Malacologia最新文献_第4页

Ontogenetic Shifts of Predatory Strategies by the Carnivorous Gastropod Acanthina monodon (Pallas, 1774) 食肉腹足动物棘足动物捕食策略的个体发生变化(Pallas, 1774)

IF 1.3 4区生物学

Malacologia Pub Date : 2021-08-10 DOI: 10.4002/040.064.0105

J. Büchner-Miranda, L. P. Salas-Yanquin, A. Averbuj, J. Navarro, V. Cubillos, A. Matos, S. Zabala, O. Chaparro

{"title":"Ontogenetic Shifts of Predatory Strategies by the Carnivorous Gastropod Acanthina monodon (Pallas, 1774)","authors":"J. Büchner-Miranda, L. P. Salas-Yanquin, A. Averbuj, J. Navarro, V. Cubillos, A. Matos, S. Zabala, O. Chaparro","doi":"10.4002/040.064.0105","DOIUrl":"https://doi.org/10.4002/040.064.0105","url":null,"abstract":"ABSTRACT Predatory strategies used by carnivorous gastropods may change during their ontogeny. In muricid gastropods attack mechanisms include an accessory boring organ (ABO), radula, labral tooth and/or pedal muscle. However, these mechanisms and their patterns of use in relation to the ontogeny of the carnivorous gastropod remain uncertain. We studied the occurrence of shifts in predatory strategies through the ontogeny of the gastropod Acanthina monodon preying on the mytilid Perumytilus purpuratus. Our results showed a direct relationship between predator and prey size. During attack, the small-sized snails (up to 18 mm shell length, SL) used exclusively the ABO, and medium-sized snails (18–20 mm SL) shifted to using the radula for rasping shells. Meanwhile, the largest-sized snails (> 20 mm SL) used the radula, but also occasionally the pedal muscle and labral tooth, to attack their prey. The site selectivity on the mytilid shell varied according to predatory mechanisms used. The small-sized gastropods used the ABO to drill the center of the prey valves, whereas mid-sized and large-sized snails used the radula and the labral tooth on the valve edges. Occasionally, large-sized snails also used ABO. Shifts in predatory strategies and attacked areas are influenced by the development and consolidation of structures involved in the attack as predator size increased. The incorporation of trace elements during rachidian teeth growth may enable major resistance to friction against carbonate prey valves, as well as the appearance and development of the labral tooth, play relevant roles in the predatory mechanism shifts, which allows the consumption of larger prey. These patterns described evidences the gastropod's predatory behaviour in terms of energetic gain while minimizing the risk of the predator itself being preyed on.","PeriodicalId":49895,"journal":{"name":"Malacologia","volume":"64 1","pages":"93 - 108"},"PeriodicalIF":1.3,"publicationDate":"2021-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42681647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Phenotypic Features of Dimya cf. Japonica (Bivalvia, Dimyidae) from Niue Island (South Pacific) with Accounts on Its Phylogeny and Taxonomic Relationships 南太平洋纽埃岛日本Dimya的表型特征及其系统发育和分类学关系

IF 1.3 4区生物学

Malacologia Pub Date : 2021-08-10 DOI: 10.4002/040.064.0107

Luiz Ricardo L. Simone, V. S. do Amaral

引用次数: 0

A Limpet (Lottiidae), Introduced to Sicily, is Traced to Its Homeland in Sri Lanka and Described as a New Species 引进西西里岛的一种帽贝(帽贝科)，被追溯到它在斯里兰卡的家乡，并被描述为一个新种

