Results 111 to 120 of about 557 (123)

A new species ofRedudasys(Gastrotricha: Macrodasyida: Redudasyidae) from the United States

Proceedings of the Biological Society of Washington, 2017
Abstract A new species of Redudasys (Macrodasyida: Redudasyidae) is described from Texas and Oregon, U.S.A. A single Texas specimen was reported (but not formally described and named) in 2014 from an artesian outflow in Spring Lake, San Marcos, Texas. The Texas specimen provided the first record of Redudasys from outside Brazil.
Tobias Kånneby, James J. Kirk
openaire   +2 more sources

Postembryonic growth and morphological variability inTurbanella mustela (Gastrotricha, Macrodasyida)

Journal of Morphology, 1998
The macrodasyid gastrotrich Turbanella mustela was studied by light microscopy and analyzed for postembryonic growth and variation. Growth was characterized by a positive relationship between the length of the body and the lengths of the pharynx and intestine, widths of the head and body, and diameter of the buccal capsule.
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Three new species of gastrotricha macrodasyida from the bergen area, Western Norway

Sarsia, 1996
Abstract The paper describes three new macrodasyidan gastrotrichs from the Bergen area, western Norway and is part of a series of papers with the scope of describing the Norwegian marine gastrotrich fauna in order to extend the knowledge of Norwegian biodiversity. Paraturbanella scanica sp. n.
openaire   +2 more sources

Novelties in the Evolution of the Urodasys reproductive system (Gastrotricha, Macrodasyida)

2017
Macrodasyidan gastrotrichs are hermaphrodites with complex accessory reproductive organs that function in sperm transfer and receipt. Unfortunately, homology among the organs of members of different clades is largely undetermined, troubling a clear understanding of the evolutionary trends in the reproductive biology of these animals.
Cesaretti A, DAL ZOTTO M, Todaro M A
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Ultrastructure of penetrated spermatozoa, ovary, and oogenesis ofDactylopodoola baltica(Gastrotricha, Macrodasyida)

Invertebrate Reproduction & Development, 1996
Summary Penetrated spermatowa, ovary, and oogenesis of the macrodasyidan gastrotrich Dactylopodola baltica are described by means of transmission electron microscopy. The sperm consists of a rod-like nucleus and an adjacent region where a series of single mitochondria alternate with dark zones where dense bodies are located.
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Sperm ultrastructure of Macrodasys caudatus (Gastrotricha: Macrodasyida) and a sperm-based phylogenetic analysis of Gastrotricha

2004
The spermatozoon of Macrodasys caudatus Remane, 1927 (Macrodasyida: Macrodasyidae) was studied and compared with both the spermatozoal patterns of M. sp. as well as with our unpublished observations on two species of Urodasys, the only other genus studied in the family. The spermatozoon of M. caudatus is similar to that of M.
MAROTTA M., GUIDI L., PIERBONI L., FERRAGUTI M., TODARO, Mary Antonio Donatello, BALSAMO M.   +5 more
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Spermatozoi senza mitocondri: la scelta dei Macrodasyidae (Gastrotricha, Macrodasyida).

2005
GUIDI, LORETTA, MAROTTA R, PIERBONI L, FERRAGUTI M, BALSAMO M.   +4 more
openaire   +1 more source

The Reproductive System of Gastrotrichs. III. Genital organs of Thaumastodermatinae subfam. n. and Diplodasyinae subfam. n. with discussion of reproduction in Macrodasyida¹

, 1978
Edward E. Ruppert
openalex   +1 more source

Marine gastrotrich fauna in Corsica (France), with a description of a new species of the genus Tetranchyroderma (Macrodasyida, Thaumastodermatidae)

, 2002
M. Antonio Todaro, Maria Balsamo, Paolo Tongiorgi   +2 more
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Analysis of 18S rRNA gene sequences suggests significant molecular differences between Macrodasyida and Chaetonotida (Gastrotricha)

, 2003
Oleg G. Manylov, N. S. Vladychenskaya, Irina A. Milyutina, O. S. Kedrova, Nikolai P. Korokhov, Gennady Dvoryanchikov, В. В. Алешин, Н. Б. Петров   +7 more
openalex   +1 more source