| Glycera sheikhmujibi | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Annelida |
| Clade: | Pleistoannelida |
| Subclass: | Errantia |
| Order: | Phyllodocida |
| Family: | Glyceridae |
| Genus: | Glycera |
| Species: | G. sheikhmujibi |
| Binomial name | |
| Glycera sheikhmujibi Hossain & Hutchings, 2020 | |
Glycera sheikhmujibi is a species of polychaete worm. [1] This small worm is tubular and light pink in color.
It was described by Md. Belal Hossain, an associate professor and researcher of the department of Fisheries and Marine Science, Noakhali University of Science and Technology. [2] Dr. Pat Hatchings, a scientist of the Australian Museum Research Institute, was his research partner. It is named after Sheikh Mujibur Rahman, the first president of Bangladesh and one of the most influential political figures of the Indian subcontinent. [3]
Glycera sheikhmujibi is 42 mm in length. It has a total of 158 segments and is 2.2 mm width in the middle of the body. One of its identifying features is the elongated bell-shaped suction mouth. The mouth is covered with papillae and its shape is cylindrical, but flexible. This animal has no eyes. On its periphery, the sucker has four jaws and they are look like black hook. Two pairs of suckers with three papillae are attached to the laren, which are strong and triangular in shape. In addition, its middle of the body has finger-shaped lobes which are equal. [2]
Glycera sheikhmujibi is known to inhabit the bottoms of muddy reservoir in estuary of Meghna River, near Hatiya Island. [2]
True squid are molluscs with an elongated soft body, large eyes, eight arms, and two tentacles in the superorder Decapodiformes, though many other molluscs within the broader Neocoleoidea are also called squid despite not strictly fitting these criteria. Like all other cephalopods, squid have a distinct head, bilateral symmetry, and a mantle. They are mainly soft-bodied, like octopuses, but have a small internal skeleton in the form of a rod-like gladius or pen, made of chitin.
Sea cucumbers are echinoderms from the class Holothuroidea. They are marine animals with a leathery skin and an elongated body containing a single, branched gonad. Sea cucumbers are found on the sea floor worldwide. The number of holothurian species worldwide is about 1,717, with the greatest number being in the Asia-Pacific region. Many of these are gathered for human consumption and some species are cultivated in aquaculture systems. The harvested product is variously referred to as trepang, namako, bêche-de-mer, or balate. Sea cucumbers serve a useful role in the marine ecosystem as they help recycle nutrients, breaking down detritus and other organic matter, after which bacteria can continue the decomposition process.
The genus Glycera is a group of polychaetes commonly known as bloodworms. They are typically found on the bottom of shallow marine waters, and some species can grow up to 35 cm (14 in) in length.
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Holothuria forskali, the black sea cucumber or cotton-spinner, is a species of sea cucumber in the family Holothuriidae. It is found at shallow depths in the eastern Atlantic Ocean and the Mediterranean Sea. It was placed in the subgenus Panningothuria by Rowe in 1969 and is the typetaxon of the subgenus.
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Loliolus is a genus of squid from the family Loliginidae from the Indo-Pacific region. The genus is divided into two subgenera Loliolus and Nipponololigo. They are small squids of less than 150mm in mantle length which have an expanded tentacular club. This club has 4 series of suckers. The sucker rings have plate-like teeth which are square in shape all around them. The males' hectocotylus has a ventral crest which is created by the fusion of the protective membrane with the ventral series of papillae and this crest completely obscures the conical shape of the papillae. The mantle is rounded posteriorly and lacks the posterior tail-like lobe while the fins are positioned on the rear of the mantle and extend to the posterior tip of the mantle. Their eggs are small and the males' spermatophore has a short cement body. They do not possess photophores. The two subgenera are distinguished by the hectocotylus which in Loliolus encompasses the entire arm and there are no unmodified suckers while in Nipponololigo the arm is only partly hectocotylsed and has normal suckers at its base.
Phascolosoma granulatum is a species of peanut worm in the family Phascolosomatidae. It is found in shallow water in the northeastern Atlantic Ocean and the Mediterranean Sea.
Metabonellia is a genus of marine spoon worms in the family Bonelliidae. It is a monotypic genus and Metabonellia haswelli is the only species. It is commonly known as the green spoon worm and is found in shallow waters around Australia.
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Eulophia obtusa, a showy and distinctive species of orchid, popularly known as the ground orchid, recorded from Bangladesh, North India and Nepal. This orchid growing in seasonally in grassland. It is a grass associated orchid species. A Bangladesh based renowned botanist and ornithologist Md Sharif Hossain Sourav first described this rare species from Bangladesh in 2017. There are only three collections in the Kew Herbarium dates from 1902, which suggests that it is quite a rare species. It is assessed as critically endangered (CR) in Bangladesh according to the IUCN Red Listing criteria. Very recently this species was rediscovered in India after 118 years.
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