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221 results for “Acoela”
FIGURE 4 in Convolutidae (Acoela) from the Andaman Sea
FIGURE 4. Convoluta niphoni sp. nov.; photomicrographs of living specimens. A. Dorsal view of whole, strongly squeezed specimen. Double arrowhead points to male copulatory organ, arrowhead to statocyst, arrow to eyespot. B. Dorsal view of anterior end. Arrow points to ocellus. C. Dorsal view of male copulatory organ. Arrow points to eyespot, arrowhead to statocyst, double-arrowhead to male copulatory organ.
FIGURE 3 in Convolutidae (Acoela) from the Andaman Sea
FIGURE 3. Amphiscolops potocani sp. nov.; photomicrographs of sagittal histological sections stained with hematoxylin. A. Section through length of body. B. Section through opening of frontal organ. C. Section through ovary. Note zoochlorellae within the epidermis, appearing as small dots with dark core. D. Section through male copulatory organ. Note outer longitudinal and inner circular muscles on ventral side of penis. Black arrows point to the distal part of gland cells, white arrowheads to nuclei at the distal part of the penis, black arrowhead to dark gland cells posterior to the statocyst, double-arrowhead to layer of fluid-filled vacuoles below the terminal web.
FIGURE 1 in Convolutidae (Acoela) from the Andaman Sea
FIGURE 1. Amphiscolops sp.; photomicrographs of living specimen. A. Dorsal view of whole specimen. B. Dorsal view of anterior end. C. Star-shaped pattern of concrements in epidermis. Arrows point to the two ocelli, arrowheads to clusters of black granules, double-arrowhead to a bundle of rhabdoids; asterisk marks the aggregation of concrements dorsal to the digestive syncytium.
FIGURE 7. Heterochaerus australis Haswell, 1905 in Erratum: Convolutidae (Acoela) from Tanzania by Achatz & Hooge (2006)
FIGURE 7. Heterochaerus australis Haswell, 1905; reconstruction to show arrangement of male and female copulatory organs.
FIGURE 11 in Erratum: Convolutidae (Acoela) from Tanzania by Achatz & Hooge (2006)
FIGURE 11. Picola renei Achatz & Hooge, 2006; reconstructions to show arrangement of organs. A. Dorsal reconstruction of whole specimen. B. Sagittal reconstruction of whole specimen.
FIGURE 5 in Diversity in the family Isodiametridae (Acoela): New species bring back old problems
FIGURE 5. Baltalimania microcurvum sp. nov. A. micropictograph of the whole body. B. drawing of the whole body C. micropictograph of the anterior focusing on the frontal glands D. micropictograph of the male copulatory organ E. micropictograph of the posterior focusing on the reproductive structures; am antrum masculinum, b bursa, dp digestive parenchyma, eg egg, f frontal organ, fp, female gonopore, l lipid globule, m mouth, mco male copulatory organ, mp male gonopore, p penis, r rhabdoid glands, st statocyst, sv seminal vesicle, t testes.
FIGURE 4 in Diversity in the family Isodiametridae (Acoela): New species bring back old problems
FIGURE 4. Baltalimania salinsula sp. nov. A. micropictograph of the posterior focusing on the reproductive structures B. drawing of the whole body C. micropictograph of the whole body D. micropictograph of the male copulatory organ; dp digestive parenchyma, eg egg, f frontal organ, l lipid globule, mco male copulatory organ, mp male gonopore, p penis, r rhabdoid glands, st statocyst, t testes, v vacuole.
FIGURE 1. Concatenated 18S in Diversity in the family Isodiametridae (Acoela): New species bring back old problems
FIGURE 1. Concatenated 18S and COI gene tree summary. Percent bootstrap values are given at each node. New species are highlighted in red.
FIGURE 3 in Diversity in the family Isodiametridae (Acoela): New species bring back old problems
FIGURE 3. Baltalimania asinariensis sp. nov. A. micropictograph of the whole body. B. drawing of the whole body C. micropictograph of the posterior focusing on the reproductive structures; b bursa, dp digestive parenchyma, eg egg, f frontal organ, fp, female gonopore, l lipid globule, mco male copulatory organ, mp male gonopore, p penis, r rhabdoid glands, st statocyst, t testes, v vacuole
FIGURE 2 in Diversity in the family Isodiametridae (Acoela): New species bring back old problems
FIGURE 2. Results of the mPTP analysis based on the COI gene tree of Isodiametridae. The bars are colored consistent with the results of the mPTP analysis, where the transition from blue to red represents a speciation event.
FIGURE 11 in Diversity in the family Isodiametridae (Acoela): New species bring back old problems
FIGURE 11. Pseudoposthia hanssoni sp. nov. A. micropictograph of the whole body. B. drawing of the whole body C. micropictograph at the midbody focusing on the reproductive structures D. drawing at midbody focused on reproductive structures; dp digestive parenchyma, eg egg, f frontal organ, fsv false seminal vesicle, gp gonopore, p penis, r rhabdoid glands, sph muscular sphincter around gonopore, st statocyst, t testes, v vacuole.
