Results 1 to 10 of about 104,423 (268)
Sperm movement has been described in several phyla of invertebrates. Yet, sperm motility has only been quantified using computer-aided sperm analysis (CASA-Mot) in externally fertilising species (broadcast spawners) of two phyla, molluscs and echinoderms.
van der Horst, Gerhard +2 more
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Terebra steering in chalcidoid wasps
Various chalcidoid wasps can actively steer their terebra (= ovipositor shaft) in diverse directions, despite the lack of terebral intrinsic musculature.
Benjamin Eggs +5 more
doaj +1 more source
Assessing the taxonomic importance of the suture line in shelled cephalopods is a key to better understanding the diversity of this group in Earth history.
Amane Tajika +2 more
doaj +1 more source
Feeding spectrum of a dominant splash zone enchytraeid, Mesenchytraeus bungei Michaelsen, 1901 (Annelida: Oligochaeta), in Lake Baikal (East Siberia) [PDF]
The first data on feeding spectrum of Baikal enchytraeids are given. Previously we found that Mesenchytraeus bungei Michaelsen, 1901 dominates in abundance in splash zone Oligochaeta community of Bolshie Koty Bay, Lake Baikal.
Zvereva, Yu. M., Timoshkin, O. A.
doaj +1 more source
The complete mitochondrial genome sequences of two species of the family Trichonotidae, Trichonotus elegans (Shimada and Yoshino ) and Trichonotus filamentosus (Steindachner ), were determined using a polymerase chain reaction-based method.
Takashi P. Satoh, Eri Katayama
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Zoology: Invertebrates that Parasitize Invertebrates [PDF]
The genome of an orthonectid, a group of highly modified parasitic invertebrates, is drastically reduced and compact, yet it shows the bilaterian gene toolkit. Phylogenetic analyses place the enigmatic orthonectids within Spiralia, although their exact placement remains uncertain.
openaire +2 more sources
A contribution to the Atherigona (Diptera, Muscidae) fauna of Angola [PDF]
This study lists a total of 13 species of Atherigona Rondani, 1856 from Angola, 9 of which were previously recorded: Atherigona (Atherigona) bedfordi van Emden, 1940; Atherigona (Atherigona) campestris Deeming, 1971; Atherigona (Acritochaeta) cogani ...
Mokome M. J. Magoai +2 more
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Deterrent activities in the crude lipophilic fractions of Antarctic benthic organisms: chemical defences against keystone predators [PDF]
Generalist predation constitutes a driving force for the evolution of chemical defences. In the Antarctic benthos, asteroids and omnivore amphipods are keystone opportunistic predators.
Laura Núñez-Pons, Conxita Avila
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Leptoclinides (Ascidiacea, Didemnidae) from Brazil: new records and two new species
Twenty-two samples of Leptoclinides Bjerkan, 1905 collected along the Brazilian coast between 1998 and 2017 were examined. Herein we describe two new species (Leptoclinides coronatus sp. nov. and Leptoclinides lotufoi sp. nov.).
Livia M. Oliveira +2 more
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The full mitogenome of an ethanol-preserved museum specimen of Ceramaster japonicus was determined using the NGS Illumina MiSeq platform. The specimen was collected from Tosa Bay, Japan, facing the Pacific Ocean (33.0781 N 134.0601 E), at 700 m depth in ...
Masaki Yamamoto +6 more
doaj +1 more source