IF 1.3 4区生物学

Malacologia Pub Date : 2021-08-10 DOI: 10.4002/040.064.0104

D. Scuderi, T. Nakano, D. Eernisse

{"title":"A Limpet (Lottiidae), Introduced to Sicily, is Traced to Its Homeland in Sri Lanka and Described as a New Species","authors":"D. Scuderi, T. Nakano, D. Eernisse","doi":"10.4002/040.064.0104","DOIUrl":"https://doi.org/10.4002/040.064.0104","url":null,"abstract":"ABSTRACT Continuing molecular and morphological investigations of a limpet recently reported as introduced to Sicily in the Mediterranean Sea have revealed it to be an undescribed species of Lottia Gray, 1833, a genus that is native to Sri Lanka and vicinity in the northern Indian Ocean. The genetic and morphological features of the limpets compared from Sicily and Sri Lanka correspond so closely that we do not hesitate to describe it collectively as Lottia iani n. sp., with type locality of Tangalle on the coast of Sri Lanka. Much is still unknown about its native range, when and how it arrived in Sicily, whether it is capable of impacting native species, and whether its introduction might be more widespread in the Mediterranean than just the particular eastern Sicilian localities where it has been observed. It is plausible that the introduction of L. iani to Sicily could have resulted from recent expansions to the Suez Canal, which is known to have led to other species introductions in recent years. Other possibilities include an introduction related to shipping or mariculture activities. However it managed to arrive, this limpet species has clearly been able to establish a self-recruiting local population at particular Sicilian localities with rocky volcanic shores.","PeriodicalId":49895,"journal":{"name":"Malacologia","volume":"64 1","pages":"79 - 92"},"PeriodicalIF":1.3,"publicationDate":"2021-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42705413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Intraspecific Variation in the Common Pea Clam, Pisidium casertanum (Poli, 1791) (Bivalvia: Sphaeriidae): A Geometric Morphometric Analysis 普通豌豆蛤的种内变异，Pisidium casertanum (Poli, 1791)(双壳目:球形蛤科):几何形态计量学分析

IF 1.3 4区生物学

Malacologia Pub Date : 2021-03-01 DOI: 10.4002/040.063.0203

Hanane Rassam, C. Albrecht, R. Sousa, M. Lopes‐Lima, H. Benaissa, M. Ghamizi

{"title":"Intraspecific Variation in the Common Pea Clam, Pisidium casertanum (Poli, 1791) (Bivalvia: Sphaeriidae): A Geometric Morphometric Analysis","authors":"Hanane Rassam, C. Albrecht, R. Sousa, M. Lopes‐Lima, H. Benaissa, M. Ghamizi","doi":"10.4002/040.063.0203","DOIUrl":"https://doi.org/10.4002/040.063.0203","url":null,"abstract":"ABSTRACT The morphological plasticity of bivalve species may impair their correct identification. Pisidium species (Sphaeriidae) are difficult to distinguish, notably the common pea clam, Pisidium casertanum (Poli, 1791), which is a polymorphic species, often misidentified and confused with other Pisidium species. This is especially true since this species is the most euryecious of the genus, being able to colonize very different habitats. In this study, elliptic Fourier Analysis, a geometric morphometric method, was used to assess intraspecific variation in P. casertanum. Sampling of specimens was done in three habitat types – springs, lakes and streams – in the Mediterranean biodiversity hotspot region, using the Sebou basin in Morocco as a study area. In addition to the geometric morphometric method, linear measurements of the shell were used to assess growth patterns. Results revealed differences in the hinge plate, which is broader in shells collected from lakes, whereas it is higher in shells of springs. The geometric morphometric method clearly showed shape differences between individuals of the three habitats. Specimens of lakes were the most distinguishable, presenting more elongated shells than those from springs and streams, which are shorter but higher. Individuals from the three habitat types presented a negative allometric growth pattern whereby the shell of animals grows more slowly in height than in length. The use of linear and geometric morphometric methods led to conclude that the morphology of P. casertanum is, in fact, highly influenced by its environment, in particular, its habitat type.","PeriodicalId":49895,"journal":{"name":"Malacologia","volume":"63 1","pages":"183 - 194"},"PeriodicalIF":1.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41371328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Back Matter 回到问题

IF 1.3 4区生物学

Malacologia Pub Date : 2021-03-01 DOI: 10.4002/040.063.0210

引用次数: 0

A Review of the Molluscan Microbiome: Ecology, Methodology and Future 软体动物微生物组的生态学、方法论和未来

IF 1.3 4区生物学

Malacologia Pub Date : 2021-03-01 DOI: 10.4002/040.063.0208

B. Chalifour, Jingchun Li

引用次数: 5

Redescription of the Flapjack Octopod, Opisthoteuthis bruuni (Cephalopoda: Opisthoteuthidae), from the Southeastern Pacific Ocean and Evolutionary Relationships of Cirrate Octopods 东南太平洋的斑尾章鱼Opisthotuthis bruni（头足目：斑尾章鱼科）的重新描述和环状章鱼的进化关系

