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Fig. 1 in A combined morphological and molecular approach in identifying barnacle cyprids from the Matang Mangrove Forest Reserve in Malaysia: essentials for larval ecology studies
Fig. 1. Map of sampling locations at Matang Mangrove Forest Reserve (MMFR) in Perak, Malaysia. Sampling was carried out in April 2011 at sites 1–8 and in June 2012 at sites 9–14.
Fig. 4 in A combined morphological and molecular approach in identifying barnacle cyprids from the Matang Mangrove Forest Reserve in Malaysia: essentials for larval ecology studies
Fig. 4. Histogram showing variations of pair-wise genetic distances computed from 12S-rRNA gene fragment sequences using Kimura 2-parameter model. Note the distribution of within-species variations does not overlap with that of inter-species variation.
Fig. 3. Neighbour-joining tree contructed from partial 12S in A combined morphological and molecular approach in identifying barnacle cyprids from the Matang Mangrove Forest Reserve in Malaysia: essentials for larval ecology studies
Fig. 3. Neighbour-joining tree contructed from partial 12S-rRNA gene fragment sequences of cyprids and adults of barnacle. The sequences were clustered into eight clades, and species name were labelled at the clades containing sequence(s) of identified adult of barnacle. Clades with no sequence of identified barnacle adult clustered within were designated as OTU (Operational Taxonomic Unit). Number of sequences in each clade were also shown. Scale bar denotes 0.02 base substituition per site.
Data from: Fatty acid composition as a function of latitude in barnacle cyprid larvae
<p>In this study, we investigated the fatty acid composition of the non-feeding stage of barnacle larvae (cyprids) using an integrative (larvae–environment) and comparative (latitudinal) approach. We measured fatty acids in the pelagic particulate matter and cyprids from <em>Chthamalus bisinuatus</em>, <em>C. proteus</em>, and <em>Semibalanus</em> <em>balanoides</em> from tropical to polar (Arctic) latitudes to identify potential food sources during the feeding larval stages (nauplius) that precede the cyprids and to ascertain larval capacity to integrate neutral (energetic) and polar (structural) fatty acids. </p> <p>Here we provide the complete dataset of all fatty acids detected both in i) the total particulate matter (TPM) present in the water column, and ii) the cyprid larvae of the different barnacle species. This could be useful in comparing data with future studies investigating fatty acid trophic markers in nearshore habitats. Raw data of biophysical paramateres includes cyprid i) size, ii) supply and (iii) settlement, as well as temperature collected using waterproof loggers (HOBO Pendant® Temperature/Light 64K).</p> <p>Image provided corresponds to the cyprid of the acorn barnacle <em>Semibalanus balanoides</em>, showcasing multiple lipid droplets, ie., the cyprid's main lipid storage organelles that store fat in the form of neutral lipids.</p> <p> </p>
Fig. 5 in Bivalve-barnacle pseudoplanktonic colonisation of wood from the Toarcian, Lower Jurassic, Strawberry Bank Lagerstätte, Somerset, UK
Fig. 5. Detail of the barnacle Toarcolepas mutans Gale and Schweigert, 2015, from upper surface of BRLSI.M3941, the Toarcian of Strawberry Bank, Somerset. In C, D, individuals are "kippered"—split along the sagittal plane. Locations of specimens on concretion shown in dashed boxes in SOM: fig. 2. Scale bars 5 mm.
Fig. 2. Fossilized driftwood association, BRLSI.M3941 in Bivalve-barnacle pseudoplanktonic colonisation of wood from the Toarcian, Lower Jurassic, Strawberry Bank Lagerstätte, Somerset, UK
Fig. 2. Fossilized driftwood association, BRLSI.M3941, the Toarcian of Strawberry Bank, Somerset, upper surface of limestone concretion showing wood mould and associated specimens of Pseudomytiloides dubius (Sowerby, 1828) and Toarcolepas mutans Gale and Schweigert, 2015. See SOM: fig. 1 for orientation imagery.
Fig. 1 in Bivalve-barnacle pseudoplanktonic colonisation of wood from the Toarcian, Lower Jurassic, Strawberry Bank Lagerstätte, Somerset, UK
Fig. 1. Location and stratigraphy of the Strawberry Bank Lagerstätte and associated beds. A. Location of Ilminster, Somerset, England, UK and Lower Jurassic outcrop pattern in the area. B. Limestone concretion of the Strawberry Bank Lagerstätte exposed in situ north of Ilminster during excavations of the site in 2019. Folding knife is 9 cm long. C. Stage information, and ammonite zones and subzones. D. Local lithostratigraphic scheme for the same timescale. E. Simplified sedimentary log at Strawberry Bank with the Strawberry Bank Lagerstätte shaded in pink (after Williams et al. 2015 and Boomer et al. 2021).
