Results 21 to 30 of about 224 (100)

The family Plectopylidae (Gastropoda, Pulmonata) in Laos with the description of two new genera and a new species [PDF]

open access: yes, 2016
Previously only a single plectopylid species, Helix laomontana L. Pfeiffer, 1862 was reported from Laos. Here we erect Naggsia Páll-Gergely & Muratov, gen. n. for H. laomontana based on the description of its reproductive anatomy and radula.
Asami, Takahiro   +2 more
core   +2 more sources

The circulatory system of Penaeus vannamei Boone, 1931—Lacunar function and a reconsideration of the “open vs. closed system” debate

open access: yesJournal of Morphology, Volume 281, Issue 4-5, Page 500-512, April-May 2020., 2020
The morphology of the hemolymph circulatory system of the decapod Penaeus vannamei is investigated. As well as the complex vascular system, distinct lacunae are investigated three‐dimensionally and interpreted on a functional level. Abstract The morphology of hemolymph circulatory systems has been studied in many arthropod groups over the past decades.
Torben Göpel, Christian S. Wirkner
wiley   +1 more source

Phylogeny and systematics of Caudofoveata (Mollusca, Aplacophora) [PDF]

open access: yes, 2018
Caudofoveata is by far the least known group of molluscs. The shell-less, wormshaped caudofoveate molluscs are characterized by a mantle covered in calcareous sclerites, giving them a distinctive, shiny appearance. Caudofoveata consists of 141 recognized
Mikkelsen, Nina Therese
core   +1 more source

On some Opisthobranchs from Cananéia, Brazil [PDF]

open access: yes, 1970
Dez espécies de Cananéia e uma de Ubatuba foram colecionadas. Duas das espécies são novas para a ciência: Coryphella verta e Catriona oba. Elysia serca é comparada com E. clena Marcus (1970, p. 49).
Marcus, Eveline d. B. -R.
core   +2 more sources

Sobre la presència d’Otala xanthodon (Anton, 1838) (Gastropoda: Helicidae) a la península Ibèrica [PDF]

open access: yes, 2021
In this article, the first known established population of Otala xanthodon (Helicidae) is given for the Iberian Peninsula. Some few thousands of live specimens were found at the Sierra de Callosa de Segura mountain system (Baix Segura, Alicante ...
López Soriano, Joaquín   +3 more
core  

Morphology and relationships of the enigmatic stenothecoid pan-brachiopod Stenothecoides: new data from the middle Cambrian Burgess Shale Formation [PDF]

open access: yes, 2021
Bulk sampling of middle Cambrian carbonate units in the lower Burgess Shale Formation (Wuliuan) and the upper Wheeler Formation (Drumian) in Utah have yielded abundant silicified stenothecoids.

core   +1 more source

Phoronidea from Brazil [PDF]

open access: yes, 1959
1. The demarcation of the species of Phoronidea is difficult because of the great variability of the characters which does not enable the fixing of good differential characters yet.
Forneris, Liliana
core   +3 more sources

UEG Week 2023 Poster Presentations

open access: yes, 2023
United European Gastroenterology Journal, Volume 11, Issue S8, Page 535-1498, October 2023.
wiley   +1 more source

Feeding Behavior of Spurilla sp. (Mollusca: Opisthobranchia) with a Description of the Kleptocnidae Sequestered from Its Sea Anemone Prey [PDF]

open access: yes, 2013
Feeding behavior of Spurilla sp. (Mollusca: Opisthobranchia) with a description of the kleptocnidae sequestered from its sea anemone prey. Zoological Studies 51(7): 905-912.
Acuña, Fabian Horacio   +3 more
core  

Age‐Related Involutory Changes in Bursa of Fabricius of Anas crecca: Histomorphometric and Ultrastructural Investigation

open access: yesVeterinary Medicine and Science, Volume 11, Issue 5, September 2025.
This scientific diagram illustrates age‐related changes in the Bursa of Fabricius (BF) of green‐winged teal (Anas crecca) ducks at two developmental stages. In the 8th week, the BF shows maximum maturation with peak morphometric measurements (body weight, bursal dimensions), the thickness of cortex and medulla layers and well‐developed ultrastructure ...
Zeinab Abdel‐Fattah   +6 more
wiley   +1 more source

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