Distribution of pelagic squids Abraliopsis Joubin, 1896 (Enoploteuthidae) and Pterygioteuthis P. Fischer, 1896 (Pyroteuthidae) (Cephalopoda, Decapodiformes, Oegopsida) in the Mexican Pacific [PDF]
ZooKeys, 2015 The oegopsid squids Abraliopsis and Pterygioteuthis are abundant and diverse genera with taxonomic and distributional problems. Identification and distribution of species in the Mexican Pacific has been somewhat controversial. Here are provided a large series of new records for Abraliopsis affinis, Abraliopsis falco, Pterygioteuthis gemmata ...
Hendrickx,Michel +2 more
openaire +2 more sources
, 2022 Abstract The coleoid cephalopod Spirula spirula, the only present-day representative of the coleoid order Spirulida, secretes a coiled shell consisting of a series of chambers divided by septa and connected by a siphuncle. It is the shell closest to those of ectochleate cephalopods: nautiloids, ammonoids.
Antonio G. Checa +6 more
openaire +1 more source
Symbiotic organs shaped by distinct modes of genome evolution in cephalopods [PDF]
, 2019 Microbes have been critical drivers of evolutionary innovation in animals. To understand the processes that influence the origin of specialized symbiotic organs, we report the sequencing and analysis of the genome of Euprymna scolopes, a model cephalopod
Minx, Patrick
core +9 more sources
The cuttlefish Sepia officinalis (Sepiidae, Cephalopoda) constructs cuttlebone from a liquid-crystal precursor [PDF]
, 2015 Cuttlebone, the sophisticated buoyancy device of cuttlefish, is made of extensive superposed chambers that have a complex internal arrangement of calcified pillars and organic membranes. It has not been clear how this structure is assembled. We find that
A Appellöff +36 more
core +5 more sources
Fine structure and optical properties of biological polarizers in crustaceans and cephalopods [PDF]
, 2008 The lighting of the underwater environment is constantly changing due to attenuation by water, scattering by suspended particles, as well as the refraction and reflection caused by the surface waves.
Caldwell, Roy L. +3 more
core +1 more source
Actin Gene Family Evolution and the Phylogeny of Coleoid Cephalopods (Mollusca: Cephalopoda) [PDF]
, 2000 Phylogenetic analysis conducted on a 784-bp fragment of 82 actin gene sequences of 44 coleoid cephalopod taxa, along with results obtained from genomic Southern blot analysis, confirmed the presence of at least three distinct actin loci in coleoids ...
Carlini, David B. +2 more
core +2 more sources
A phylogeny of fossil and living neocoleoid cephalopods [PDF]
, 2015 Coleoid cephalopod phylogeny is well studied via both molecular and morphological data, yet although some agreement has been reached (e.g. that extant Decapodiformes and Octopoda are monophyletic) many details remain poorly resolved. Fossil coleoids, for
Allcock +49 more
core +1 more source
Unravelling the phylogenetic and ecological drivers of beak shape variability in cephalopods [PDF]
, 2023 19 pages, 5 figures, 4 tables, supplementary Information https://doi.org/10.1007/s11160-022-09744-5.-- Data availability: Genetic data underlying this article are available in the GenBank Nucleotide Database at https://www.ncbi.nlm.nih.gov/genbank/ and ...
Allcock, A. Louise +8 more
core +3 more sources
A novel metabarcoding primer pair for environmental DNA analysis of Cephalopoda (Mollusca) targeting the nuclear 18S rRNA region [PDF]
, 2021 Cephalopods are pivotal components of marine food webs, but biodiversity studies are hampered by challenges to sample these agile marine molluscs. Metabarcoding of environmental DNA (eDNA) is a potentially powerful technique to study oceanic cephalopod ...
Bayer, Till +5 more
core +2 more sources
Cephalopod classification and taxonomy [PDF]
, 2015 Chambered nautilus, cuttlefishes, squids and octopus are the four major groups of cephalopods, which belong to the highly evolved class of phylum Mollusca. Cephalopods are the third largest molluscan class after bivalves and gastropods and consist of
Mohamed, K S, Venkatesan, V
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