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23 results for “Diplomma”
Figure 24 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 24. Diplomma serpentina (Stimpson, 1855). A, transverse section through cerebral ring, showing cephalic vessels protruded into rhynchocoel (indicated by arrowheads); B, higher magnification of (A); C, putative position of compressed and flattened cephalic vessels (indicated by arrowheads); D higher magnification of (C). A, B, paraneotype (ZIHU-1356); C, D, paraneotype (USNM-1136675). Abbreviations: BR, brain; OE, oesophagus; PR, proboscis; RC, rhynchocoel. Scale bars: A = 50 Mm; B = 20 Mm; C = 30 Mm; D = 10 Mm.
Figure 10 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 10. Diplomma bothwellae comb. nov. (formerly Poseidonemertes bothwellae Gibson, 1982). Holotype (AM W.5890). Transverse section through the pylorus (PY) and intestinal caecum (IC); arrows indicate dorsoventral muscle fibres running lateral to the lateral nerve cord (LN). Scale bar = 100 Mm.
Figure 8 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 8. Diplomma albimarginata comb. nov. (formerly Paramphiporus albimarginatus Kirsteuer, 1965). Syntype (AMNH 277). A, transverse section showing anterior portion of unpaired intestinal caecum (arrowed) situated on one side of the pylorus (PY); B, ten sections posterior to A, showing the intestinal caecum (arrowed) lateral and ventral to the PY; C, seven sections posterior to B, showing the PY opening to the dorsal wall of the intestine. Scale bar = 50 Mm.
Figure 5 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 5. Diplomma albimarginata comb. nov. (formerly Paramphiporus albimarginatus Kirsteuer, 1965). Syntype (AMNH 277). Transverse section showing the proboscis nerves (arrowed). Scale bar = 50 Mm.
Figure 2 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 2. Bayesian tree of a selected number of morphologically known distromatonemerteans using the general timereversible model with invariant sites and gamma-distributed rates based on 28S rRNA gene sequences (718 bp after alignment). Numbers above branches are bootstrap percentages from the maximum likelihood analysis (values> 50% are shown); numbers below are posterior probabilities (values> 95% are shown). Nipponnemertes bimaculata was used as the outgroup.
Figure 13. Poseidonemertes gondwanae Kirsteuer, 1965 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 13. Poseidonemertes gondwanae Kirsteuer, 1965. Holotype (AMNH 278). A, diagonal muscle layer between body-wall outer circular and inner longitudinal muscle layers. B, horizontal nervous thread from lateral nerve cord to the epidermis (indicated by white arrows); black arrows indicate dorsoventral muscle fibres running inside lateral nerve cord. Abbreviations: CM, body-wall circular muscle layer; DE, dermis; DM, diagonal muscle layer; IN, intestine; LN, lateral nerve cord; RC, rhynchocoel. Scale bars: A = 30 Mm; B = 50 Mm.
Figure 4. Bootstrap 50 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 4. Bootstrap 50% majority-rule consensus unrooted tree of a selected number of distromatonemerteans, based on a maximum likelihood analysis with the general time-reversible model with invariant sites and gamma-distributed rates using mitochondrial cytochrome c oxidase subunit I gene sequences (535 bp after alignment). Numbers above branches are bootstrap percentages from the maximum likelihood analysis (values> 70% are shown); numbers below are posterior probabilities (values> 95% are shown). In this paper we transfer Correanemertes polyophthalma to the genus Diplomma.
Figure 14 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 14. Diplomma polyophthalma (Gibson & Sundberg, 2001) comb. nov. (formerly Correanemertes polyophthalma Gibson & Sundberg, 2001). Proboscis nerves (arrowed) in the holotype, MTQ G20024 (A) and paratype, MTQ G20025 (B). Scale bars = 100 Mm.
