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124 results for “Mytilida”
Figure 5. Different substrates where L in Leiosolenus (Labis) patagonicus (Bivalvia: Mytilidae) from Argentinean sea, taxonomic revision and anatomical notes
Figure 5. Different substrates where L. patagonicus can be sampled. (A-B) Aulacomya atra (MACN-29479); (C) Corallinacea algae; (D-E) Ameghinomya antiqua (P.P. King, 1832) (CNP-INV 2877); (F-H) Ostrea puelchana d′Orbigny, 1844 (CNP-INV 2877); (I) sedimentary rock with tubes (CNP-INV 2877); (J-K) detail of tubes (CNP-INV 2864).
Figure 3. L in Leiosolenus (Labis) patagonicus (Bivalvia: Mytilidae) from Argentinean sea, taxonomic revision and anatomical notes
Figure 3. L. patagonicus. Mantle cavity organs of the specimen deposited as CNP-INV 2873. (A) general view of the organism after removal of the left valve; (B-D) detail of the siphon morphology; (E) basal siphonal valve. (F-G) tubular structure secreting mucous substance. Abbreviations: AAM = anterior adductor muscle; BSV = basal siphonal valve; ES = excurrent siphon; IS = incurrent siphon; PAM = posterior adductor muscle.
Figure 4. L in Leiosolenus (Labis) patagonicus (Bivalvia: Mytilidae) from Argentinean sea, taxonomic revision and anatomical notes
Figure 4. L. patagonicus. Mantle cavity organs of the specimen deposited as CNP-INV 2873. (A) ventral view, observing the foot and gills on sides; (B) external and internal demibranch details; (C) detail of food groove over the distal edge of outer demibranch; (D-E) labial palps; (F-G) morphology of the foot; (H-I) byssus gland. Abbreviations: BF = byssal filaments; BG = byssus gland; F = foot; FG = Food groove; ID = inner demibranch; LILP = left inner labial palp; LOLP = left outer labial palp; OD = outer demibranch; RILP = right inner labial palp; ROLP = right outer labial palp.
Figure 2. L in Leiosolenus (Labis) patagonicus (Bivalvia: Mytilidae) from Argentinean sea, taxonomic revision and anatomical notes
Figure 2. L. patagonicus. Shell morphology. (A-C) substrate belonging to the holotype (NHMUK 1854.12.4.790, not found); (D-K) internal and external view of shell (CNP-INV 2887).
Figure 1 in Leiosolenus (Labis) patagonicus (Bivalvia: Mytilidae) from Argentinean sea, taxonomic revision and anatomical notes
Figure 1. Distribution map of L. patagonicus. Black dots: lots from institutions, grey dots: sampled specimens.
FIGURE 1 in Catalogue and bibliography of Recent and fossil Botula (Bivalvia: Mytilidae)
FIGURE 1. Shell characters of boring mytilid genera Botula, Lithophaga, Adula, Gregariella, and of non-boring "Notobotula". (a) left lateral view, (b) anterior view, (c) posterior view.
FIGURE 17 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 17. Diagram comparing relative maximum sizes reported* in modern species of the genus Gigantidas Cosel and B. Marshall, 2003 (thin-lined boxes), against the largest specimen** of G. c o s e li sp. nov. (specimen L4212). Mean maximum size (H = 43.7 mm, L = 197.7 mm) and H/L ratio (0.22) for genus shown by dashed lines. Faded background images are of largest specimen of both described modern species, G. gladius Cosel and B. Marshall, 2003 (H = 54.1 mm, L = 316.0 mm) and G. horikoshii Hashimoto and Yamane, 2005 (H = 49.1 mm, L = 177.8 mm). These holotype images are slightly distorted to fill the dimensions of the largest specimen of each species reported, modified from Cosel and Marshall (2003: fig. 25) and Hashimoto and Yamane (2005: fig. 8). H: shell height; L: shell length.
