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53 results for “Acasta”
Fig. 1 in Four new sponge-inhabiting barnacles of the genus Acasta (Thoracica: Archaeobalanidae: Acastinae) from the Indo-Pacific
Fig. 1. Acasta turriformis sp. nov., shell, general view and compartments (holotype: A, C–E; paratype: B). A, B, Complete shell, left side (long narrow slits between compartments indicated); C, Rostrum, external surface; D, Carinolatera 1 and 2, internal surface; E, Margin of basis. Abbreviations: ba = basis, ca = carina, cl1 = carinolatus 1, cl2 = carinolatus 2, r = rostrum. Scale bars in µm.
Fig. 5 in Four new sponge-inhabiting barnacles of the genus Acasta (Thoracica: Archaeobalanidae: Acastinae) from the Indo-Pacific
Fig. 5. Acasta turriformis sp. nov., mouth parts (SEM, paratype). A, Labrum with mandibular palp; B, Mandibular palp, inner surface; C, Enlarged proximal part of mandibular palp, inner surface; D, E, Mandibles, outer surface; F, Enlarged lower part of mandible, outer surface; G, H, Maxillules, outer and inner surfaces; I, Enlarged lower part of maxillule, inner surface; J, Enlarged lower part of maxillule, outer surface. Abbreviations: lb = labrum, mdp = mandibular palp. Scale bars in µm.
Fig. 3 in Four new sponge-inhabiting barnacles of the genus Acasta (Thoracica: Archaeobalanidae: Acastinae) from the Indo-Pacific
Fig. 3. Acasta turriformis sp. nov., mouth parts (holotype). A, Labrum with mandibular palps; B, Enlarged crests of labrum; C, Mandible; D, E, Maxillules. Scale bars in µm.
Fig. 4 in Four new sponge-inhabiting barnacles of the genus Acasta (Thoracica: Archaeobalanidae: Acastinae) from the Indo-Pacific
Fig. 4. Acasta turriformis sp. nov., cirri (holotype). A, Cirrus IV, basal part; B, Cirrus V, basal part. Scale bars in µm.
Fig. 2 in Four new sponge-inhabiting barnacles of the genus Acasta (Thoracica: Archaeobalanidae: Acastinae) from the Indo-Pacific
Fig. 2. Acasta turriformis sp. nov., opercular plates (holotype). A, B, Left scutum, internal and external view; C, D, Right scutum, external and internal view; E, F, Left tergum, external and internal view; G, H, Right tergum, internal and external view. Scale bars in µm.
FIGURE 3A–B in New species of Acasta and Balanus (Balanoidea: Acastinae, Balaninae) from the Early Miocene (Burdigalian) of the Aquitaine Basin, France
FIGURE 3A–B. Acasta martillacensis sp. nov., paratypes (no. 85–12–69 and no. 85–12–70, respectively): A, fragment of paries transversally cut; B, fragment of paries longitudinally cut at sheath level. p, paries; r, rib; sh, sheath; sp, septae; t, tube.
FIGURE 2. A–D in New species of Acasta and Balanus (Balanoidea: Acastinae, Balaninae) from the Early Miocene (Burdigalian) of the Aquitaine Basin, France
FIGURE 2. A–D, Acasta martillacensis sp. nov., holotype (no. 85–12–68), level GA 39191, a shell (basis, plus wall plates) with right scutum which was inside of the shell: A, right side of shell; B, external side of basis; C–D, external and internal side of scutum. E–H, Balanus aculeatus sp. nov., holotype (no. 19–12–23), carina with a fragment of basis in connection: E, basis magnified showing septed tubes; F, external side; G, internal side; H, lateral view.
FIGURE 1 in New species of Acasta and Balanus (Balanoidea: Acastinae, Balaninae) from the Early Miocene (Burdigalian) of the Aquitaine Basin, France
FIGURE 1. Palaeogeographic map of the Early Miocene in the Aquitaine Basin (from Cahuzac & Poignant 2005). Maximum easterly extension of marine influence, and location of some Burdigalian reference sections; the outcrops of Martillac and Saucats (Le Péloua), examined here, are underlined.
FIGURE 14 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 14. Pachylasma sp., general morphology. (A), Shell, top view, fusion sutures between rostrum and two rostrolaterals indicated by arrowheads. (B), Tripartite rostral plate, inner surface, sutures between fused rostrum and two rostrolaterals indicated by arrowheads. (C), Labrum without deep median incision. (D), Mandible of generalized form with incisiform teeth. (E), Protopod of cirrus 6 and caudal appendage. Abbreviations: ca—carina, cap—caudal appendage, cl1—carinolatus 1, cl2— carinolatus 2, rl-r-rl—tripartite rostral plate, sc—scuta. Scale bars in µm.
