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Norealidys

Norealidys is a replacement name for preoccupied earthworm genus Reynoldsia - non Reynoldsia - under ICZN as previously flagged. The genus is currently monotypic, with Norealidys andaluciana as the sole species.

Opheliidae

Ophelliidae is a family of small, annelid worms. It contains the following genera: Antiobactrum. Ophelina. Kesun. Armandia. Ammotrypanella. Travisia. Tachytrypane. Euzonus. Pygophelia. Thoracophelia. Dindymenides. Ophelia. (Офелия) Lobochesis. Po ...

Ophryotrocha batillus

Ophryotrocha batillus is a species of polychaete worm, first found on deep sea whale fall and wood fall habitats in the north-east Pacific, off the southern Californian coast. It is very similar to Ophryotrocha scutellus, yet differs from the lat ...

Ophryotrocha craigsmithi

Ophryotrocha craigsmithi is a species of polychaete worm. O. craigsmithi is named after Craig R. Smith. This species is similar to Palpiphitime lipovskyae and O. Platykephale, among others, in having branchial structures dorsally and ventrally. I ...

Ophryotrocha eutrophila

Ophryotrocha eutrophila, is a species of polychaete worm. Ophryotrocha eutrophila is named after its habitat, liking organically enriched environments. This species resembles O. puerilis in jaw morphology. O. eutrophila is dimorphic, with males b ...

Ophryotrocha flabella

Ophryotrocha flabella is a species of polychaete worm, first found on deep sea whale fall and wood fall habitats in the north-east Pacific, off the southern Californian coast. It is similar to Ophryotrocha globopalpata, possessing some morphologi ...

Ophryotrocha langstrumpae

Ophryotrocha langstrumpae is a species of polychaete worm, first found on deep sea whale fall and wood fall habitats in the north-east Pacific, off the southern Californian coast. It is closely related to Ophryotrocha scutellus and Ophryotrocha b ...

Ophryotrocha longicollaris

Ophryotrocha longicollaris is a species of polychaete worm, first found on deep sea whale fall and wood fall habitats in the north-east Pacific, off the southern Californian coast. This species and Ophryotrocha magnadentata are sister species, to ...

Ophryotrocha magnadentata

Ophryotrocha magnadentata is a species of polychaete worm, first found on deep sea whale fall and wood fall habitats in the north-east Pacific, off the southern Californian coast. This species and Ophryotrocha longicollaris are sister species, to ...

Ophryotrocha nauarchus

Ophryotrocha nauarchus is a species of polychaete worm, first found on deep sea whale fall and wood fall habitats in the north-east Pacific, off the southern Californian coast. The species is sexually dimorphic, males having appendages on their f ...

Ophryotrocha scutellus

Ophryotrocha scutellus, is a species of polychaete worm. Live observation of this species in aquarium experiments indicate a bacterial diet. O. scutellus is named after the Latin scutella for" saucer”, due to its flattened disc-like head. Ophryot ...

Parergodrilidae

Parergodrilidae is an enigmatic family of polychaetes with only two genera, one living on the coast, the other terrestrial. They have a lot of similarities with clitellates, but molecular data place them with the quest and Orbiniidae.

Pectinaria (annelid)

Pectinaria granulata Linnaeus, 1767. Pectinaria belgica Pallas, 1766. Pectinaria longipes. Pectinaria meridithi Long, 1973. Pectinaria australis Ehlers, 1904. Pectinaria articulata. (Pectinaria замкового) Pectinaria chilensis Nilsson, 1928. Pecti ...

Pectinariidae

Pectinariidae, or the trumpet worms or ice cream cone worms, are a family of marine polychaete worms that build tubes using grains of sand roughly resembling ice cream cones or trumpets. These structures can be up to 5 centimetres long. The earli ...

Perionyx excavatus

Perionyx excavatus is a commercially produced earthworm. Popular names for this species include composting worms, blues, or Indian blues. This species is marketed for its ability to create fine worm castings quickly. It has recently become more p ...

Petta (polychaete genus)

There are currently four recognized species in the genus Petta pellucida - Ehlers, 1887. Petta tenuis - Caullery, 1944. Petta assimilis - McIntosh, 1885. Petta pusilla - Malmgren, 1866.

Phyllodocidae

Members of the Phyllodocidae are characterised by an eversible pharynx and leaf-like dorsal cirri. The head has a pair of antennae at the front, a pair of ventral palps and a single median antenna known as a "nuchal papilla". There is a pair of n ...