IF 1.3 4区生物学

Malacologia Pub Date : 2021-03-01 DOI: 10.4002/040.063.0201

M. C. Pardo-Gandarillas, Mariana Díaz-Santana-Iturrios, Mark C. Fenwick, R. Villanueva, C. Ibáñez

{"title":"Redescription of the Flapjack Octopod, Opisthoteuthis bruuni (Cephalopoda: Opisthoteuthidae), from the Southeastern Pacific Ocean and Evolutionary Relationships of Cirrate Octopods","authors":"M. C. Pardo-Gandarillas, Mariana Díaz-Santana-Iturrios, Mark C. Fenwick, R. Villanueva, C. Ibáñez","doi":"10.4002/040.063.0201","DOIUrl":"https://doi.org/10.4002/040.063.0201","url":null,"abstract":"ABSTRACT Cirrate octopods are considered to resemble the ancestor of all octopuses. Cirrates inhabit the deep ocean and are characterized by the presence of fins, a cartilaginous inner shell and a single row of suckers alternating with pairs of cirri thus comprising uniserial suckers and biserial cirri. The objective of this contribution is to improve the taxonomy of Opisthoteuthis bruuni from the southeastern Pacific Ocean and to suggest a new hypothesis of cirrate phylogeny. Given that the most complete molecular data set for cirrates available in public databases is comprised almost exclusively of 16S rRNA gene sequences, we compared the morphological and mitochondrial gene 16S rRNA data generated in this study from the genus Opisthoteuthis from the southeastern Pacific Ocean. Additionally, we sequenced Opisthoteuthis chathamensis, Opisthoteuthis mero and Luteuthis dentatus from the southwestern Pacific, as along with Cirroctopus mawsoni from Antarctic waters. The morphological data and the phylogenetic analysis confirm the status of Opisthoteuthis bruuni as a member of genus Opisthoteuthis and the family Opisthoteuthidae. This re-description includes the first morphological characterization of the male and female adult stage of O. bruuni, in addition to reporting geographic and bathymetric range extensions. Opisthoteuthis bruuni presents conspicuous morphological features (small terminal fins, short cirri and U-shaped shell). Our phylogenetic tree supports three families: Cirroctopodidae, Cirroteuthidae and Opisthoteuthidae, which is different from the phylogenetic arrangements previously reported.","PeriodicalId":49895,"journal":{"name":"Malacologia","volume":"63 1","pages":"155 - 169"},"PeriodicalIF":1.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48382585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Pyramidellidae (Gastropoda: Heterobranchia) from the End of the World 世界尽头的锥虫科（腹足目：异鳃亚目）

IF 1.3 4区生物学

Malacologia Pub Date : 2021-03-01 DOI: 10.4002/040.063.0205

Javier Di Luca, Marina Güller, D. Zelaya

{"title":"Pyramidellidae (Gastropoda: Heterobranchia) from the End of the World","authors":"Javier Di Luca, Marina Güller, D. Zelaya","doi":"10.4002/040.063.0205","DOIUrl":"https://doi.org/10.4002/040.063.0205","url":null,"abstract":"ABSTRACT Current knowledge on the pyramidellids from the southern tip of South America appears restricted to a couple of species described in the beginning of the 20th century and a few taxa subsequently reported from this area, including some species recognized as new, but never formally described. This study fills this gap in the knowledge by performing the first revision on the diversity of Pyramidellidae occurring in the Magellanic Province. The material for this study arises from extant collections made along the Atlantic and Pacific coasts of Patagonia, the Beagle Channel, the Magellan Strait and in Burdwood Bank; this information was supplied with specimens from museum collections. As part of this study, eight pyramidellid species, belonging to the genera Turbonilla, Fargoa, Menestho and Brachystomia are recognized from the Magellanic Province, including five species new to science: Turbonilla deseadensis n. sp., Menestho beaglensis n. sp., M. patagonica n. sp., Brachystomia conica n. sp. and B. tenuilirata n. sp. The distinctive characters of Menestho, a genus frequently misunderstood in the past, are also discussed. The presence of Menestho and Brachystomia are here documented for the first time for the southern tip of South America. In addition, a neotype for Turbonilla strebeli Strebel, 1905 (non Verrill, 1880) is here designated.","PeriodicalId":49895,"journal":{"name":"Malacologia","volume":"63 1","pages":"225 - 242"},"PeriodicalIF":1.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49425835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review of the Genus Pseudiberus Ancey, 1887 (Eupulmonata: Camaenidae) in Shandong Province, China 文章标题山东伪蠓属，1887(假蠓纲:假蠓科)述评