Fig. 4 in Bivalve-barnacle pseudoplanktonic colonisation of wood from the Toarcian, Lower Jurassic, Strawberry Bank Lagerstätte, Somerset, UK
Fig. 4. Three dimensional rendering of the X-ray computed tomographic data of fossilized driftwood association, BRLSI.M3941 from the Toarcian of Strawberry Bank, Somerset. Dashed lines delineate the top and bottom edge of the wood mould (see SOM: fig. 1 for orientation imagery).
Fig. 3 in Bivalve-barnacle pseudoplanktonic colonisation of wood from the Toarcian, Lower Jurassic, Strawberry Bank Lagerstätte, Somerset, UK
Fig. 3. Detail of Pseudomytiloides dubius (Sowerby, 1828) specimens from upper surface of BRLSI.M3941, Toarcian of Strawberry Bank, Somerset, showing stacking of individuals, articulation and orientation in relation to the wood. Dashed line in A marks the top edge of the wood mould. Locations of specimens on concretion correspond to numbered specimens on SOM: fig. 2 as follows: A, specimens 40 to 44; B, specimen 1; C, specimen 20; D, specimen 38.
FIGURE 6 in A Phylogenetic Overview of Sponge-inhabiting Barnacles and Their Host Specificity (Crustacea, Cirripedia)
FIGURE 6. Bayesian phylogenetic tree based from CO1 and H3 concatenated sequence data (869 bp). Numbers at nodes represent Bayesian posterior probability values. Numbers on branches represent substitutions per site on that branch. (A) Clade of Acastinae from Philippines and Madagascar in Phyllospongiinae hosts (blue-shaded box); (B) Clade of Bryozobiinae (3 genera) barnacles from Madagascar in encrusting sponge hosts Clathria (Microciona) sp. and Monanchora aff. unguiculata (orange-shaded box); (C) Clade of Eoatria sp. (Bryozobiinae) and 3 undescribed Acastinae barnacles in encrusting sponges (purple-shaded box). All barnacle taxa in this analysis are in the family Archaeobalanidae. All of the taxa identified as members of the Acastinae appear to be undescribed species. Semibalanus balanoides is used as the outgroup in the analysis and is not a sponge-inhabiting species. Numbers on taxon labels are CASIZ specimen catalog numbers.
Fig. 3 in The oldest platylepadid turtle barnacle (Cirripedia, Coronuloidea): a new species of Platylepas from the Lower Pleistocene of Italy
Fig. 3. †Platylepas mediterranea sp. nov., holotype (MSNC 4562). a. Interno-alar view. Note the strongly appressed sheath exhibiting distinct transverse grooves (arrows) and the short, triangular, wedge-like, transverse septa on the sutural edge of the alar portion of the compartment. b. Close-up of the outer surface of the compartment. The outer lamina is only locally preserved; where it is eroded, longitudinally elongated septa and canals are visible. The intersection between longitudinal septa and transverse growth ridges is occasionally marked by small knobs.
Fig. 1 in The oldest platylepadid turtle barnacle (Cirripedia, Coronuloidea): a new species of Platylepas from the Lower Pleistocene of Italy
Fig. 1. Locality map, showing provenance (white star) of the holotype of the new platylepadid (MSNC 4562) described herein. All images from Google Earth.
Fig. 2 in The oldest platylepadid turtle barnacle (Cirripedia, Coronuloidea): a new species of Platylepas from the Lower Pleistocene of Italy
Fig. 2. †Platylepas mediterranea sp. nov., holotype, single right carinolateral compartment (CL1 or CL2) collected at Cala S. Antonino (Cape Milazzo, Sicily, southern Italy) from Lower Pleistocene (Gelasian) deposits (MSNC 4562). a. Outer view. b. Inner view. c. Alar view. d. Radial view. e. Apical view. f. Basal view.
Fig. 3 in First Record Of The Parasitic Barnacle Sacculina Scabra Boschma, 1931 (Crustacea: Cirripedia: Rhizocephala) Infecting The Shallow Water Swimming Crab Charybdis Truncata
Fig. 3. Colleteric gland tubules of Sacculina scabra on the A) left hand side and B) right hand side of the visceral mass. Scale bar in m.
Fig. 2 in First Record Of The Parasitic Barnacle Sacculina Scabra Boschma, 1931 (Crustacea: Cirripedia: Rhizocephala) Infecting The Shallow Water Swimming Crab Charybdis Truncata
Fig. 2. Transverse sections of A) male receptacles, B) receptacle duct near the male receptacles showing the thick lining, C) folded lining (f) of receptacle duct, D) the paired receptacle ducts joined in the same chamber, E) the receptacle duct separated again at the region of the duct opening, F) receptacle duct opening, showing thick, cuticular lining. All the figures are to the same scale. Scale bar in m.
Fig. 1 in First Record Of The Parasitic Barnacle Sacculina Scabra Boschma, 1931 (Crustacea: Cirripedia: Rhizocephala) Infecting The Shallow Water Swimming Crab Charybdis Truncata
Fig. 1. Drawing of the externa of Sacculina scabra from a male and female Charybdis truncata. Scale bar in mm.
