to each of his rear appendages were awkward rubber fins. His blue eyes were concealed behind a layer glass. A great hissing sound followed by a rumble of bubbles escaped from around Jon's mouth in a rhythmic pattern. Hssssss blublublublublublub Hsssssss blublublublublublub! He carried in front of him a great contraption that flashed a very bright light from the orbs at the end each of its antennas - one on each side of a single unblinking eye. Jon stayed only a few moments peering into this contraption and pointing that mysterious eye to and fro. FLASH Hssssss blublublublublublub…..FLASH Hssssss blublublublublublub. FLASH Hssssss blublublublublublub. Then, Jon swam off at a great speed. It was indeed a marvelous day.