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462 results for “Calcarea”
Figure 6 in Revalidation of Leucetta floridana (Haeckel, 1872) (Porifera, Calcarea): a widespread species in the tropical western Atlantic
Figure 6. Leucetta sp. from Brazil. A, live specimen (photo: G. Muricy); B, triactine I; C, tetractines I; D, triactine II and tetractine II. Scale bars: A = 1 cm, B–D = 100 Mm.
Figure 3. Leucetta microraphis from New Caledonia. A in Revalidation of Leucetta floridana (Haeckel, 1872) (Porifera, Calcarea): a widespread species in the tropical western Atlantic
Figure 3. Leucetta microraphis from New Caledonia. A, preserved specimen; B, triactine I; C, triactine II and several triactines I and tetractines I; D, tetractine I. Scale bars: A = 1 cm; B–D = 100 Mm.
Linked collectors and determiners for: Description of new chiactine-bearing sponges provides insights into the higher classification of Calcaronea (Porifera: Calcarea).
Natural history specimen data linked to collectors and determiners held within, "Description of new chiactine-bearing sponges provides insights into the higher classification of Calcaronea (Porifera: Calcarea)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/f8ebafc8-79ab-4eef-b52b-8c207ff2b1ec">https://bionomia.net/dataset/f8ebafc8-79ab-4eef-b52b-8c207ff2b1ec</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/f8ebafc8-79ab-4eef-b52b-8c207ff2b1ec">https://gbif.org/dataset/f8ebafc8-79ab-4eef-b52b-8c207ff2b1ec</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Taxonomy and phylogeny of calcareous sponges (Porifera: Calcarea: Calcinea) from Brazilian mid-shelf and oceanic islands.
Natural history specimen data linked to collectors and determiners held within, "Taxonomy and phylogeny of calcareous sponges (Porifera: Calcarea: Calcinea) from Brazilian mid-shelf and oceanic islands". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/b3e435ef-67d4-40dc-a7f8-cfd8c520f28f">https://bionomia.net/dataset/b3e435ef-67d4-40dc-a7f8-cfd8c520f28f</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/b3e435ef-67d4-40dc-a7f8-cfd8c520f28f">https://gbif.org/dataset/b3e435ef-67d4-40dc-a7f8-cfd8c520f28f</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Soyedina Alexandria And S. Calcarea (Plecoptera: Nemouridae), New Stonefly Species From The Eastern Nearctic Region And Notes On The Life Cycle Of S. Calcarea..
Natural history specimen data linked to collectors and determiners held within, "Soyedina Alexandria And S. Calcarea (Plecoptera: Nemouridae), New Stonefly Species From The Eastern Nearctic Region And Notes On The Life Cycle Of S. Calcarea.". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/d009621e-c55f-446b-a518-2cf32929b517">https://bionomia.net/dataset/d009621e-c55f-446b-a518-2cf32929b517</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/d009621e-c55f-446b-a518-2cf32929b517">https://gbif.org/dataset/d009621e-c55f-446b-a518-2cf32929b517</a>. Formatted as a Frictionless Data package.
FIG. 54 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 54. — Surface view of the solid calcareous skeleton of Petrobiona massiliana, showing terminal spines of the sclerodermites (sc) and partially entrapped spicules (sp) (SEM). Scale bar: 50 µm (from Vacelet 1991).
FIG. 52 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 52. — Diagram of dissociated spicules of Tulearinia stylifera Vacelet, 1977 (light micrograph); A, superficial diactines; B, microdiactines; C, perioscular triactines; D, triactines; E, tetractines from the basal network; F, tetractine from canals. Scale bars: A, D, E, 50 µm; B, C, 15 µm; F, 20 µm (from Vacelet 1977).
FIG. 53 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 53. — Diagram of the organization of Petrobiona massiliana Vacelet & Lévi, 1958. Abbreviations: cx, cortical skeleton; ch, choanosome; ct, tracts of storage cells; d, solid calcareous skeleton; e, parasitic excavating sponge (from Vacelet 1964).
FIG. 49 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 49. — Transverse section of Plectroninia hindei Kirkpatrick, 1900 (light micrograph). Abbreviations: p, papilla; o, osculum; c, choanosome; cs, cortical skeleton; lt, large fused tetractines of the choanoskeleton; st, small fused tetractines of the choanoskeleton. Scale bar: 330 µm (from Pouliquen & Vacelet 1970).
FIG. 50 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 50. — View of the choanoskeleton of Plectroninia sp., showing two layers of tetractines fused by their basal actines (SEM). Scale bar: 50 µm (from Vacelet 1991).
FIG. 46 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 46. — Trichogypsia villosa (Carter, 1871); A, a diagram of a transverse section of the body wall, showing a pit-like cavity and a canal parallel to the external surface that bears conules containing very densely arranged parallel diactines; B, diactines of the cortical conules; C, diactines of the internal reticular skeleton; D, diactines that line the pit-like cavity.
FIG. 45 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 45.— Diagram of pugioles and microdiactines;A, Baeria gladiator; B, Lamontia zona; C, Baeria nivea; D, Baeria ochotensis.
FIG. 43 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 43. — Diagram of the formation of choanocyte chambers of diamorphies during the process of reconstitution from dissociat- ed cells; drawing from original micrographs by Peixinho (1980); A, pre-sycon stage of Grantia compressa; B, pre-leucon stage in Baeria nivea. Scale bar: A, 26 µm; B, 45 µm.
FIG. 44 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 44. — Pugioles (p) in an exhalant canal (ex) of Baeria nivea (Johnston, 1842). Scale bar: 90 µm.
FIG. 40 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 40. — Skeletal arrangement in a longitudinal section of Lelapia australis Gray, 1867. Abbreviations: a, atrium; dc, dermal cortex; dt, dermal tuft of triactines and slender diactines; fi, spicular fibres formed of tuning-fork-shaped triactines; gc, atrial cortex. Scale bar: 350 µm (from Dendy 1894).
FIG. 41 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 41. — Transverse sections through the wall of Baeria johnstoni (Carter, 1871) (light micrograph). Abbreviations: ex, large exhalant canals; ch, choanosome; cx, cortex. Scale bar: 230 µm.
FIG. 37 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 37. — Diagram of a transverse section through the wall of Grantiopsis. Abbreviations: a, atrium; as, atrial skeleton; ss, subatrial spicules; ct, choanosomal spicule tracts composed of nail-like triactines; cx, cortex.
FIG. 47 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 47. — Diagram of the organization of Lepidoleucon inflatum Vacelet, 1967; A, osculum; B, inhalant area. Scale bar: 75 µm (from Vacelet 1967a).
FIG. 36 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 36. — Diagram of the subatrial skeleton of the Staurorrhaphidae. Note the absence of the atrial skeleton, and the presence of the apical actines of the subatrial tetractines that point inwards into the atrial cavity. Abbreviations: a, atrium; ss, subatrial spicules.
FIG. 34 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 34. — Diagram of a transverse section through the wall of Leucilla. Abbreviations: a, atrium; as, atrial skeleton; ss, subatrial spicule; st, subcortical tetractines; cx, cortex.
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