| Allopontonia brockii | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Malacostraca |
| Order: | Decapoda |
| Infraorder: | Caridea |
| Family: | Palaemonidae |
| Genus: | Allopontonia |
| Species: | A. brockii |
| Binomial name | |
| Allopontonia brockii (de Man, 1888) | |
| Synonyms [1] | |
| |
Allopontonia brockii is a small commensal shrimp in the family Palaemonidae.
This species of shrimp can be easily confused with Allogalathea elegans (crinoid squat lobster) due to its long chelipeds, the visible shape of its cephalothorax, its abdomen slightly curved under the body and by its colours. However, Allopontonia brockii differs in several points from Allogalathea elegans:
Allopontonia brockii is widespread through the Indo-Pacific, Red Sea included, and the eastern coast of the Pacific Ocean. [1]
Allopontonia brockii is considered as a commensal species from different species of sea urchins like some of the genus Salmaciella , Salmacis , Asthenosoma or Pseudoboletiana . [3] However, Allopontonia brockii can usually be observed on Asthenosoma varium (fire sea urchin). [2] Allopontonia brockii takes advantage of its host when it moves on the substratum to collect its food during the way and also takes benefit of the potential food which can hang onto the sea urchin.
The pea crab, Pinnotheres pisum, is a small crab in the family Pinnotheridae that lives as a parasite in oysters, clams, mussels, and other species of bivalves.
Astropyga radiata, the red urchin, fire urchin, false fire urchin or blue-spotted urchin, is a species of sea urchin in the family Diadematidae. It is a large species with long spines and is found in the tropical Indo-Pacific region. It was first described in 1778 by the German naturalist Nathaniel Gottfried Leske.
Ancylomenes magnificus, also known as the magnificent anemone shrimp, is a species of cleaner shrimp common to the Western Pacific Ocean at depths of 3–29 metres (10–95 ft). They are commonly found on stony coral, Catalaphyllia and the sea anemone, Dofleinia armata.
Diademichthys lineatus, commonly known as the long-snout clingfish or urchin clingfish, is a species of marine fish in the family Gobiesocidae.
Heterocentrotus mamillatus, commonly known as the slate pencil urchin, red slate pencil urchin, or red pencil urchin, is a species of tropical sea urchin from the Indo-Pacific region.
Allogalathea elegans is a species of squat lobster that is sometimes kept in marine aquariums. Despite their common name, they are more closely related to hermit crabs than lobsters.
Toxopneustes pileolus, commonly known as the flower urchin, is a widespread and commonly encountered species of sea urchin from the Indo-West Pacific. It is considered highly dangerous, as it is capable of delivering extremely painful and medically significant stings when touched. It inhabits coral reefs, seagrass beds, and rocky or sandy environments at depths of up to 90 m (295 ft). It feeds on algae, bryozoans, and organic detritus.
Echinometra mathaei, the burrowing urchin, is a species of sea urchin in the family Echinometridae. It occurs in shallow waters in the Indo-Pacific region. The type locality is Mauritius.
Asthenosoma marisrubri aka Red Sea fire urchin and toxic leather sea urchin , is a relatively common sea urchin with a widespread distribution in the Indo-Pacific, and was till 1998 considered a color variant of Asthenosoma varium. Sea urchins are close relatives of starfish, crinoids, brittle stars and sea cucumbers, all being echinoderms.
Alpheus deuteropus or the petroglyph shrimp is a snapper or pistol shrimp in the family Alpheidae. It lives on coral reefs in tropical parts of the Indian and Pacific Oceans and in the Red Sea, as a commensal of corals such as Porites lobata. Its presence among the lobes leaves tunnels, cracks and grooves in the surface.
Asthenosoma varium is a sea urchin. Growing up to 25 cm (10 in) in diameter, it lives on sand and rubble sea bottoms in the Indo-Pacific, from the Red Sea to Australia and Southern Japan. Its venom tipped spines, with distinctive globular swellings below the tip, can inflict a painful sting if handled; the pain lasts as long as several hours. This capacity, perhaps coupled with its reddish-brown colour, has given it the common name fire urchin; other commonly used names are Pacific fire urchin, elusive sea urchin, variable fire urchin, and electric sea urchin.
Rhynchocinetes durbanensis, commonly known as the camel shrimp and the hingebeak prawn, is a species of shrimp found in the Indo-Pacific. Up to 4 cm (1.6 in) in length, the shrimp has large black eyes, and features red and white lines on a translucent body. It has many white ocelli (spots) as well as a Y-shaped white mark on the upper front part of its carapace. It is strongly sexually dimorphic, and dominant males have larger first pair of chelipeds. The shrimp is found in hollows and crevices from 5 to 35 metres deep, where it forms groups consisting of dozens of individuals. One study determined that the ovigerous females carry from 267 to 1764 eggs, and the eggs take 9 days to hatch after spawning at a temperature of 29.2 °C (84.6 °F), or 18 days when the temperature is under 22.0 °C (71.6 °F). R. durbanensis has been frequently confused with R. uritai, and also closely resembles R. brucei. R. durbanensis was first described scientifically by Isabella Gordon in 1936.
Allopontonia is a genus of shrimp in the family Palaemonidae, containing two species:
Ancylomenes venustus, also known as the graceful anemone shrimp, is a species of shrimp which belongs to the family of the Palaemonidae. This species is found in the tropical waters from the centre of the Indo-Pacific biogeographical area. A. venustus lives in association with scleractinians and actiniarians and is a cleaner shrimp.
Calliasmata pholidota is a shrimp of the family Hippolytidae. It is thought C. pholidota is an opportunistic feeder, taking live prey or scavenging for food.
Ancylomenes holthuisi is a species of marine shrimp in the family Palaemonidae. It was first described in 1969 by A.J. Bruce as Periclimenes holthuisi.
The Echinothuriidae are a family of sea urchins in the order Echinothurioida. Due to their soft skeletons, most are called "leather urchins", but species in the genus Asthenosoma are also known as "fire urchins" due to their bright colors and painful, venomous sting.
Ogyrididae is a family of decapod crustaceans consisting of 10 species.
Periclimenes, commonly known as glass shrimp or cleaner shrimp, is a commensal and often symbiotic genus of semi-transparent shrimp within the family Palaemonidae. Species of this large genus feature a wide variety of coloration and patterns, widespread distribution throughout much of the world's tropical oceans, and are often sought out for aquarium trade.