Results 31 to 40 of about 194 (130)
Phylogeny, divergence times and species delimitation of Tonicia (Polyplacophora: Chitonidae) from the eastern Pacific Ocean [PDF]
AbstractThe chiton genus Tonicia is composed of 12 species, 11 of which are found in the eastern Pacific, but the taxonomic status and geographical distribution of these species have long been controversial. In this study, we compare eastern Pacific Tonicia species using molecular systematics. The molecular markers cytochrome oxidase c subunit I (COI),
M Cecilia Pardo-Gandarillas +6 more
openaire +2 more sources
Hull flotation function in the eggs of Mopalia ciliata (Chitonida: Mopaliidae) and swimming of its larvae through ontogeny [PDF]
The free-spawning species of chitons produce eggs that are enclosed in a capsule known as the hull. Particularly in the group of Chitonida, this outer coat is formed by spine projections.
Rebolledo, Adriana P.
core
Udgivelsesdato: 2002-FebCombined electron microscopy and immunocytochemistry of the larvae of several polyplacophoran species (Chiton olivaceus, Lepidochitona aff.
Haszprunar, Gerhard +3 more
core +1 more source
Deshayesiella sinica (Xu, 1990) Hanleya sinica Xu 1990: 374, fig. 1. The species is here included in the list of species from below 2000 m because the collecting site of the holotype: East China Sea (26 ° 40 'N, 126 ° 30 'E), 1680–1950 m, is so ...
Schwabe, Enrico
core +1 more source
A molecular palaeobiological perspective on aculiferan evolution
Recent advances in fossil, developmental and molecular studies show that aplacophorans are derived molluscs that evolved from chiton-like ancestors presumably in the Ordovician period (488–440 Ma), thereby forming the clade Aculifera along with extant ...
Vinther, Jakob
core +1 more source
Class Polyplacophora: Family Chitonidae
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
تم الإبلاغ هنا عن الحالات الأولى من الحالات الشاذة في عدد الصفائح الصدفية في Tonicia atrata (Sowerby II، 1840) على أساس ثلاث عينات من خليج زاراتيغي، تييرا ديل فويغو، الأرجنتين (54°50'53' S، 68°29 '7' W): حالتان من الالتحام (واحدة متماثلة والأخرى غير متماثلة) وحالة من النفاذية. حملت العينات غير الطبيعية أقل من العينات الفسيولوجية ذات الحجم المماثل. كانت
Camila Guillén, Diego Urteaga
openaire +5 more sources
XIX.—On the presence of eyes and other sense-organs in the shells of the Chitonidae
n ...
openaire +3 more sources
This study represents the first phylogenetic analysis of the molluscan class Polyplacophora using DNA sequence data. We employed DNA from a nuclear protein-coding gene (histone H3), two nuclear ribosomal genes (18S rRNA and the D3 expansion fragment of ...
Akiko Okusu +3 more
core

