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33 results for “Epitoniidae”
FIGURE 5 in Undercover speciation of wentletraps (Caenogastropoda: Epitoniidae) in the Southwestern Atlantic
FIGURE 5. Epitonium striatellum (Nyst, 1871), shell. A. Original illustration of Scalaria tenuistriata (d'Orbigny, 1842: pl. 54, fig. 6). B, D–I. Specimens from La Mar Grande (MACN-In 40377). C. Specimen from 40°54'00.0''S 65°06'43.1''W (MACN-In 40378). H. Detail of fourth and fifth whorls. I. Detail of teleoconch sculpture at last whorl. Scale bars: B, E, F = 10 mm; C = 1 mm; D = 500 µm; E = 2 mm; G = 5 mm; H = 500 µm; I = 200 µm.
FIGURE 4 in Undercover speciation of wentletraps (Caenogastropoda: Epitoniidae) in the Southwestern Atlantic
FIGURE 4. Epitonium fabrizioi, radula and jaw. A, D, E. Specimens from Punta Cuevas (A same specimen as Fig. 3C) (MACN-In 40375). B, C. Specimen from Las Grutas (same specimen as Fig. 3E, F: MACN-In 40367). A–C. Radula. A. Detail of half field of radula. B. Intermediate teeth. C. Detail of cusps. D, E. Jaw. D. Anterior margin. E. Detail of marginal denticles. Scale bars: A = 100 µm; B = 20 µm; C, D = 10 µm; E = 2 µm.
FIGURE 1 in Undercover speciation of wentletraps (Caenogastropoda: Epitoniidae) in the Southwestern Atlantic
FIGURE 1. Epitonium georgettinum (Kiener, 1838), shell and operculum. A. Syntype of Scalaria georgettina (NHMG Inve 75290). B. Syntype of Scalaria elegans (NHMUK 1854.12.4.358). C, H. Specimens from La Mar Grande (MACN-In 40360). D–E. Specimens from Bahía San Blas (MACN-In 20265). F, G, K. Specimen from Puerto Quequén (MACN-In 18676). G. Detail of protoconch sculpture, K. Detail of teleoconch sculpture at last whorl. I, J, L. Specimen from Playas Doradas (MACN- In 40365). L. Detail of operculum sculpture. Scale bars: A–C, H, I = 10 mm; D, K = 500 µm; E = 200 µm; F = 2 mm; G = 50 µm; J = 1 mm; L = 20 µm.
FIGURE 6. A–L in Undercover speciation of wentletraps (Caenogastropoda: Epitoniidae) in the Southwestern Atlantic
FIGURE 6. A–L. Epitonium evanidstriatum new species, shell and operculum. A, B. Holotype (MACN-In 40380). C, D, F, G, J. Specimens from 40°56'27.2'S 65°07'58.2''W (MACN-In 40387). E, K. Paratype (MACN-In 40381). H, I, L. Paratype (MACN-In 40382). I. Detail of protoconch sculpture. J, K. Detail of teleoconch sculpture between second and third whorls (J) and last two whorls (K); L. Detail of operculum sculpture. M. Lectotype of Scala apiculata (USNM 94890). Scale bars: A–C, E, M = 2 mm; D, G, J = 200 µm; F, H, K = 1 mm; I = 5 µm; L = 20 µm.
FIGURE 11 in Undercover speciation of wentletraps (Caenogastropoda: Epitoniidae) in the Southwestern Atlantic
FIGURE 11. "Cirsotrema" ctenodentatum new species, shell and operculum. A, G, I. Holotype (MACN-In 40401). G. Detail of teleoconch sculpture at last whorl. B, H. Specimens from off Tierra del Fuego (MACN-In 24975). C, E. Specimen from off Tierra del Fuego (MACN-In 22614). D, F. Paratype (MACN-In 40402). J. Detail of operculum sculpture, specimen from off Tierra del Fuego (MACN-In 40403). Scale bars: A = 2 mm; B, C, E, H = 5 mm; D = 200 µm; F, G, I = 1 mm; J = 50 µm.
FIGURE 3 in Undercover speciation of wentletraps (Caenogastropoda: Epitoniidae) in the Southwestern Atlantic
FIGURE 3. Epitonium fabrizioi Pastorino & Penchaszadeh, 1998, shell and operculum. A. Holotype (MLP-Ma 5402). B. Specimen from Puerto Madryn (MACN-In 9171-22). C, D, G, H, K. Specimens from Punta Cuevas (MACN-In 40375). K. Detail of operculum sculpture. E, F. Specimen from Las Grutas (MACN-In 40367). I, J. Specimen from Puerto Lobos (MACN- In 40374). J. Detail of teleoconch sculpture at last whorl. Scale bars: A–C, E, F, I = 5 mm; D, H = 2 mm; G, J = 500 µm; K = 20 µm.
FIGURE 2 in Undercover speciation of wentletraps (Caenogastropoda: Epitoniidae) in the Southwestern Atlantic
FIGURE 2. Epitonium georgettinum, radula and jaw. A, B, E. Specimen from off Mar del Plata, with "blade-like" ribs (MACN-In 12211). C, D, F. Specimen from Playas Doradas with "cord-like" ribs (same specimen as Fig. 1I: MACN-In 40365). A–D. Radula. A. Half radular field. B, C. Intermediate teeth. D. Detail of teeth of central field. E, F. Jaw. E. Anterior margin. F. Detail of marginal denticles. Scale bars: A = 100 µm; B, C, E = 20 µm; D = 50 µm; F = 10 µm.
