Zobrazeno 1 - 10
of 71
pro vyhledávání: '"H, Weitzman"'
Publikováno v:
Papéis Avulsos de Zoologia, Vol 53, Iss 10, Pp 129-144 (2013)
Two new species of inseminating freshwater fishes of the genus Monotocheirodon, family Characidae, are described from Peru. Males and females of both new species have an external, visually obvious urogenital papilla that was not detected in the femal
Externí odkaz:
https://doaj.org/article/7028997a322c4962b5fb54d6afcaac63
Publikováno v:
Papéis Avulsos de Zoologia, Vol 51, Iss 5, Pp 59-82 (2011)
Diapoma is reviewed and four species are recognized: (1) Diapoma thauma, new species, from streams of the rio Jacuí basin, state of Rio Grande do Sul; (2) D. pyrrhopteryx, new species collected from the rio Canoas and streams flowing into this basin
Externí odkaz:
https://doaj.org/article/d19c4ce0f022471bb19b4c9d9531bf2e
Autor:
Stanley H. Weitzman
Publikováno v:
Britannica Online
Externí odkaz:
http://academic.eb.com/levels/collegiate/article/111056
Publikováno v:
Journal of Fish Biology. 89:495-509
Originally described from the upper Rio das Velhas, a tributary of the Rio Sao Francisco, state of Minas Gerais, Brazil, Hysteronotus megalostomus was recently collected in many tributaries of the Rio Sao Francisco north of the type locality. The spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43aee0ffc8230b3dd9f2c310d60fcc5c
https://doi.org/10.1111/jfb.13000
https://doi.org/10.1111/jfb.13000
Publikováno v:
Journal of morphology. 224(2)
In this report, the gonads of 32 glandulocaudine species, representing 18 genera, are compared with 11 outgroup characiform species. Through the presence of spermatozoa within the ovarian cavity, internal fertilization of the female is confirmed for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a12405e75c64f5c02a42b1543a4287b
https://pubmed.ncbi.nlm.nih.gov/29865315
https://pubmed.ncbi.nlm.nih.gov/29865315
Publikováno v:
Scandinavian Journal of Haematology. 37:421-424
We studied cell surface markers in 8 men with T-cell chronic lymphocytic leukaemia, using fluorescein-conjugated monoclonal antibodies and a cell analyser/sorter. 1 patient's cells had a T-suppressor/cytolytic phenotype (T4-, T8+) and in 3 patients t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb001da1c530b63b9537f9615b2fd832
https://doi.org/10.1111/j.1600-0609.1986.tb02631.x
https://doi.org/10.1111/j.1600-0609.1986.tb02631.x
Publikováno v:
Copeia. 2008:656-660
The main purpose of this study was to describe the morphology of the sperm packets produced by species in the genus Xenurobrycon. Males of the three species analyzed, X. macropus, X. polyancistrus, and X. heterodon, produce unencapsulated sperm bundl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5683bded295a5ca9d226152c1884d5d8
https://doi.org/10.1643/cg-07-143
https://doi.org/10.1643/cg-07-143
Autor:
John R. Burns, Stanley H. Weitzman, Cristina Luísa Conceição de Oliveira, Luiz Roberto Malabarba
Publikováno v:
Journal of Morphology. 269:691-697
Macropsobrycon uruguayanae is a small, inseminating characid (tetra) of the tribe Compsurini. Although spermatozoa can be found within the ovarian cavity close to oocytes, the exact moment of fertilization has not yet been determined. Spermatozoa hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::012cef64f6e87829430d0d619335475e
https://doi.org/10.1002/jmor.10613
https://doi.org/10.1002/jmor.10613
Publikováno v:
Journal of fish biology. 89(1)
Originally described from the upper Rio das Velhas, a tributary of the Rio São Francisco, state of Minas Gerais, Brazil, Hysteronotus megalostomus was recently collected in many tributaries of the Rio São Francisco north of the type locality. The s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f294ae85b32249331503849f50c8df22
https://pubmed.ncbi.nlm.nih.gov/27237472
https://pubmed.ncbi.nlm.nih.gov/27237472
Autor:
John R. Burns, Stanley H. Weitzman
Publikováno v:
Copeia. 2006:529-534
We herein document intromittent organs in four Peruvian populations of inseminating fishes of the family Characidae, genus Monotocheirodon, which may comprise new species. All females histologically analyzed from these populations, as well as a femal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2c75013628f4667b26cd8bd5c945132
https://doi.org/10.1643/0045-8511(2006)2006[529:ioitgm]2.0.co
https://doi.org/10.1643/0045-8511(2006)2006[529:ioitgm]2.0.co