FIGURE 16 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 16. Diagram depicting range of relative maximum sizes reported* in species of the genus Bathymodiolus Kenk and Wilson, 1985 (sensu lato and sensu stricto) against the largest specimen of B. heretaunga sp. nov. (paratype TM8724). Modern species are represented by thin-lined boxes, fossil species by bold-lined boxes. Mean maximum size (H = 49.4 mm, L = 117.3 mm) and H/L ratio (0.44) for genus shown by dashed lines. Tick marks indicate lengths of various undescribed species (see Table 7). Faded background images are holotypes of largest (B. boomerang Cosel and Olu, 1998, H = 110.0 mm, L = 360.0 mm) and smallest (B. willapaensis (Squires and Goedert, 1991), H = 10.0 mm, L = 20.0 mm) species in the genus. These holotype images are slightly distorted to fill the dimensions of the largest specimen of each species reported, modified from Cosel and Olu (1998: fig. 1) and Squires and Goedert (1991: fig. 2.4). ad: B. aduloides Hashimoto and Okutani, 1994; ak: B. akanudaensis (Kuroda, 1931); an: B. anteumbonatus Cosel and Janssen, 2008; az: B. azoricus Cosel and Comtet in Cosel, Comtet and Krylova, 1999; bk: B. brooksi Gustafson, Turner, Lutz and Vrijenhoek, 1998; bm: B. boomerang Cosel & Olu, 1998; bv: B. brevior Cosel, Métivier and Hashimoto, 1994; ch: B. childressi Gustafson, Turner, Lutz and Vrijenhoek, 1998; ed: B. edisonensis Cosel and Janssen, 2008; el: B. elongatus Cosel, Métivier and Hashimoto, 1994; ex: B.? exbrocchii (Sacco, 1898); H: shell height; hg: B. heretaunga; hk: B. heckerae Turner, Gustafson, Lutz and Vrijenhoek in Gustafson, Turner, Lutz and Vrijenhoek, 1998; ht: B. hirtus Okutani, Fujikura and Sasaki, 2004; jp: B. japonicus Hashimoto and Okutani, 1994; L: shell length; mn: B. manusensis Hashimoto and Furuta, 2007; mi: B. marisindicus Hashimoto, 2001; mr: B. mauritanicus Cosel, 2002; pf: B. platifrons Hashimoto and Okutani, 1994; pm: B. palmarensis Kiel, Campbell and Gaillard, 2010; ps: B. puteoserpentis Cosel, Métivier and Hashimoto, 1994; sd: B. septemdierum Hashimoto and Okutani, 1994; sf: B. securiformis Okutani, Fujikura and Sasaki, 2004; th: B. thermophilus Kenk and Wilson, 1985; tta: B. tangaroa tangaroa Cosel and B. Marshall, 2003; ttu: B. tangaroa tuerkayi Cosel and Janssen, 2008; tw: B. taiwanensis Cosel, 2008a; wp: B. willapaensis (Squires and Goedert, 1991).
FIGURE 15 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 15. Graphs showing ontogenetic changes in shell height/length ratio vs. shell length in specimens of Bathymodiolus heretaunga sp. nov. and its modern congeners. A. Scatter plot of raw data. Closed symbols represent species in the B. tangaroa group; open symbols are used for other species of the B. childressi clade. B. Lines of best fit to show growth curves.: B. anteumbonatus Cosel and Janssen, 2008 (an);: B. childressi Gustafson, Turner, Lutz and Vrijenhoek, 1998 (ch);: B. edisonensis Cosel and Janssen, 2008 (ed);: B. heretaunga (hg);: B. hirtus Okutani, Fujikura and Sasaki, 2004 (ht);: B. japonicus Hashimoto and Okutani, 1994 (jp);: B. mauritanicus Cosel, 2002 (mr);: B. platifrons Hashimoto and Okutani, 1994 (pl); —: B. securiformis Okutani, Fujikura and Sasaki, 2004 (sf);: B. taiwanensis Cosel, 2008a (tw);: B. tangaroa tangaroa Cosel and B. Marshall, 2003 (tta);: B. tangaroa tuerkayi Cosel and Janssen, 2008 (ttu).
