Nereididae (Polychaeta) da costa nordeste do Brasil: III. Gêneros Ceratonereis e Nereis
نویسندگان
چکیده
منابع مشابه
A new estuarine species, Nereis garwoodi (Polychaeta: Nereididae), from Bahía Chetumal, Mexican Caribbean coast.
Nereis garwoodi n. sp. is described on the basis of eight syntype specimens (six atokous and two heteronereis) collected in Bahía Chetumal, Mexican Caribbean coast, and the variability in the paragnath numbers in the pharynx is established using 180 specimens; paragnath numbers are I:10(SD = 1.9); II:30 (SD = 2.6); III:41 (SD = 5.2); IV:29 (SD = 3.5), V:1, VI:4, VII-VIII: > 30. Its eyes are big...
متن کاملSome Nereididae (Annelida: Polychaeta) from the Pacific Coast of Costa Rica.
Fifteen species of Nereididae (Annelida: Polychaeta) belonging to nine genera are reported from the subtidal and intertidal of the Pacific Coast of Costa Rica. A new species, Nereis costaricaensis, is described. Laeonereis brunnea Hartmann-Schröder 1959 is removed from synonomy with L. culveri (Webster 1880) while Perinereis seridentata (Hartmann-Schröder 1959) is moved from the genus Neanthes ...
متن کاملCanine ehrlichiosis: prevalence and epidemiology in northeast Brazil Erliquiose canina: prevalência e epidemiologia no nordeste do Brasil
Ehrlichiosis is a zoonotic disease that is caused by bacteria of the genus Ehrlichia. The aims of this study were to detect the presence of Ehrlichia spp. in the blood of dogs in Ituberá, Bahia, and to compare the sensitivities and specificities of blood smear, serological, and molecular examinations. Furthermore, this study identified factors associated with exposure to the agent in dogs in th...
متن کاملA review of paragnath morphology in Nereididae (Polychaeta)
The form and arrangement of hardened paragnaths on the pharynx of polychaetes in the family Nereididae has for 150 years been used as a principal system of characters to distinguish species and other taxonomic ranks. Recent studies have shown that phylogenetic relationships based solely on paragnaths give different topologies and clade support than relationships inferred from other character sy...
متن کاملFisiologia do ovário e da fecundação
Os ovários, tal como os testículos, são glândulas endócrinas cuja função não se limita à secreção de hormonas para a circulação sistémica. O ovário é o órgão onde se produzem as células germinais femininas, assegurando a sua maturação e libertação a intervalos regulares, durante a idade reprodutiva da mulher, de um gâmeta capaz de ser fecundado. As duas funções fisiológicas básicas associadas a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Iheringia. Série Zoologia
سال: 2003
ISSN: 0073-4721
DOI: 10.1590/s0073-47212003000100001