Results 141 to 150 of about 296,900 (388)

Morfologia externa dos estágios imaturos de heliconíneos neotropicais: V. Agraulis vanillae maculosa (Lepidoptera, Nymphalidae, Heliconiinae) External morphology of the immature stages of neotropical heliconians: V. Agraulis vanillae maculosa (Lepidoptera, Nymphalidae, Heliconiinae)

open access: yesIheringia: Série Zoologia, 2006
As estruturas externas do ovo, larva e pupa de Agraulis vanillae maculosa (Stichel, [1908]) são descritas e ilustradas, baseadas em microscopia óptica e eletrônica de varredura.The external features of egg, larva and pupa of Agraulis vanillae maculosa ...
Denis S. da Silva   +3 more
doaj   +1 more source

Description of a new species of Paranthaclisis Banks from Florida (Neuroptera: Myrmeleontidae) [PDF]

open access: yes, 2012
A new species of Paranthaclisis Banks, P. floridensis (Neuroptera: Myrmeleontidae), is described from Florida and compared to the other described species in the genus.
Miller, Robert B., Stange, Lionel A.
core   +2 more sources

Histochemical indications for a chemically complex signal produced by the cervical gill slit gland of the pygmy sperm whale (Kogia breviceps)

open access: yesThe Anatomical Record, EarlyView.
Abstract The pygmy sperm whale (Kogia breviceps) possesses an exocrine gland associated with its false gill slit pigmentation pattern. The cervical gill slit gland is a compound tubuloalveolar gland that produces a holocrine secretion and displays maturational changes in size and secretory histology. While the morphology of the cervical gill slit gland
Tiffany F. Keenan   +13 more
wiley   +1 more source

Nociceptive interneurons control modular motor pathways to promote escape behavior in Drosophila

open access: yeseLife, 2018
Rapid and efficient escape behaviors in response to noxious sensory stimuli are essential for protection and survival. Yet, how noxious stimuli are transformed to coordinated escape behaviors remains poorly understood.
Anita Burgos   +10 more
doaj   +1 more source

An annotated catalogue of the Lepidoptera collection of Guido Lanfranco at the National Museum of Natural History in Malta [PDF]

open access: yes, 2008
An annotated list of the lepidoptera in the Lanfranco collection donated to the National Museum of Natural History of Mdina in Malta is included.
Borg, John J., Sammut, Paul
core  

Bessel beam illumination reduces random and systematic errors in quantitative functional studies using light-sheet microscopy [PDF]

open access: yes, 2018
Light-sheet microscopy (LSM), in combination with intrinsically transparent zebrafish larvae, is a choice method to observe brain function with high frame rates at cellular resolution.
Alterini, Tommaso   +8 more
core   +15 more sources

From trochophore to pilidium and back again - a larva's journey.

open access: yesInternational Journal of Developmental Biology, 2014
Nemerteans, a phylum of marine lophotrochozoan worms, have a biphasic life history with benthic adults and planktonic larvae. Nemertean larval development is traditionally categorized into direct and indirect.
S. Maslakova, Terra C. Hiebert
semanticscholar   +1 more source

Is cranial anatomy indicative of fossoriality? A case study of the mammaliaform Hadrocodium wui

open access: yesThe Anatomical Record, EarlyView.
Abstract Determining the ecology of fossil species presents considerable challenges due to the often fragmentary preservation of specimens. The mammaliaform Hadrocodium wui from the Jurassic of China is known only from the cranium and mandible but may have had a fossorial lifestyle.
Molly Tumelty, Stephan Lautenschlager
wiley   +1 more source

Topological and variational modularity: A case study using the pectoral girdle across the Chrosomus eos‐neogaeus hybridization complex

open access: yesThe Anatomical Record, EarlyView.
Abstract Modularity and integration are key developmental properties and have remained central in evo‐devo research because of how they relate to evolvability. While modularity and integration have commonly been assessed with landmark‐based geometric morphometrics (GMM), other methods such as anatomical network analysis (AnNA) are increasingly being ...
Kevin K. Duclos   +4 more
wiley   +1 more source

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