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22 results for “Holostei”
Fig. 1 in Lepisosteiform Fish (Holostei) Ganoid Scales From The Middle Jurassic Deposits Of Ukraine
Fig. 1. Location of the Pekari fossil site on the map of Ukraine, the portrait of Professor O. S. Rogovich with the original (above) and additional labels (below) of the described material.
Fig. 2 in Lepisosteiform Fish (Holostei) Ganoid Scales From The Middle Jurassic Deposits Of Ukraine
Fig. 2. Ganoid scales of Lepisosteiformes gen. et sp. indet. from Pekari: A1-A2 — No. 391/109; B1-B2 — No. 391/107a; C1-C2 — No. 391/107b; D1-D2 — No. 391/110; E1-E2 — No. 391/108; F1-F2 — No. 391/107d; G1- G2 — No. 391/107c. Outer view in A1, B1, C1, D1, E1, F1, G1, inner view in A2, B2, C2, D2, E2, F2, G2. Abbreviations: bp, basal plate; dap, dorsal anterior process; dp, dorsal peg; gl, ganoin layer; gr, ganoin ridges.
Fig. 2 in A young parasite in an old fish host: A new genus for proteocephalid tapeworms (Cestoda) of bowfin (Amia calva) (Holostei: Amiiformes), and a revised list of its cestodes
Fig. 2. Laruella perplexa (La Rue, 1911) n. comb. from Amia calva. SEM micrographs. A – frontal view of scolex. B, D – subapical view of scolex; note tear-shaped inner rim of suckers. C – apical view of scolex; note apical pit. E – capiliform filitriches on scolex (apical region anterior to suckers – indicated by letter E in Fig. 2B).
Fig. 4 in A young parasite in an old fish host: A new genus for proteocephalid tapeworms (Cestoda) of bowfin (Amia calva) (Holostei: Amiiformes), and a revised list of its cestodes
Fig. 4. Laruella perplexa (La Rue, 1911) n. comb. from Amia calva, Illinois and Mississippi (A–D) and Proteocephalus ambloplitis (Leidy, 1887) from Micropterus dolomieu (E, F). A – terminal genitalia with uterine diverticula near anterior part of proglottids (MHNG-PLAT-0063348), dorsal view; vitelline follicles are not illustrated. B, C – terminal genitalia, frontal section and ventral view of paratype (USNM 1348679). D – posterolateral end of proglottid (MHNG-PLAT-0063348); note band of posterior (median) vitelline follicles bent inwards. E – proximal part of vaginal canal, dorsal view; note numerous loops. F – cirrus-sac, dorsal view; note large, thick-waled vaginal sphincter and strongly convoluted internal sperm duct. Abbreviations: CI - cirrus; CS - cirrus sac; DOC – dorsal osmoregulatory canal; EG – egg; MG – Mehlis' gland; MVF – median vitelline follicles; OV – ovary; SR – seminal receptacle; TE – testes; UD – uterine diverticula; VA – vagina; VD – vas deferens; VF – vitelline follicles; VOC – ventral osmoregulatory canal; VS – vaginal sphincter.
Fig. 1 in A young parasite in an old fish host: A new genus for proteocephalid tapeworms (Cestoda) of bowfin (Amia calva) (Holostei: Amiiformes), and a revised list of its cestodes
Fig. 1. Laruella perplexa (La Rue, 1911) n. comb. from Amia calva (A, B, C, E, G, H) and Proteocephalus ambloplitis (Leidy, 1887) from Micropterus dolomieu (D, F). A, D – anterior part of body with first proglottids. B, C, E, F – scolex, frontal view; B – holotype (USNM 1347286); note narrow sphincters around sucker opening in C, E). G – cross section through scolex; note sphincters on margin of sucker openings; paratype (USNM 1348679). Abbreviations: AO - apical organ; EG – egg; ILM – inner longitudinal musculature; OC – osmoregulatory canals; SS – sucker sphincter; SU – sucker; TE - testes; TG - tegument; UT – uterus; VF – vitelline follicles.