FIGURE 10 in Diversity in the family Isodiametridae (Acoela): New species bring back old problems
FIGURE 10. Pseudoposthia lata sp. nov. A. micropictograph of the whole body. B. drawing of the whole body C. sagittal section of the midbody focused on reproductive structures, stained with haematoxylin-eosin. D. micropictograph at the midbody focusing on the reproductive structures; dp digestive parenchyma, eg egg, f frontal organ, fsv false seminal vesicle, gp gonopore, r rhabdoid glands, sph muscular sphincter surrounding gonopore, st statocyst, t testes, v vacuole
FIGURE 8 in Diversity in the family Isodiametridae (Acoela): New species bring back old problems
FIGURE 8. Praeaphanostoma diatomovorum sp. nov. A. micropictograph of the whole body. B. drawing of the whole body C. micropictograph of the bursa D. micropictograph of the posterior focusing on the reproductive structures; b bursa, dp digestive parenchyma, eg egg, f frontal organ, gp gonopore, m mouth, r rhabdoid glands, st statocyst, sv seminal vesicle, t testes
FIGURE 9 in Diversity in the family Isodiametridae (Acoela): New species bring back old problems
FIGURE 9. Praeaphanostoma neglectum sp. nov. A. micropictograph of the whole body. B. drawing of the whole body C. micropictograph of the posterior focusing on the reproductive structures; b bursa, eg egg, f frontal organ, i intestine, mp male gonopore, p penis, r rhabdoid glands, st statocyst, sv seminal vesicle, t testes, vd vas deferens.
FIGURE 7 in Diversity in the family Isodiametridae (Acoela): New species bring back old problems
FIGURE 7. Baltalimania arcuatum sp. nov. A. sagittal section of the whole body stained with haematoxylin-eosin. B. transverse section stained with haematoxylin-eosin. C. micropictograph of the posterior focusing on the reproductive structures; b bursa, bn bursal nozzle,dp digestive parenchyma, eg egg, fsv false seminal vesicle, l lipid globule, mp male gonopore, p penis, r rhabdoid glands, sv seminal vesicle, v vacuole
FIGURE 6 in Diversity in the family Isodiametridae (Acoela): New species bring back old problems
FIGURE 6. Baltalimania arcuatum sp. nov. A. micropictograph of the whole body. B. drawing of the whole body C. micropictograph of the bursa D. micropictograph of the male copulatory organ E. micropictograph of the posterior focusing on the rhabdoid glands in longitudinal rows; am antrum masculinum, b bursa, bn bursal nozzle, dp digestive parenchyma, eg egg, f frontal organ, l lipid globule, m mouth, mp male gonopore, p penis, pv prostatic vesicle, r rhabdoid glands, st statocyst, sv seminal vesicle, t testes, v vacuole
FIGURE 4 in New species of Acoela (Acoelomorpha) from the Gulf of California
FIGURE 4. Isodiametra bajaensis sp. nov.; reconstructions to show arrangement of organs. A. Dorsal reconstruction of whole organism. B. Sagittal reconstruction of whole organism. bn, bursal nozzle; cs, digestive central syncytium; e, egg; fg, frontal gland; gp, gonopore; gr, granules; gs, glandular secretions; m, mouth; mg, mucoid gland; p, penis; sb, seminal bursa; sph, vaginal sphincter; st, statocyst; sv, seminal vesicle; t, testes.
FIGURE 7 in New species of Acoela (Acoelomorpha) from the Gulf of California
FIGURE 7. Praeaphanostoma gusana sp. nov.; reconstructions to show arrangement of organs. A. Dorsal reconstruction of whole organism. B. Sagittal reconstruction of whole organism. cs, digestive central syncytium; e, egg; fg, frontal gland; gp, gonopore; gr, granules; m, mouth; p, penis; rh, rhabdoid gland; sb, seminal bursa; st, statocyst; sv, seminal vesicle; t, testes; v, vagina.
FIGURE 1 in New species of Acoela (Acoelomorpha) from the Gulf of California
FIGURE 1. Haplogonaria amarilla sp. nov.; reconstructions to show arrangement of organs. A. Dorsal reconstruction of elongated living specimen. B. Sagittal reconstruction of embedded holotype. cs, digestive central syncytium; e, egg; fg, frontal gland; gp, gonopore; m, mouth; rh, rhabdoid gland; sb, seminal bursa; st, statocyst; sv, seminal vesicle; t, testes; v, vagina.
FIGURE 3 in Waminoa brickneri n. sp. (Acoela: Acoelomorpha) associated with corals in the Red Sea
FIGURE 3: Light micrographs of sections of Waminoa brickneri sp. nov. showing position of reproductive organs. A. Seminal bursa and male copulatory organ in midsagittal section. B. Tangential section of seminal bursa showing one bursal nozzle projecting caudally. C. Male copulatory organ; arrows point to serous glands that flank male gonopore. bn, bursa nozzle; fgp, female gonopore; mg, mucus glands; mgp, male gonopore; rh, rhabdoid glands; pg, penis glands; sb, seminal bursa; sv, seminal vesicle; zx, zooxanthellae.
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International Brain Laboratory public data
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OpenNeuro
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