Drilling in the dorid species <i>Vayssierea</i> cf. <i>elegans</i> (Gastropoda: Nudibranchia): Functional and comparative morphological aspects

Mikhlina, Anna; Tzetlin, Alexander B.; Ekimova, Irina; Vortsepneva, Elena

doi:10.1002/jmor.20922

Cited by 10 publications

(7 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Overall the structure of the buccal mass and the anterior part of the digestive system has been of high research interest throughout the decades (e.g. Geddes, 1879 ; Plate, 1897 ; Amaudrut, 1898 ; Herrick, 1906 ; Crofts, 1929 ; Carriker, 1943 ; Starmühlner, 1952 ; Hubendick, 1956 ; Graham, 1964 , 1973 ; Fretter, 1965 ; Carriker et al, 1974 ; Morris and Hickman, 1981 ; Guralnick and Smith, 1999 ; Katsuno and Sasaki, 2008 ; Mikhlina et al, 2018 ; Krings et al, 2019a ), but most of the studies mentioned above, with a few exceptions, focus on single or few species, due to the overflowing molluscan biodiversity. Interestingly, although much is known about this feeding organ, basic principles like the radular movement during feeding are not known for the majority of molluscs.…”

Section: Introductionmentioning

confidence: 99%

Not just scratching the surface: Distinct radular motion patterns in Mollusca

et al. 2020

View full text Add to dashboard Cite

The radula is the organ for mechanical food processing and an important autapomorphy of Mollusca. Its chitinous membrane, embedding small radular teeth, is moved by the set of muscles resulting in an interaction with the ingesta, tearing it and collecting loosened particles. Radulae and their teeth can be quite distinct in their morphology and had been of high research interest, but only few studies have examined the basic functional principles of this organ, the movement and motion during feeding action. Here, the radular motion of 20 representative species, belonging to four major gastropod lineages (Vetigastropoda, Neritimorpha, Caenogastropoda, Heterobranchia) and Polyplacophora, were recorded and classified. Comparisons of the video footage with the SEM images of the radula resulted in the recognition of functional tooth rows and the correct position of the teeth during feeding. We identified six different types of radular movements, including rotations and bending of the radula itself. In each movement type, different structures act as counter bearings enabling the animals to grab and tear food.

show abstract

Section: Introductionmentioning

confidence: 99%

Not just scratching the surface: Distinct radular motion patterns in Mollusca

et al. 2020

View full text Add to dashboard Cite

show abstract

“…nov. actively prey on nudibranch species, so the specimens use their hook-shaped teeth to catch its prey. This might also be the case of the teeth in Vayssierea, which specialized for a drilling feeding mode, and posterior extraction of the tube worms (Mikhlina et al 2019). This may indicate that there is more relationship between Gymnodoris and Vayssierea.…”

Section: The Phylogenetic Position Of Vayssiereamentioning

confidence: 99%

Not one but two invasions of the Atlantic Ocean from the Indo-Pacific: Genetic and morphologic study of the slug genus Vayssierea Risbec, 1928 (Mollusca, Nudibranchia)

Miralda,

Moles

2023

Preprint

View full text Add to dashboard Cite

Vayssierea is an understudied nudibranch genus characterized by its orange colouration and small size of up to 5 mm long. There are four described species so far, distributed in the Indo-Pacific Ocean. Here, individuals of Vayssierea have been recorded for the first time in the North Atlantic Ocean, in the Canary Islands (Spain). This study aims to evaluate the systematic and taxonomy status, and distribution of the genus through a multilocus phylogenetic analysis and a morphological and radular analysis. Phylogenetic results show the monophyly of the genus, with a particularly long branch that may represent its fast evolutionary rate compared to its counterparts. The systematics of the genus are clarified, and we provide evidence that Vayssierea is included in the new subfamily Okadaiinae stat. nov. within Polyceridae. According to the species delimitation test, four different species have been sequenced from Russia to Australia in the Indo-Pacific plus our records from the Atlantic, but more information is needed to identify them. Nevertheless, our specimens from the Canary Islands correspond to two different species, one identical to the Australian species. Bearing in mind they lack a planktonic larval phase, we hypothesize that they have arrived by shipping transportation or aquarium releases, becoming an invasive species of the Atlantic Ocean.

show abstract

“…Almost all nudibranchs are carnivorous, but several species: Bathydoris hodgsoni Eliot, 1907, Prodoris clavigera (Thiele, 1912) and Dendronotus frondosus (Ascanius, 1774), are omnivorous (Ekimova et al, 2019; Göbbeler & Klussmann‐Kolb, 2011; McDonald & Nybakken, 1997; Wägele, 1989). The wide range of feeding mechanisms (from rasping and grazing to engulfing and drilling) is a key feature of nudibranch molluscs (Mikhlina et al, 2015, 2019; Nybakken & McDonald, 1981; Young, 1969). Feeding mechanism, diet preference and morphology of the buccal armature are interelated features (Cattaneo‐Vietti & Balduzzi, 1991; Nybakken & McDonald, 1981; Wägele, 2004; Young, 1969; Göbbeler & Klussmann‐Kolb, 2011; Ekimova et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Morphology of the buccal apparatus of Dendronotus frondosus (Gastropoda: Nudibranchia)

Mikhlina

Vortsepneva

2023

Journal of Morphology

Self Cite

View full text Add to dashboard Cite

Nudibranchia is the order of Gastropoda, which is known for its high diversity of dietary specializations and a diversified morphology of the buccal armature. The characters of the buccal armature are adaptive to the feeding mechanisms and diet preferences, but they also are phylogenetically informative. The morphological differences in the buccal armature imply different mechanisms of the synthesis and morphology of the formation zones. Here, we report new data on the morphology of the buccal complex in a cladobranch species with broad radula, Dendronotus frondosus, using light microscopy, transmission and scanning elctron microscopy and computer-based three-dimensional reconstruction and compare them with those on other nudibranchs. We report the presence of protective chitinous spindles in the epithelia of the oral tube and esophagus, which suggests the presence of Cnidaria in the diet of the studied mollusc species. Similar to other Cladobranchia, the jaw plate of D. frondosus is synthesized by the layer of gnathoblasts located posteriorly in the epithelial fold. Near the zone of jaw synthesis, the gnathoblasts with concentric granular endoplasmic reticulum structures were found. This may indicate the turnover of gnathoblasts during the life of a specimen. Despite that D. frondosus has a broad radula, the zone of its synthesis does not split into two parts, unlike other molluscs with broad radulae. A single radular tooth is formed by a few cells, such as in other Nudibranchia. The number of odontoblasts per tooth in D. frondosus is not defined by a tooth size. At the same time, the linear dimensions of the cells secreting radular teeth depend on the size of the teeth synthesized by them.

show abstract

Drilling in the dorid species Vayssierea cf. elegans (Gastropoda: Nudibranchia): Functional and comparative morphological aspects

Cited by 10 publications

References 39 publications

Not just scratching the surface: Distinct radular motion patterns in Mollusca

Not just scratching the surface: Distinct radular motion patterns in Mollusca

Not one but two invasions of the Atlantic Ocean from the Indo-Pacific: Genetic and morphologic study of the slug genus Vayssierea Risbec, 1928 (Mollusca, Nudibranchia)

Morphology of the buccal apparatus of Dendronotus frondosus (Gastropoda: Nudibranchia)

Contact Info

Product

Resources

About