Fig. 3 in A young parasite in an old fish host: A new genus for proteocephalid tapeworms (Cestoda) of bowfin (Amia calva) (Holostei: Amiiformes), and a revised list of its cestodes
Fig. 3. Laruella perplexa (La Rue, 1911) n. comb. from Amia calva, Mississippi, USA (MHNG-PLAT-0063348). A – mature proglottid, ventral view. B – pregravid proglottid, ventral view. Abbreviations: CS - cirrus sac; DOC – dorsal osmoregulatory canal; EG – egg; GP – genital pore; MG – Mehlis' gland; MVF – median vitelline follicles; OC – oocapt; OV – ovary; SR – seminal receptacle; SU – sucker; TE – testes; UD – uterine diverticula; VA – vagina; VD – vas deferens; VF – vitelline follicles; VOC – ventral osmoregulatory canal; VS – vaginal sphincter.
FIGURE 3 in A new Ginglymodi (Actinopterygii, Holostei) from the Late Jurassic-Early Cretaceous of Thailand, with comments on the early diversification of Lepisosteiformes in Southeast Asia
FIGURE 3. Khoratichthys gibbus, gen. et sp. nov., skull of the holotype, NRRU 6011-01. A and B, silicone peels of the left and right sides. C and D, interpretative line drawings of A and B. Abbreviations: br, branchiostegal rays; cl, cleithrum; d, dentary; dsp, dermosphenotic; fr, frontal; io, infraorbital bones; iop, interopercle; mand, mandible; mcn, mandibular sensory canal; mx, maxilla; op, opercle; pa, parietal; pal, palatine; pcl, postcleithrum; pmx, premaxilla; pop, preopercle; pt, pterygoid; ptt, posttemporal; scl, supracleithrum; socn, supraorbital sensory canal; sop, subopercle; su, supraorbital bones; suo, suborbital. Scale bars equal 2 cm.
FIGURE 4 in A new Ginglymodi (Actinopterygii, Holostei) from the Late Jurassic-Early Cretaceous of Thailand, with comments on the early diversification of Lepisosteiformes in Southeast Asia
FIGURE 4. Khoratichthys gibbus, gen. et sp. nov., holotype NRRU 6011-01. Interpretative line drawings of the dorsal fin in A, left and B, right lateral views. C, interpretative line drawing of the anal fin. Interpretative line drawings of the caudal fin in D, left and E, right lateral views. Abbreviations: b.fu, basal fulcra; fr.fu, fringing fulcra; p.b.fu, paired basal fulcra; sct, scute; u.b.fu, unpaired basal fulcra. Scale bars equal 2 cm.
FIGURE 2 in A new Ginglymodi (Actinopterygii, Holostei) from the Late Jurassic-Early Cretaceous of Thailand, with comments on the early diversification of Lepisosteiformes in Southeast Asia
FIGURE 2. Khoratichthys gibbus, gen. et sp. nov. Photographs of peels of the holotype, NRRU 6011-01, in A, left and B, right lateral views. Scale bars equal 2 cm.
FIGURE 1. A in A new Ginglymodi (Actinopterygii, Holostei) from the Late Jurassic-Early Cretaceous of Thailand, with comments on the early diversification of Lepisosteiformes in Southeast Asia
FIGURE 1. A, map of Thailand showing the location of the Phu Kradung Formation (in black). B, close-up of northeastern Thailand with location of Ban Non Sao-Ae. C, photograph of the negative imprint of the holotype, NRRU 6011-01, of Khoratichthys gibbus, gen. et sp. nov. Scale bar equals 2 cm (C).
FIGURE 7 in A new Ginglymodi (Actinopterygii, Holostei) from the Late Jurassic-Early Cretaceous of Thailand, with comments on the early diversification of Lepisosteiformes in Southeast Asia
FIGURE 7. Calibrated phylogeny of ginglymodian fishes. Bremer support greater than 1 is indicated in brackets before the slash, and bootstrap values greater than 50 after the slash. Taxa in bold are those found in the Phu Kradung Formation, Thailand.