Linked collectors and determiners for: Descriptions of four new sponge-inhabiting barnacles (Thoracica: Archaeobalanidae: Acastinae).
Natural history specimen data linked to collectors and determiners held within, "Descriptions of four new sponge-inhabiting barnacles (Thoracica: Archaeobalanidae: Acastinae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/4dac0eec-895f-4cf5-b86e-367198d2ba9a">https://bionomia.net/dataset/4dac0eec-895f-4cf5-b86e-367198d2ba9a</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/4dac0eec-895f-4cf5-b86e-367198d2ba9a">https://gbif.org/dataset/4dac0eec-895f-4cf5-b86e-367198d2ba9a</a>. Formatted as a Frictionless Data package.
Fig. 4 in A new genus and species of barnacle (Cirripedia, Verrucomorpha) associated with vents of the Lau Back-Arc Basin: its gross morphology, inferred first juvenile stage and affinities
Fig. 4. — Schematic plan views and transverse sections of grades of skeletal organization from the most primitive sessile barnacles (A, Brachylepadomorpha) through the asymmetrical sessile barnacles (B-H, Verrucomorpha). Of the eight verrucid genera currently recognized (Young 1998) only the four most representative ones (Altiverruca, Newmaniverruca, Metaverruca and Verruca s.s.) are depicted here. Right sides are to the viewers right and rostral ends are downward in plan views or coming out of the page in transverse sections. The transverse sections are slightly rostral of the rostro-carinal gap or suture. While there are numerous whorls of imbricating plates standing in tiers four plates high in brachylepadomorphs, and on the movable side of neoverrucids, only those of the R-C gap are labeled. Abbreviations: C, R, carina and rostrum; cl1-4, l1-4, rl1-4, carinolateral, lateral and rostrolateral tiers of imbricating plates respectively; cl, rl, the pair of imbricating plates in proverrucids; FS, FT, fixed scutum and tergum; hl, hinge line; L, median latus (completely lost in proverrucids and verrucids); m, myophore; MS, MT, movable scutum and tergum; sam, scutal adductor muscle; S, T, normal terga and scuta in brachylepadomorphs; dashed horizontal lines: membranous basis (transverse sections F-H after Young 1998).
TABLE 1 in A new genus and species of barnacle (Cirripedia, Verrucomorpha) associated with vents of the Lau Back-Arc Basin: its gross morphology, inferred first juvenile stage and affinities
<p>TABLE 1. — Seta/article ratios for four neolepadines compared to four sessile barnacles also from vents: the ratio (the width of the article of an intermediate segment of cirrus VI as the denominator and the length of longest seta of that article as the numerator), while highest in the bacteria-farming neolepadine (Lau sp. A), is lowest in <i>Neoverruca</i>. That for <i>Imbricaverruca</i> as well as for <i>Neobrachylepas</i> are not only similar to each other but fall in the low end of the range for vent barnacles.</p><table><tbody><tr><th></th><th><b>Measurement in mm</b></th><th><b>Ratio</b></th><th><b>Reference</b></th></tr></tbody><tbody><tr><th></th><td><b>article width</b></td><td><b>setal length</b></td><td><b>s/a</b></td><td></td></tr><tr><th>Lau sp. A</th><td>0.33</td><td>4.60</td><td>14.0</td><td>Southward & Newman 1998</td></tr><tr><th>Lau sp. B</th><td>0.10</td><td>0.67</td><td>6.7</td><td><i>idem</i></td></tr><tr><th>South-East Indian Ridge</th><td>0.18</td><td>1.70</td><td>9.4</td><td><i>idem</i></td></tr><tr><th>Lihir volcano</th><td>0.30</td><td>1.85</td><td>6.2</td><td><i>idem</i></td></tr><tr><th><i>Neobrachylepas</i></th><td>0.07</td><td>0.31</td><td>4.4</td><td>Newman & Yamaguchi 1995</td></tr><tr><th><i>Neoverruca</i></th><td>0.25</td><td>0.70</td><td>2.8</td><td>Newman & Hessler 1989</td></tr><tr><th><i>Imbricaverruca</i></th><td>0.15</td><td>0.68</td><td>4.5</td><td>This paper</td></tr><tr><th><i>Eochionelasmus</i> (NFB)</th><td>0.25</td><td>1.65</td><td>6.6</td><td>Yamaguchi & Newman 1990</td></tr></tbody></table>
Fig. 25 in Four new sponge-inhabiting barnacles of the genus Acasta (Thoracica: Archaeobalanidae: Acastinae) from the Indo-Pacific
Fig. 25. Acasta sandwichi sp. nov., cirri and penis (holotype). A, Cirrus IV, basal and middle annuli; B, Distal part of penis. Scale bars in µm.
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