Results 131 to 140 of about 5,236 (207)

A new species of Lysinoe (Gastropoda: Helicoidea) from the Oligocene of Mexico

open access: yesRevista Mexicana de Biodiversidad
In her 1945 study on the Tertiary fossil mollusks of northeastern Mexico, Gardner listed only 2 taxa of land snails: Holospira eva Gardner, 1945 and “Helix” sp.
Rodrigo B. Salvador
doaj   +1 more source

Histology and Biology of the Larval Stages of Leucochloridium Carus, 1835 (Trematoda, Digenea) as Revealed by Light and Electron Microscopy

open access: yesFauna Norvegica, 1982
Ultrastructural studies of the metacercarial cyst and the coloured broodsacs of Leucochloridium variae and L. holostomum recovered from succineid pulmonates are presented.
Tor A. Bakke
doaj  

FIGURE 4 in Phylogeny and systematic revision of the helicarionid semislugs of eastern Queensland (Stylommatophora, Helicarionidae)

open access: yes, 2019
FIGURE 4 Comparison of intra- and interspecific genetic p-distances for the two mitochondrial fragments analysed. A. Frequency distributions of distances in COI. B.
Köhler, Frank, Hyman, Isabel T.
core   +1 more source

FIGURE 24 in Phylogeny and systematic revision of the helicarionid semislugs of eastern Queensland (Stylommatophora, Helicarionidae)

open access: yes, 2019
FIGURE 24 Genitalia of F. hannianus. A, B. MO72277, Bakers Blue Mountain. C. MO76564, Hann Tableland. A. Reproductive system. Arrow shows the junction of the penis and epiphallus. B–C. Penis interior. Scale bars 1 mm.Published as part of Hyman, Isabel T.
Köhler, Frank, Hyman, Isabel T.
core   +1 more source

PRESENCIA DE NEMÁTODOS PARÁSITOS EN DOS ESPECIES DE STYLOMMATOPHORA NEOTROPICALES: ESTUDIO PRELIMINAR [PDF]

open access: yes
Un problema sanitario que se ha dejado de lado por poner más énfasis en la especie invasora Lissachatina fulica, la presencia de nemátodos parásitos potencialmente infecciosos, pone en perspectiva lo que se sabe a cerca de los parásitos en las especies ...
Guzmán Pittman, Rubén A.
core  

FIGURE 17 in Phylogeny and systematic revision of the helicarionid semislugs of eastern Queensland (Stylommatophora, Helicarionidae)

open access: yes, 2019
FIGURE 17 Genitalia of F. paluma, MO63984, Paluma Range. A. Reproductive system. Arrow shows the junction of the penis and epiphallus. B. penis interior. Scale bars 1 mm (B), 2 mm (A).Published as part of Hyman, Isabel T. & Köhler, Frank, 2019, Phylogeny
Köhler, Frank, Hyman, Isabel T.
core   +1 more source

Posición evolutiva de caracoles terrestres peruanos (Orthalicidae) entre los Stylommatophora (Mollusca: Gastropoda)

open access: yes, 2017
Los géneros Bostryx y Scutalus (Orthalicidae: Bulimulinae) son endémicos de América del Sur y están principalmente distribuidos en la vertiente occidental de los Andes del Perú. El objetivo del presente trabajo fue evaluar su posición evolutiva dentro de
Ramírez, Rina   +4 more
core  

Population dynamics of Arianta arbustorum and Cepaea hortensis in western Norway

open access: yesFauna Norvegica, 1981
Natural population of Arianta arbustorum and Cepaea hortensis in western Norway were studied for two years (1975 - 1977) using quadrat sampling. A searching efficiency test was performed to obtain more realistic density estimates of juveniles.
Erling Mossige Andreassen
doaj  

Reproducción de Polymita muscarum y Polymita venusta (Stylommatophora: Helminthoglyptidae)

open access: yesRevista de Biología Tropical, 1998
Se estudiaron algunos aspectos de la reproducción de Polymita muscarun y Polymita venusta en condiciones de laboratorio y en poblaciones naturales de la provincia de Holguín durante el período comprendido entre septiembre de 1985 y mayo de 1990.
Liana Bidart   +2 more
doaj  

Preliminary phylogenetic study of Bradybaenidae (Gastropoda: Stylommatophora: Helicoidea)

open access: yes, 2004
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

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