FIGURE 5 in A new Ginglymodi (Actinopterygii, Holostei) from the Late Jurassic-Early Cretaceous of Thailand, with comments on the early diversification of Lepisosteiformes in Southeast Asia
FIGURE 5. Khoratichthys gibbus, gen. et sp. nov., holotype NRRU 6011-01. A, photographs of the dorsal part of the trunk in silicone peel. B, interpretative line drawing of A. Abbreviations: a.d.pr, anterior dorsal process of scale; cl, cleithrum; df, dorsal fin; d.p, dorsal peg; ptt, posttemporal; scl, supracleithrum; sn, supraneural. Scale bars equal 2 cm.
Figure 9 in A new basal ginglymodian fish (Holostei: Neopterygii) from the Middle Triassic (Anisian) Luoping Biota, Yunnan, China
Figure 9. Strict consensus of four most-parsimonious trees, illustrating the phylogenetic position of Diandongichthys ocellatus gen. et sp. nov. within Neopterygii. Numerical values above the nodes denote Bremer decay indices. For character descriptions and codings for the sampled taxa, see the Supporting Information, Data S1.
Figure 5 in A new basal ginglymodian fish (Holostei: Neopterygii) from the Middle Triassic (Anisian) Luoping Biota, Yunnan, China
Figure 5. Diandongichthys ocellatus gen. et sp. nov., IVPP V24372. A, entire specimen. Photograph (B) and line-drawing (C) of skull and pectoral girdle.
Figure 1 in A new basal ginglymodian fish (Holostei: Neopterygii) from the Middle Triassic (Anisian) Luoping Biota, Yunnan, China
Figure 1. Diandongichthys ocellatus gen. et sp. nov., holotype (IVPP V25610). A, entire specimen. Photograph (B) and line-drawing (C) of skull and pectoral girdle.
Figure 2 in A new basal ginglymodian fish (Holostei: Neopterygii) from the Middle Triassic (Anisian) Luoping Biota, Yunnan, China
Figure 2. Diandongichthys ocellatus gen. et sp. nov., IVPP V24370. A, entire specimen. Photograph (B) and line-drawing (C) of skull and pectoral girdle.
Figure 4 in A new basal ginglymodian fish (Holostei: Neopterygii) from the Middle Triassic (Anisian) Luoping Biota, Yunnan, China
Figure 4. Diandongichthys ocellatus gen. et sp. nov., IVPP V24371. A, entire specimen. Photograph (B) and line-drawing (C) of skull and pectoral girdle.
Figure 7 in A new basal ginglymodian fish (Holostei: Neopterygii) from the Middle Triassic (Anisian) Luoping Biota, Yunnan, China
Figure 7. Cranial bones, fins and scales of Diandongichthys ocellatus gen. et sp. nov. A, less pectoral fin, IVPP V25610. B, median gular, V24229. C, dorsal and anal fins, V24372. D, dorsal, anal and pelvic fins and basipterygia, V24371. Photograph (E) and line-drawing (F) of caudal fin, V25610.
Figure 3 in A new basal ginglymodian fish (Holostei: Neopterygii) from the Middle Triassic (Anisian) Luoping Biota, Yunnan, China
Figure 3. Diandongichthys ocellatus gen. et sp. nov., IVPP V20616. A, entire specimen. Photograph (B) and line-drawing (C) of skull and pectoral girdle.
FIGURE 6 in A new Ginglymodi (Actinopterygii, Holostei) from the Late Jurassic-Early Cretaceous of Thailand, with comments on the early diversification of Lepisosteiformes in Southeast Asia
FIGURE 6. Reconstruction of Khoratichthys, gibbus, gen. et sp. nov. Scale bar equals 2 cm.
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