FIGURE 15 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 15. Phylogenetic reconstruction cladograms of the genus Conopea s.l. and coral inhabiting species of the genus Acasta and the species of the resulting genera, Conopea s.s. (node is indicated by star) and Acasta (node is indicated by circle), (all characters unordered and of equal weight; PAUP, Swofford 1998): (A), (B), with Pachylasma sp. as out-group; (C), (D), without out-group. (A), (C) Bootstrap 50% majority-rule consensus trees. Percentages at nodes denote frequency of occurrence among 100 trees. (B), (D) Neighbor-joining trees.
FIGURE 10 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 10. Scuta of 3 species of genus Conopea (C. calceola—A, B; C. cymbiformis—C, D; and C. scandens—E, F). (A), (D), (F) Inner surface. (B), (C), (E) Outer surface. Scale bars in µm.
FIGURE 13 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 13. Shell morphology of 2 species of genus Acasta from octocorals (Acasta (Conopea) navicula—A–G; A. echinata—H–K). (A), (H) Sell, general appearance, lateral view, host tissue removed. (B) Carinolatus 1, inner view. (C), (D) Left scutum, outer and inner surface. (E), (F) Left tergum, outer and inner surface. (G) Serrated margin of basis. (I) Tergum, outer surface. (J) Scutum, outer surface. (K) Serrated margin of basis. Abbreviations: ba—basis, ca—carina, cl1—carinolatus 1, cl2—carinolatus 2, r—rostrum. Scale bars in µm.
FIGURE 12 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 12. Cirri and penes of 3 species of genus Conopea (C. calceola—A, D, G; C. cymbiformis—B, E, H; C. scandens— C, F, I). (A), (B), (C) Cirri III. (D), (E), (F) Cirri IV, basal segments. (G), (H), (I) Basal parts of penes with basidorsal point. Scale bars in µm.
FIGURE 9 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 9. Shell morphology of 3 species of genus Conopea (C. calceola—A, B, E–G; C. cymbiformis—C, H, I; and C. scandens—D). (A) Shell covered by host tissues, lateral view. (B–D) Shells with host tissues removed, lateral view. (E) Basis. (F) Margin of basis from rectangle area in 'E' showing longitudinal inner tubes/canals with openings/pits for articulation with basal ribs of parietes. (G) Rostrum with longitudinal ribs and internal longitudinal tubes/canals, inner view. (H) Carinolatus 1 with protruding inner ribs and denticulated sutural margin of radius. (I) Carinolatus 2 with protruding inner ribs and denticulated sutural margin of radius. Abbreviations: ba—basis, ca—carina, cl1—carinolatus 1, cl2—carinolatus 2, r—rostrum. Scale bars in µm.
FIGURE 7 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 7. Acasta vivicava sp. nov., opercular plates. (A), (B) Left scutum, inner and outer view. (C) Right scutum, outer view. (D), (E) Left and right terga, outer view. (F), (G) Right and left terga, inner view. Scale bars in µm.
FIGURE 4 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 4. Conopea titani sp. nov., mouth parts. (A) Labrum with palps. (B), (D) Mandibles. (C) Lower part of mandible (inferior angle). (E), (F) Maxillules. (G) Maxillae. Scale bars in µm.
FIGURE 3 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 3. Conopea titani sp. nov., terga. (A), (B) Left tergum, outer and inner view. (C), (D) Right tergum, inner and outer view. Scale bars in µm.
FIGURE 11 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 11. Terga of 3 species of genus Conopea (C. calceola—A, B; C. cymbiformis—C, D; C. scandens—E, F). (A), (D), (E) Inner surface. (B), (C), (F) Outer surface. Scale bars in µm.
FIGURE 6 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 6. Acasta vivicava sp. nov., general appearance, shell compartments. (A), (B) Gall on gorgonian host, lateral and top view, orifice indicated by arrow. (C), (D) Shell, lateral and top view. (E) Margin of basis. (F), (G) Carina, inner and outer view. (H) Carinolatus 2, outer view. Abbreviations: ba—basis, ca—carina, cl1—carinolatus 1, cl2—carinolatus 2, r—rostrum. Abbreviations: bp—basidorsal point of penis. Scale bars in µm.
FIGURE 1 in Revision of the coral-inhabiting genus Conopea (Cirripedia: Archaeobalanidae) with description of two new species of the genera Conopea and Acasta
FIGURE 1. Conopea titani sp. nov., general appearance of shell. (A) Shell covered by underlaying chitinous membrane of gorgonian coenosarc, lateral view. (B) Shell with removed underlaying chitinous membrane of gorgonian coenosarc, lateral view, axis of gorgonian indicated by arrowhead. (C) Inner surface of carinolaterals 1 and 2 showing inner basal ribs of parietes and strong articulation with basis. (D) Part of carinolatus 1 showing deticulated sutural margin of radius. Abbreviations: ba— basis, ca—carina, cl1—carinolatus 1, cl2—carinolatus 2, r—rostrum, ra—radius, rb—inner ribs of parietes. Scale bars in µm.
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