Figure 19 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 19. Diplomma serpentina (Stimpson, 1855). A, transverse section through brain region, showing epidermis and divided longitudinal musculature; arrowhead indicates connective tissue layer that divides longitudinal musculature into two layers; B, horizontal section through brain region; arrowhead indicates fibres from outer longitudinal muscle layer; C, transverse section through proboscis insertion; white arrow indicates rhynchodaeal sphincter; black arrowhead indicates fibre from outer longitudinal muscle layer; D, tangential section of body wall, showing lattice-type diagonal muscles; E, transverse section through intestinal region, showing dorsoventral muscle (indicated by arrowhead) running between intestinal lateral diverticula; F, transverse section through anterior portion of proboscis, showing 12 proboscis nerves (indicated by arrows). A, E, F, neotype (ZIHU-1352); B, paraneotype (ZIHU-1354); C, paraneotype (ZIHU-1353); D, paraneotype (ZIHU-1356). Abbreviations: BG, basophilic cephalic gland; BR, brain; CR, cephalic retractor muscle; EP, epidermis; ID, intestinal lateral diverticulum; IL, inner portion of divided body-wall longitudinal muscle layer; IN, intestine; LN, lateral nerve cord; OL, outer portion of divided body-wall longitudinal muscle layer; PI, proboscis insertion; PR, proboscis; RD, rhynchodaeum. Scale bars: A, C, D, F = 50 Mm; B, E = 100 Mm.
Figure 3 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 3. Bayesian tree of a selected number of distromatonemerteans, using the general time-reversible model with invariant sites and gamma-distributed rates model based on 18S rRNA gene sequences (1248 bp after alignment), rooted with cratenemerteans as the outgroup. Numbers above branches are bootstrap percentages from the maximum likelihood analysis (values> 50% are shown); numbers below are posterior probabilities (values> 95% are shown). In this paper we transfer Correanemertes polyophthalma to the genus Diplomma.
Figure 7 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 7. Diplomma albimarginata comb. nov. (formerly Paramphiporus albimarginatus Kirsteuer, 1965). One of the two syntypes (AMNH 277). Transverse section to show the two anterior 'pouches' (AP) situated laterally to the pylorus (PY); note the exceedingly expanded rhynchocoel (RC), compared to the body diameter and the proboscis (PR). Scale bar = 100 Mm.
Figure 15 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 15. Diplomma polyophthalma (Gibson & Sundberg, 2001) comb. nov. (formerly Correanemertes polyophthalma Gibson & Sundberg, 2001). Holotype (MTQ G20024). Intestinal caecum below pylorus; arrow indicates dorsoventral muscle fibre running outside lateral nerve cord. Abbreviations: IC, intestinal caecum; LN, lateral nerve cord; PR, proboscis; PY, pylorus; RC, rhynchocoel. Scale bar = 100 Mm.
Figure 23 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 23. Diplomma serpentina (Stimpson, 1855). A, photomicrograph of stylet apparatus, taken from life; B, transverse section through junction between anterior and posterior stomach regions; C, transverse section through pyloric region; D, transverse section to show apical organ; E, transverse section through precerebral region, showing various components of cephalic glands; arrowheads indicate coarsely granular acidophilic glands; F, horizontal section through precerebral region, showing improvised duct (indicated by arrowhead). A, paraneotype (ZIHU- 1357); B, C, E, neotype (ZIHU-1352); D, paraneotype (ZIHU-1353); F, paraneotype (ZIHU-1354). Abbreviations: AO, apical organ; AS, anterior portion of stomach; BG, basophilic cephalic gland; CC, cerebral sensory organ canal; IC, intestinal caecum; LN, lateral nerve cord; PS, posterior portion of stomach; PY, pylorus; RC, rhynchocoel; RD, rhynchodaeum. Scale bars: A, C, E = 100 Mm; B, D = 50 Mm; F = 30 Mm.
