I.—On Lepidosiren paradoxa, Fitzinger, and Lepidosiren articulata, sp. n., from Paraguay

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Respiratory function in the South American lungfish, Lepidosiren paradoxa (Fitz).

Few animal species have aroused as much excitement upon their discovery as the South American lungfish. Its possession of distinct piscine as well as amphibian characters made the animal a link in the transition of vertebrate life from water breathing to air breathing. Its special attributes are clearly reflected in its name, Lepidosiren paradoxa. Physiological experimentation on respiratory fu...

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Eimeria lepidosirenis n.sp. (Apicomplexa:Eimeriidae) of the South American lungfish Lepidosiren paradoxa (Osteichthyes:Dipnoi) from Amazonian Brazil.

The mature oocysts of Eimeria lepidosirenis n.sp. are described in faeces removed from the lower region of the intestine of a single specimen of the South American lungfish Lepidosiren paradoxa, from Belém, state of Pará, Amazonian Brazil. Oocysts with endogenous sporulation: spherical to slightly subspherical, 30.8 x 30.3 microm (28.1 x 25.9 -33.3 x 31.8), shape-index (ratio length/width) 1.0,...

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Specialized metabolism and biochemical suppression during aestivation of the extant South American lungfish--Lepidosiren paradoxa.

Lepidosiren paradoxa (pirambóia) is the single representative of Dipnoan (lungfish) in South America. This species is considered a living fossil, in spite of some reports describing this fish as having a very specialized life style. It aestivates during the dry season, and has developed metabolic adaptations to cope with both flooding and drought. The literature describing its tissue ultra-stru...

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Morphology, Characterization and Distribution of Retinal Photoreceptors in the South American (Lepidosiren paradoxa) and Spotted African (Protopterus dolloi) Lungfishes

Citation: Appudurai AM, Hart NS, Zurr I and Collin SP (2016) Morphology, Characterization and Distribution of Retinal Photoreceptors in the South American (Lepidosiren paradoxa) and Spotted African (Protopterus dolloi) Lungfishes. Front. Ecol. Evol. 4:78. doi: 10.3389/fevo.2016.00078 Morphology, Characterization and Distribution of Retinal Photoreceptors in the South American (Lepidosiren parad...

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Arlenelepis harpiprioni gen. et sp. n. (Cestoda: Dilepididae) from Harpiprion caerulescens (Vieillot) (Aves: Threskiornithidae) in Paraguay.

Arlenelepis harpiprioni gen. et sp. n. (Cyclophyllidea, Dilepididae) is described from the plumbeous ibis Harpiprion caerulescens (Vieillot) (Ciconiiformes, Threskiomithidae) in Province Concepción, Paraguay. This cestode is characterised by a very small body (not exceeding 5 mm in length) consisting of about 30 proglottides, musculo-glandular rostellar apparatus, rostellar hooks arranged in tw...

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ژورنال

عنوان ژورنال: Annals and Magazine of Natural History

سال: 1894

ISSN: 0374-5481

DOI: 10.1080/00222939408677755