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12 results for “Acicula”
◂Fig. 5 Gametogenesis in male and female Veneriserva pygoclava. A–D Semi-thin histological sections of female Veneriserva pygoclava, stained with toluidine blue. A Cross-section of a female Veneriserva. B Close-up of large mature oocytes without discernible nurse cells. C Developing oocytes attached to mesenteries (mes), and oogonia proliferating from the ventral side of the dorsal blood vessel (bv). D Details of vitellogenic oocytes and nurse cells. Arrowheads indicate brownstained yolk platelets and yolk bodies. E Live sperm cells captured in a light micrograph. F–G Cross-sections of male Veneriserva. Note the absence of a gut in the cross-sections. Abbreviations—ac acicula, acr acrosome, bv blood vessel, coe coelomic cavity, mes mesentery, nc nurse cell, nn nurse cell nucleus, nu sperm cell nucleus, Oo oocyte, on oocyte nucleus, sp spermatogonia, vnc ventral nerve cord in Hardly Venus's servant-morphological adaptations of Veneriserva to an endoparasitic lifestyle and its phylogenetic position within Dorvilleidae (Annelida)
◂Fig. 5 Gametogenesis in male and female Veneriserva pygoclava. A–D Semi-thin histological sections of female Veneriserva pygoclava, stained with toluidine blue. A Cross-section of a female Veneriserva. B Close-up of large mature oocytes without discernible nurse cells. C Developing oocytes attached to mesenteries (mes), and oogonia proliferating from the ventral side of the dorsal blood vessel (bv). D Details of vitellogenic oocytes and nurse cells. Arrowheads indicate brownstained yolk platelets and yolk bodies. E Live sperm cells captured in a light micrograph. F–G Cross-sections of male Veneriserva. Note the absence of a gut in the cross-sections. Abbreviations—ac acicula, acr acrosome, bv blood vessel, coe coelomic cavity, mes mesentery, nc nurse cell, nn nurse cell nucleus, nu sperm cell nucleus, Oo oocyte, on oocyte nucleus, sp spermatogonia, vnc ventral nerve cord
FIGURES 44–47 Lobesia acicula, n in First report on the Olethreutini (Lepidoptera: Tortricidae: Olethreutinae) of Lao PDR with descriptions of two new species
FIGURES 44–47 Lobesia acicula, n.sp. 44. male genitalia 45. gnathos 46. phallus 47. abdominal sternum II.
FIGURE 7 in The genus Acicula W. Hartmann, 1821 in the Caucasus (Gastropoda: Caenogastropoda: Aciculidae)
FIGURE 7. Distribution of Acicula species in the Caucasus Mts. The symbols marked with numbers (1: Surami range, 2: Manglisi, 3: Martkopi, 4: North Ossetia) do not represent georeferenced localities for Acicula moussoni O. Boettger, 1879 and Acicula parcelineata (Clessin, 1911).
FIGURE 1. A in The genus Acicula W. Hartmann, 1821 in the Caucasus (Gastropoda: Caenogastropoda: Aciculidae)
FIGURE 1. A: An Acicula shell positioned with the axis of the shell on the y-axis and the aperture in the same plane as the objective, showing the location of the 18 landmarks used. B: counting of grooves on the last whorl. Images not to scale. Photos: B. Páll-Gergely.
FIGURE 9 in The genus Acicula W. Hartmann, 1821 in the Caucasus (Gastropoda: Caenogastropoda: Aciculidae)
FIGURE 9. Acicula telum Páll-Gergely, n. sp. A: Greater Caucasus Mts, 13 km north-northeast from Sochi; (RMNH; REM- Foto: J.H.W. Krom); B: holotype (LN 10681, specimen1, SMF 366182); C: LN 10564, specimen1; D: LN 10697, specimen1; E: ex. LN 10357, specimen1; F: LN 10523, specimen1. Photos: B. Páll-Gergely except for A (images taken from Boettger et al. 1989).
FIGURE 3 in The genus Acicula W. Hartmann, 1821 in the Caucasus (Gastropoda: Caenogastropoda: Aciculidae)
FIGURE 3. (A) Principal Components Analysis and (B) Canonical Variates Analysis for the studied Acicula species, and the ordinations of specimens, with 90% confidence ellipses, based on landmark data.
FIGURE 6. Acicula moussoni O. Boettger, 1879. A in The genus Acicula W. Hartmann, 1821 in the Caucasus (Gastropoda: Caenogastropoda: Aciculidae)
FIGURE 6. Acicula moussoni O. Boettger, 1879. A: Iori1, specimen1; B: LP4S2, specimen1; C: LP7S3, specimen1; D: LN 7767, specimen1; E: LN 10651, specimen1; F: LN 10680, specimen1. All photos: B. Páll-Gergely.
FIGURE 2 in The genus Acicula W. Hartmann, 1821 in the Caucasus (Gastropoda: Caenogastropoda: Aciculidae)
FIGURE 2. Means ± 95% Confidence Intervals of (A) Log centroid size, and (B) of the number of grooves, for the studied Acicula species, based on landmark data.
FIGURE 5 in The genus Acicula W. Hartmann, 1821 in the Caucasus (Gastropoda: Caenogastropoda: Aciculidae)
FIGURE 5. Shells of Acicula species. A: Acicula limbata Reuss, 1861 (NHMW 2013/0572/0004). B–F: Acicula moussoni O. Boettger, 1879. B: SMF 23858a (labelled as "Acicula (Acicula) zilchi n. sp."); C: SMF 23858b (labelled as "Acicula (Acicula) zilchi n. sp."); D: LP2S3, specimen1; E: "Lectotype" of Acicula moussoni O. Boettger, 1879 (invalidly designated, SMF 4202a); F: F1940, specimen1 (ISU TM-T004-N, neotype, hereby designated). Photos: B. Páll-Gergely (A, C, D, F) and F. Walther (C, E).
FIGURE 10 in The genus Acicula W. Hartmann, 1821 in the Caucasus (Gastropoda: Caenogastropoda: Aciculidae)
FIGURE 10. Synoptic view of Caucasian Acicula. Upper left shell: Acicula limbata Reuss, 1861; other shells in the upper two rows: Acicula moussoni O. Boettger, 1879, third row: Acicula telum Páll-Gergely, n. sp., fourth row: Acicula parcelineata (Clessin, 1911).
FIGURE 4 in The genus Acicula W. Hartmann, 1821 in the Caucasus (Gastropoda: Caenogastropoda: Aciculidae)
FIGURE 4. Shape changes along the CV1. The starting shape (i.e., A. moussoni in the leftmost graph) is shown as light blue outlines with hollow dots at the positions of the landmarks, and the target shape (i.e., A. parcelineata in the leftmost graph) is shown as a dark blue outline with solid dots at the positions of the landmarks. Scale factor = 5 (the scale factor is the magnification or reduction applied to the shape as a Procrustes distance, that is displayed).
FIGURE 8 in The genus Acicula W. Hartmann, 1821 in the Caucasus (Gastropoda: Caenogastropoda: Aciculidae)
FIGURE 8. Acicula parcelineata (Clessin, 1911). A: 2018/19, specimen1; B: 2018/19, specimen2; C: 2018/17, specimen 1; D: ex LN 10681, specimen2; E: 2021/28x; F and G: shells collected near Tatariv village, Ukraine, photos from Skvortsova & Balashov (2019); H: ex LN 10680, specimen1; I: ex LN 10680, specimen2. All photos: B. Páll-Gergely.
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