FIGURE 2 in Two new records of Epitoniidae from Easter Island, Chile
FIGURE 2. Opalia (Opalia) sumatrensis (Thiele, 1925), length: 2.98 mm. A) Full apertural view. B) Close up of postnuclear whorls. C) Close up of suture, costae and sculpture. Scale bars: B & C = 500 µm. Photographs by B. Raines.
FIGURE 3 in Two new records of Epitoniidae from Easter Island, Chile
FIGURE 3. Opalia (Opalia) sumatrensis Thiele, 1925, syntype: ZMB 109.992, length: 4.0 mm. Photograph by F. Köhler.
FIGURE 1 in Two new records of Epitoniidae from Easter Island, Chile
FIGURE 1. Epitonium (Parviscala) deificum (Melvill & Standen, 1903), length: 3.76 mm. A) Full apertural view. B) Close up of protoconch and postnuclear whorls. C) Close up of costae and sculpture. D) Close up of suture. Scale bars: B, C & D = 250 µm. Photographs by B. Raines.
Figure 13 in Evolution of Janthina and Recluzia (Mollusca: Gastropoda: Epitoniidae)
Figure 13. Fossil localities on Santa Maria Island, Azores, based on da Veiga Ferreira (1961: fig. 1), Madeira et al. (2011: text-fig. 1) and Sibrant et al. (2015: fig. 2). Several other Pleistocene (MIS 5e) localities mapped along south coast by Ávila et al. (2015a: fig. 1) are not shown. (A) geological map and legend, with fossil localities; (B) semi-diagrammatic east-west cross-section, showing dips on lava flows schematically; vertical exaggeration × 20; modified slightly from Sibrant et al. (2015: fig. 6B) to allow Touril Complex to crop out at sea level around east coast. (C) location of Santa Maria Island in the Azores (Madeira et al., 2011: text-fig. 1). , Pliocene localities with Janthina krejcii sp. nov.; , Pliocene localities, some of which have yielded Janthina typica; , Pleistocene (MIS 5e) localities (most not shown). Localities: (1) Cré (no Janthina records); (2) Ponta dos Frades (no Janthina records); (3) Pinheiros (probably J. krejcii, identification uncertain); (4) Lagoinhas (MIS 5e); (5) Ponta do Norte (locality of Janthina typica neotype); (6) Ponta dos Matos (J. typica); (7) Ponta das Salinas (J. typica); (8) Ponta do Castelo (J. typica; includes also late Pleistocene, MIS 5e); (9) Pedra-que-pica (no Janthina records; includes also late Pleistocene, MIS 5e); (10) Ponta do Malbusca (no Janthina records; includes also late Pleistocene, MIS 5e); (11) Prainha (MIS 5e); (12) Miradouro de Macela (type locality of Janthina krejcii sp. nov.); (13) Figueiral (J. typica).
Figure 24 in Evolution of Janthina and Recluzia (Mollusca: Gastropoda: Epitoniidae)
Figure 24. Specimens of Janthina typica (Bronn), all except A–C enlarged uniformly. (A–C) neotype designated here of Hartungia typica Bronn, 1861 and Janthina hartungi Mayer, 1864, MIGM1312, Farolim da Ponta do Norte (North Point Lighthouse), Santa Maria I., Azores, Zanclean (photos by C. Marques da Silva). (D, E) neotype designated here of Turbo postulatus Bartrum, AUGD G5721, Kaawa Creek, SW Auckland, New Zealand, Opoitian (Zanclean). (F–I) 2 specimens, Kaawa Creek, SW Auckland, Opoitian (Zanclean); F, I, GNS TM4670; G–H, GNS TM4671. (J, K, O) holotype of Acrybia (Hartungia) chouberti Chavan, Service Géologique du Maroc, Rabat, Morocco, P7064; unwhitened photos from Rabat sent by N. H. Ludbrook (see also Ludbrook 1978: 122, pl. 12, figs 17–19, at half this scale); Fouarat, E of Casablanca, Morocco, Zanclean. (L) abraded specimen, DBUA-F-428, University of the Azores, Ponta Delgado, Azores; from Ponta do Castelo, SE tip of Santa Maria I., Azores, Zanclean, coll. S. Ávila, 15 Sep 2006 (photo by S. Ávila). (M) NMB Po.6227, ex Mayer-Eymar collection; possible type material of Janthina hartungi Mayer, modelling clay impression from natural cast in rock, Ponta dos Matos, Santa Maria I., Azores, Zanclean. (N) GNS GS12289, E branch Greeks Creek, Arahura Valley, Westland, New Zealand, Waipipian (early Piacenzian). Scale bars 10 mm; upper bar applies to Figs 24A–C, lower bar applies to all other figures.
Figure 4 in Evolution of Janthina and Recluzia (Mollusca: Gastropoda: Epitoniidae)
Figure 4 (facing page 129). Living animals in aquaria. (A) Janthina janthina (Linnaeus) (centre) and J. pallida Thomson (left, and part of another float at right) together, showing different bubble sizes in floats, and J. janthina feeding on pink eggs of J. pallida beneath float; collected at Arina Beach, Heraklion, Crete. (B) Janthina janthina, collected on beach in northern New South Wales, Australia, clearly showing forked cephalic tentacles;(C–E) Janthina janthina, all data as for Fig. 4A; C, showing forked cephalic tentacles, lack of eyes, and teeth and odontophore protruding from mouth at end of extended snout; D–E, showing extended head and snout, odontophore visible in mouth, and partially expanded right epipodium lying over shell (A, C–E, reproduced with permission of Dimitris Poursanidis, Heraklion, Crete; B, reproduced with permission of Denis Riek, Brunswick Heads, New South Wales). Scale bars 10 mm.
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