Overview

Distribution

Biogeography

Australis, in New Zealand, according to De Smet (1996); no reference found
Palaearctis
Nearctis

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Type locality: Not specified, England.

Reported for Europe, America, New Zealand.

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© Leasi, Francesca

Source: Marine Rotifera

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Physical Description

Morphology

Body fusiform, elongate, slender; hyaline. Head offset by distinct neck-fold, completely retractable. Tail small, prominent. Foot very long, ~ 1/3 total length, very motile, 3 pseudosegments: basal short, ± conical, median long, ± cylindrical, terminal very short, usually partially retracted in median. Toes ± lanceolate, abruptly ending in tubular points, bases partially fused, often slightly recurved dorsally. Corona slightly oblique, 2 lateral ciliary tufts. Brain large, saccate. Two frontal eyespots, x-like set together, occasionally fused. Stomach and intestine separated by constriction. Gastric glands oval. Pedal glands very long, extending into trunk. Subitaneous egg elongate oval, attached to substrate by short tag.

Trophi malleate, symn1etrical; basal part of rami with rounded a1ulae and large, plate-shaped basal apophyses with comb of ± 12 teeth; anterior part thin, Y-shaped. Fulcrum short, posterior end strongly expanded in ventral view; in lateral view ± wedge-shaped, posterior end slightly expanded. Unci symmetrical, 3-4 rounded teeth, gradually decreasing in size; principal teeth each with prominence on ventral margin; under side with skleropili on anterior margin of uncinal plates. Manubria club-shaped, wide, posterior half curved ventrally, posterior and anterior cavities in upper half. A thin ± triangular plate between malleus and incus. Occasionally 2 thin, kinked, pleural rods.

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© Leasi, Francesca

Source: Marine Rotifera

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Size

Length 265-500 µm, toe 27-39 µm; trophi 22-29 µm: ramus 14-18 µm, fulcrum 6 µm, uncus 10-12 µm, manubrium 23-26 µm; subitaneous egg 88-116x50-62 µm.

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Leasi, Francesca

Source: Marine Rotifera

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Type Information

Collection specimen

Non-type voucher specimen for Proales theodora (Gosse, 1887)
Catalog number: 0024
Collection: National University of Mongolia, Ulaanbaatar, Mongolia
Prepared by: Jersabek, C D
Sex/stage/structure: trophus
Preparation: Slide Preparation; Microscope slide, pure Glycerine mount, NOA61 sealing, Asphaltum varnish ringing
Specimen Count: 1

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Collection specimen

Non-type voucher specimen for Proales theodora (Gosse, 1887)
Catalog number: 0023
Collection: National University of Mongolia, Ulaanbaatar, Mongolia
Prepared by: Jersabek, C D
Sex/stage/structure: females
Preparation: Slide Preparation; Microscope slide, pure Glycerine mount, NOA61 sealing, Asphaltum varnish ringing
Specimen Count: 2

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Collection specimen

Non-type voucher specimen for Proales theodora (Gosse, 1887)
Catalog number: 0022
Collection: National University of Mongolia, Ulaanbaatar, Mongolia
Prepared by: Jersabek, C D
Sex/stage/structure: female
Preparation: Slide Preparation; Microscope slide, pure Glycerine mount, NOA61 sealing, Asphaltum varnish ringing
Specimen Count: 1

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Collection specimen

Non-type voucher specimen for Proales theodora (Gosse, 1887)
Catalog number: UB031
Collection: Christian D. Jersabek, personal working collection, Salzburg, Austria
Prepared by: Jersabek, C D
Sex/stage/structure: trophi
Preparation: Slide Preparation; Microscope slide, pure Glycerine mount, NOA61 sealing, Asphaltum varnish ringing
Specimen Count: 2

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Collection specimen

Non-type voucher specimen for Proales theodora (Gosse, 1887)
Catalog number: UB003
Collection: Christian D. Jersabek, personal working collection, Salzburg, Austria
Prepared by: Jersabek, C D
Sex/stage/structure: females
Preparation: Slide Preparation; Microscope slide, pure Glycerine mount, NOA61 sealing, Asphaltum varnish ringing
Specimen Count: 2

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Collection specimen

Non-type voucher specimen for Proales theodora (Gosse, 1887)
Catalog number: 1981
Collection: Academy of Natural Sciences of Drexel University, Philadelphia, USA
Prepared by: Jersabek, C D
Sex/stage/structure: trophus
Preparation: Slide Preparation; Microscope slide, pure Glycerine mount, NOA61 sealing, Asphaltum varnish ringing
Specimen Count: 1

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Collection specimen

Non-type voucher specimen for Proales theodora (Gosse, 1887)
Catalog number: 1980
Collection: Academy of Natural Sciences of Drexel University, Philadelphia, USA
Prepared by: Jersabek, C D
Sex/stage/structure: females
Preparation: Slide Preparation; Microscope slide, pure Glycerine mount, NOA61 sealing, Asphaltum varnish ringing
Specimen Count: 2

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Ecology

Habitat

Marine and brackish water.

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© Leasi, Francesca

Source: Marine Rotifera

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Trophic Strategy

Food: diatoms, detritus, bacteria, dinoflagellates.

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© Leasi, Francesca

Source: Marine Rotifera

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General Ecology

Ecology

In mountain springs and littoral of alkaline stagnant and running fresh waters, also among algae in littoral of brackish and marine waters.

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© Leasi, Francesca

Source: Marine Rotifera

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