IF 1.3 4区生物学

Malacologia Pub Date : 2021-03-01 DOI: 10.4002/040.063.0207

Guoyi Zhang, Min Wu, F. Köhler, Teng-Liang Liu

{"title":"Review of the Genus Pseudiberus Ancey, 1887 (Eupulmonata: Camaenidae) in Shandong Province, China","authors":"Guoyi Zhang, Min Wu, F. Köhler, Teng-Liang Liu","doi":"10.4002/040.063.0207","DOIUrl":"https://doi.org/10.4002/040.063.0207","url":null,"abstract":"ABSTRACT The genus Pseudiberus Ancey, 1887, in Shandong, China, distributed in the mid to the south mountainous areas of the province, represents the largest terrestrial mollusks in this region. By molecular phylogenetic inference and genetic distance comparison based on ITS2 + 16S sequences, P. tectumsinense tectumsinense (Martens, 1873), P. tectumsinense zenonis (Gredler, 1882), P. tectumsinense anderssoni (Odhner, 1925) and P. tectumsinense depressus (Yen, 1935), are confirmed to be subspecies under P. tectumsinense (Martens, 1873). Pseudiberus tectumsinense pingi, new subspecies, is proposed to be new based on shell morphology, anatomy, and evidence of molecular phylogeny. Pseudiberus futtereri (Andreae, 1900) is removed from the species list of Shandongese Pseudiberus. The proximal accessory sac, observed in all the anatomically known Pseudiberus from Shandong, is described for the first time in dart sac apparatus from the bradybaenine snails. The variations and patterns of the proximal accessory sac among Pseudiberus tectumsinense subspecies and P. chentingensis distributed east to the Taihangshan Mountain Chain are examined. The close relationship among Shandong's Pseudiberus might be indicative of their rather recent evolutionary divergence, which was possibly driven by allopatric isolation of populations confined to refugial habitats like isolated mountain tops surrounded by extensive flood plains.","PeriodicalId":49895,"journal":{"name":"Malacologia","volume":"63 1","pages":"257 - 284"},"PeriodicalIF":1.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44529927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Evidence of a Biogenic Mineralization Process in Vermetid Feeding Mucus as Revealed by Raman Spectroscopy and Scanning Electron Microscopy 拉曼光谱和扫描电子显微镜揭示了蚯蚓粪中生物矿化过程的证据

IF 1.3 4区生物学

Malacologia Pub Date : 2021-03-01 DOI: 10.4002/040.063.0206

B. Rezende, Paula Spotorno-Oliveira, S. D’ávila, L. Maia, L. F. Cappa de Oliveira

{"title":"Evidence of a Biogenic Mineralization Process in Vermetid Feeding Mucus as Revealed by Raman Spectroscopy and Scanning Electron Microscopy","authors":"B. Rezende, Paula Spotorno-Oliveira, S. D’ávila, L. Maia, L. F. Cappa de Oliveira","doi":"10.4002/040.063.0206","DOIUrl":"https://doi.org/10.4002/040.063.0206","url":null,"abstract":"ABSTRACT Using analytical (Raman spectroscopy) and imaging (scanning electron microscopy) approaches, we evidenced a biogenic mineralization process in the pedal mucus of the vermetids Eualetes tulipa and Petaloconchus varians. Raman spectra showed the presence of main bands around v1(CO) 1,085, n4(OCO) 717 and 705 cm-1 attributed to stretching modes of calcium carbonate crystallized as calcite and aragonite. SEM images showed the presence of aragonite needles and rhombohedral crystals of calcite in the mucus. Secondary nucleation from calcium carbonate precursors is the most probably pathway for the formation and growth of calcium carbonate crystals in feeding mucus of E. tulipa and P. varians. The tube-like shells of vermetids are very plastic. They are capable of continuously modify the direction of the shell aperture, remolding their tubes and building terminal structures. As a result, vermetid shells may act as exploratory tubes that allow the snail to profit from a better water flow, avoid obstacles and successfully compete for space. Such plasticity probably demands an extra supply of calcium carbonate, particularly when indeterminate growth is involved, as is the case for species of Eualetes and Petaloconchus; this would explain the functional significance of the biogenic calcium carbonate formation in the feeding mucus.","PeriodicalId":49895,"journal":{"name":"Malacologia","volume":"63 1","pages":"243 - 256"},"PeriodicalIF":1.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43292483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1