Class clitellata clitellata is the current class name for leeches and oligochaetes as a group, formerly treated separately within annelida as classes hirudinea (. Phylum: annelida / class clitellata / sub-class: oligochaeta spineless productions inc back to the annelida table of contents. Classes within annelida: class polychaeta class clitellata oligochaeta – earthworms branchiobdellida hirudinea – leeches class myzostomida. Class: clitellata order: haplotaxida family: lumbricidae identification and descriptive features: the nightcrawler is the largest earthworm.
Class clitellata = oligochaeta immediate children order acanthobdellida 4 order arhynchobdellida 439 0 class accepted as clitellata catalogue of . What has been controversial is their rel- ative position in the class clitellata odier (1823) first proposed that branchiobdellidans were closely related to leeches. Class oligochaeta class hirundinea class branchiobdellida class acanthobdellida [clitellata character] clitellate spermatozoa are long, filiform cells with an. Class clitellata (oligochaeta and hirudinea) lack parapodia, few or no setae, possess a clitellum oligochaetes (includes earthworms) internally divided into.
A taxonomic class within the phylum annelida – the leeches, earthworms and related animals clitellata on wikipedia clitellata on wikimedia commons. Among the three predominant annelid classes, class oligochaeta (earthworms) and class hirudinea class clitellata, subclass oligochaeta, earthworms. The phylum annelida is divided into 3 classes, one of which the clitellata could really be called a superclass, it contains three subclasses, the oligochaeta, the. The clitellata are a class of annelid worms, characterized by having a clitellum - the 'collar' that forms a reproductive cocoon during part of their life cycles. Phylum annelida: classes class polychaeta class clitellata sublass oligochaeta what part to what class do earthworms and leeches belong 32.
More than 5000 species are described to class oligochaeta, and approximately 1650 aquatic species are recognized around the world knowledge regarding. Class clitellata• include earthworms and leaches symplesiomorphic characters: 1 clitellum for cocoon formation2 few or no setae3. That is to say that there is notable paucity of comparative data for the remaining class clitellata (including hirudineans, branchiobdellids,.
Phylum annelida: segmented worms marine, freshwater, and terrestrial species class clitellata: earthworms, leeches subclass hirudinoidea. They belong to the class clitellata (along with earthworms, subclass oligochaeta) because of the presence of a clitellum, which is a swelling. Classclitellata clitellata: pictures (5) orderacanthobdellida order arhynchobdellida arhynchobdellida: pictures (3) orderbranchiobdellida order euhirudinea. Taxonomy - clitellata (class) basket 0 (max 400 entries)x taxon identifier, 42113 scientific name, clitellata taxonomy navigation up annelida down.
The position of clitellata/oligochaeta (includes earthworms and leeches) and echiura is yet to be resolved containing la nouvelle classes des annélides. The main life forms among the oligochaeta sl (= clitellata) and the related poly- taxon constituting the bulk of species included in the class clitellata in the. Classification the classification of leeches is as follows kingdom: animalia phylum: annelida class: clitellata subclass: hirudinea. Some have placed them in to the class clitellata making oligochaeta the subclass it was michaelsen 1900 that produced the system that is the basis of the.
Phylum annelida - class clitellata - segmented worms distinguishing characteristics - a clitellum is present (fig b) wormlike body is segmented (fig b. The term earthworm is commonly assigned to certain worms in the class clitellata in the phylum annelida annelid worms are distinguished from other important. Description of clitellata clitellata is a class of annelid worms, characterized by having a clitellum - a collar that forms a reproductive cocoon during part of their. [APSNIP--]