Pilargidae

Pilargidae is a family of polychaetes. These marine worms are cylindrical, somewhat flattened, and can be ribbon-like. They can be found free-living on sediment, or shallowly in sediment. Some species within the genera Hermundura and Litocorsa ar ...

Placobdelloides

Species of Placobdelloides lack a jaw and usually feed with a protrusible proboscis, they are predacious or sanguivorous, or both, on a variety of prey such as shrimps, waterfowl, fish, amphibians, turtles, crocodiles or mammals.

Placobdelloides siamensis

Placobdelloides siamensis is a species of glossophoniid leeches. The species was first described as Hemiclepsis siamensis by Oka in 1917 then transferred by Sawyer to his new genus Placobdelloides in 1986. In 2018, it was redescribed from specime ...

Platynereis

Platynereis is a genus of marine annelid worms. Species Platynereis dumerilii is used in developmental biology in the study of embryogenesis development, in part because their embryos are mostly transparent, and so easy to follow. Apical organs, ...

Polynoidae

Polynoidae is a family of scaled Polychaete worms known as "scale worms". More than 900 species are currently recognised belonging to 18 subfamilies and 167 genera. They are active hunters, but generally dwell in protected environments such as un ...

Psamathini

Psamathini are a tribe of phyllodocid "bristle worms" in the family Hesionidae. They are marine organisms, most are found on the continental shelf, but some have adapted to greater depths down to the abyssal plain. Their half of the spinal altern ...

Rhinodrilus

Rhinodrilus is a genus of large South American earthworms. It belongs to the family Glossoscolecidae. This genus comprises the following species Rhinodrilus appuni. (Appuni Rhinodrilus) Rhinodrilus appuni pavoni. (Appuni Rhinodrilus Павони) Rhino ...

Rhynchelmis

Rhynchelmis is the genus of 30 species of aquatic oligochaetes from the Northern Hemisphere, with 11 species from North America and 19 from Eurasia. They are part of the family Lumbriculidae, which are among the largest of the microdriles. They a ...

Rotularia

Rotularia is an extinct genus of planispirally coiled fossil polychaete worms in the family Serpulidae. Owing to the gastropod-like shape of Rotularia, many authors in the past interpreted this genus as being sea snails in the family Vermetidae. ...

Sabellastarte

The following species are classified in this genus: Sabellastarte sanctijosephi Gravier, 1906. Sabellastarte spectabilis Grube, 1878. Sabellastarte assimilis McIntosh, 1885. Sabellastarte zebuensis McIntosh, 1885. Sabellastarte longa Kinberg, 186 ...

Sabellida

Sabellida is an order of annelid worms in the class Polychaeta. They are filter feeders with no buccal organ. The prostomium is fused with the peristomium and bears a ring of feathery feeding tentacles. They live in parchment-like tubes made of p ...

Saccocirridae

The Saccocirridae are small interstitial polychaetes common in coarse sand on reflective, surf beaches, usually within the zone of retention. The Saccociridae are members of the clade Protodrilida, which is in turn part of the clade Canalipalpata ...

Sparganophilus

Sparganophilus, the only genus in the family Sparganophilidae, is a group of long, slender, limicolous earthworms native to North America. The number of species is unknown, most of them are undescribed, throughout the continent and into Central A ...

Spenceriella

Spenceriella is a genus of worms in the family Megascolecidae that is now included in the prior genus Anisochaeta although some other species are transferred to Celeriella.

Spionidae

Spionidae is a family of marine worms within the Polychaeta. Spionids are selective deposit feeders that use their two grooved palps to locate prey. However, some spionids are capable of interface feeding, i.e. switching between deposit and suspe ...

Spirobranchus

There are several species in the genus World Register of Marine Species, including the following. Spirobranchus minutus Rioja, 1941. Spirobranchus spinosus Moore, 1923. Spirobranchus kraussii Baird, 1865. Spirobranchus tetraceros Schmarda,1861. ( ...

Swima

Swima is a genus of polychaete worm that lives in the deep ocean. This deep ocean pelagic annelid has modified bioluminescent gills that can be cast off from an individual. These discarded gills somewhat resemble green "bombs" that remain illumin ...