Figure 22 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 22. Diplomma serpentina (Stimpson, 1855). A, transverse section showing ocelli (indicated by arrowheads); B, transverse section through cerebral organ; C, transverse section through excretory collecting tubule; arrowhead indicates efferent duct; D, transverse section through intestinal region, showing immature gonad; arrowhead indicates gonoduct. A–C, neotype (ZIHU-1352); D, paraneotype (ZIHU-1353). Abbreviations: CC, cerebral sensory organ canal; CO, cerebral sensory organ; EX, excretory collecting tubule; GO, gonad; LN, lateral nerve cord; IN, intestine; PA, parenchyma. Scale bars: A–D = 50 Mm.
Figure 12. Poseidonemertes gondwanae Kirsteuer, 1965 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 12. Poseidonemertes gondwanae Kirsteuer, 1965. Holotype (AMNH 278). A–F, serial transverse section to show that mid-dorsal vessel enters rhynchocoel. Abbreviations: DV, mid-dorsal vessel; LV, lateral blood vessel; RC, rhynchocoel; VP, vascular plug. Scale bar = 50 Mm.
Figure 21 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 21. Diplomma serpentina (Stimpson, 1855). A, transverse section through foregut region, showing dorsoventral muscles (indicated by arrowheads); B, transverse section through intestinal region, showing dorsoventral muscles running outside lateral nerve cord (indicated by black arrowhead) and inside ovary (indicated by white arrowheads); C, transverse section through pyloric region – dorsoventral muscles were not evident in this individual; D, transverse section through foregut region, showing dorsoventral muscles (indicated by arrowheads) running outside lateral nerve cord and lateral blood vessel; E, transverse section through foregut region, showing dorsoventral muscles (indicated by arrowhead) running outside excretory tubule. A, B, paraneotype (ZIHU-3166); C, paraneotype (ZIHU-1356); D, E, paraneotype (UPLB- NHM 0488). Abbreviations: DE, dermis; EX, excretory collecting tubule; IC, intestinal caecum; LN, lateral nerve cord; LV, lateral blood vessel; OV, ovum; PA, parenchyma; PY, pylorus; RC, rhynchocoel; ST, stomach. Scale bars: A, B = 50 Mm; C, E = 30 Mm; D = 100 Mm.
Figure 11 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 11. Diplomma bothwellae comb. nov. (formerly Poseidonemertes bothwellae Gibson, 1982). Holotype (AM W.5890). Magnification of Figure 10 to show the dorsoventral muscle fibres (arrowed). Abbreviations: EP, epithelium; LN, lateral nerve cord; LV, lateral blood vessel; RC, rhynchocoel. Scale bar = 20 Mm.
Figure 17 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 17. Diplomma serpentina (Stimpson, 1855). A, drawing based on neotype, showing general appearance of body in life; B, C, D, enlargements of cephalic region in dorsal (B), ventral (C), and lateral (D) aspects. Scale bar [refers to (A) only] = 3 mm.
Figure 9 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 9. Diplomma bothwellae comb. nov. (formerly Poseidonemertes bothwellae Gibson, 1982). Holotype (AM W.5890). Transverse section through the anterior proboscis; arrows indicate the proboscis nerves. Scale bar = 20 Mm.
Figure 16 in Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence
Figure 16. Diplomma serpentina (Stimpson, 1855). A, photograph of narcotized specimen taken in life; B, photograph of the same specimen as (A) before anaesthetization, showing natural shape of head; C, horizontal section through head, showing arrangement of outer portion of body-wall longitudinal musculature and its derivatives; D, horizontal section through head, showing arrangement of inner portion of body-wall longitudinal musculature contributing to proboscis insertion; E, sagittal section through head, showing cephalic retractor muscle fibre derived from inner portion of divided body-wall longitudinal muscle layer. A, B, E, UPLB-NHM 0489; C, D, ZIHU-1354. Abbreviations: AG, acidophilic cephalic gland; BG, basophilic cephalic gland; BR, brain; CO, cerebral organ; CR, cephalic retractor muscle; IL, inner portion of body-wall longitudinal musculature; OL, outer portion of body-wall longitudinal musculature; PI, proboscis insertion; PR, proboscis. Scale bars: A = 3 mm; C, D = 100 Mm; E = 50 Mm.
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