Syllidae

Syllidae is a family of small to medium-sized polychaete worms. Syllids are distinguished from other polychaetes by the presence of a muscular region of the anterior digestive tract known as the proventricle. Syllid worms size from 2-3 mm 0.08–0. ...

Terebellomorpha

Terebellomorpha is a suborder within the polychaete order Terebellida. Terebellomorphs are characterised by the presence of notopodia with buccal tentacles, simple bristles and neuropodia with uncini.

Xerobdellidae

Xerobdellidae are a small family of "jawed leeches". The latter might be a natural, monophyletic group of hirudiniform proboscisless leeches. Xerobdellidae have three jaws and five pairs of eyes, the fourth and fifth being separated by one or two ...

Aboriginella

Aboriginella is an extinct genus of brachiopods found in Aksayan to Batyrbaian strata in Kazakhstan. It was a facultatively mobile infaunal suspension feeder.

Acrotheloidea

Acrotheloidea is a superfamily of Discinid brachiopods, alternatively ascribed to the lingulids - for a discussion of discinid taxonomy, see Discinida. The story goes that there is an evolutionary transition from Eoobolus through Pustulobolus and ...

Acrotretida

The Acrotretida are a group of sessile, suspension-feeding brachiopods known from the Cambrian period and surviving until the present day. Their shell has a round outline, and is usually phosphatic in recent specimens. They contain only Acrotreto ...

Aemula

Aemula is an extinct genus of brachiopods that lived during the Cretaceous period. The pedunculate brachiopod species Aemula inusitata had lived on the bodies of larger animals which served for enough feeding surface, since no large attachment si ...

Aldanotreta

Aldanotreta is an extinct genus of brachiopods dating from the Tommotian age of the Cambrian period. It is perhaps the earliest brachiopod. A living relative is Lingula found in Japan.

Ancistrocrania

Ancistrocrania is an extinct genus of brachiopods from the Upper Cretaceous of Europe and North-America. The name is derived from the Greek words αγκιστρο "fish hook" and κρανίον skull.

Christiania (brachiopod)

Christiania aseptata - Christiania bilobata - Christiania dalarnensis - Christiania hastata - Christiania hollii - Christiania holtedahli - Christiania perrugata - Christiania portlocki - Christiania proclivis - Christiania subquadrata - Christia ...

Cleiothyridina

† Cleiothyridina echidniformis Waterhouse 1983. † Cleiothyridina macleayana Etheridge 1889. † Cleiothyridina uralica Grabau 1934. † Cleiothyridina pilularis Cooper and Grant 1976. † Cleiothyridina nielseni Dunbar 1955. † Cleiothyridina davidsoni ...

Crania (brachiopod)

Crania has small up to 2 centimetres or 0.79 inches in diameter circular shells. The dorsal valve is smooth or has slight pustules. The ventral valve is only attached posteriorly and has a thickened flat grainy rim.

Craniata (brachiopod)

Craniata is a class of brachiopods originating in the Cambrian period and still extant today. They have calcitic inarticulated shells that are subcircular in outline. This class of brachiopods has an unsupported lophophore and is always attached ...

Craniscus

Craniscus is a genus of small brachiopods. The shell is approximately round to square with one side rounded. The ventral valve is approximately flat and attached to the underground by the entire surface. The outside of the dorsal valve is more or ...

Cubanothyris

Cubanothyris is an extinct genus of prehistoric brachiopods in the extinct family Angustothyrididae. Species are from the Triassic of China, the Russian Federation and Tajikistan. The type species, C. elegans, is found only at River Kuna.

Cyrtospirifer verneuili

Cyrtospirifer verneuili, also called Spirifer verneuili, is an extinct species of brachiopods. The fossils are present in the Upper Devonian. In Cornwall they have a commonly used name of the Delabole butterfly, from the appearance of flattened f ...

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Prototreta flabellata

Pygope

Rhynchonella

Sphenorhynchia

Sphenorhynchia plicatella

Alcyonidium diaphanum

Pseudobiceros gloriosus

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saccocirridae placobdelloides Golf langstrumpae Placobdelloides Acrotretida Pectinaria annelid Apple magnadentata Outer space Pectinaria Perionyx excavatus Water polo rotularia Visual arts Aldanotreta ophryotrocha nauarchus Nature Car siamensis cyrtospirifer verneuili Crania Aboriginella Television show opheliidae Cleiothyridina Phyllodocidae terebellomorpha Ophryotrocha eutrophila Lego

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