FIGURE 14 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 14. Graphs showing ontogenetic changes in shell height vs. shell length in specimens of Bathymodiolus heretaunga sp. nov. and its modern congeners. A. Scatter plot of raw data. Closed symbols represent species in the B. tangaroa group; open symbols are used for other species of the B. childressi clade. B. Lines of best fit to show growth curves.: B. anteumbonatus Cosel and Janssen, 2008 (an);: B. childressi Gustafson, Turner, Lutz and Vrijenhoek, 1998 (ch);: B. edisonensis Cosel and Janssen, 2008 (ed);: B. heretaunga (hg);: B. hirtus Okutani, Fujikura and Sasaki, 2004 (ht);: B. japonicus Hashimoto and Okutani, 1994 (jp);: B. mauritanicus Cosel, 2002 (mr);: B. platifrons Hashimoto and Okutani, 1994 (pl); —: B. securiformis Okutani, Fujikura and Sasaki, 2004 (sf);: B. taiwanensis Cosel, 2008a (tw);: B. tangaroa tangaroa Cosel and B. Marshall, 2003 (tta);: B. tangaroa tuerkayi Cosel and Janssen, 2008 (ttu).
FIGURE 12 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 12. Map to show global distribution of vent–seep mussel species. Inset: fossil and modern occurrences of New Zealand vent–mussel taxonomy.: Bathymodiolus aduloides clade;: Bathymodiolus childressi clade;: Bathymodiolus thermophilus clade;: species still in open nomenclature;: fossil occurrence. Closed and open symbols indicate modern hydrothermal vent and hydrocarbon seep environments respectively.
FIGURE 13 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 13. Stock chart showing depth ranges of described modern vent–seep mussel species and inferred palaeodepth of New Zealand hydrocarbon seep deposits. Species of the Bathymodiolus childressi clade are grouped separately from species of the B. aduloides and B. thermophilus clades to show the distinct bathymetric distributions of these two species groupings. ad: B. aduloides Hashimoto and Okutani, 1994; an: B. anteumbonatus Cosel and Janssen, 2008; az: B. azoricus Cosel and Comtet in Cosel, Comtet and Krylova, 1999; bk: B. brooksi Gustafson, Turner, Lutz and Vrijenhoek, 1998; bm: B. boomerang Cosel & Olu, 1998; bv: B. brevior Cosel, Métivier and Hashimoto, 1994; ch: B. childressi Gustafson, Turner, Lutz and Vrijenhoek, 1998; ed: B. edisonensis Cosel and Janssen, 2008; el: B. elongatus Cosel, Métivier and Hashimoto, 1994; gg: Gigantidas gladius Cosel and B. Marshall, 2003; gh: G. horikoshii Hashimoto and Yamane, 2005; hk: B. heckerae Turner, Gustafson, Lutz and Vrijenhoek in Gustafson, Turner, Lutz and Vrijenhoek, 1998; ht: B. hirtus Okutani, Fujikura and Sasaki, 2004; jp: B. japonicus Hashimoto and Okutani, 1994; mn: B. manusensis Hashimoto and Furuta, 2007; mi: B. marisindicus Hashimoto, 2001; mr: B. mauritanicus Cosel, 2002; pf: B. platifrons Hashimoto and Okutani, 1994; ps: B. puteoserpentis Cosel, Métivier and Hashimoto, 1994; sd: B. septemdierum Hashimoto and Okutani, 1994; sf: B. securiformis Okutani, Fujikura and Sasaki, 2004; th: B. thermophilus Kenk and Wilson, 1985; tta: B. tangaroa tangaroa Cosel and B. Marshall, 2003; ttu: B. tangaroa tuerkayi Cosel and Janssen, 2008; tw: B. taiwanensis Cosel, 2008a.
FIGURE 11 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 11. Scatter plot with lines of best fit showing ontogenetic changes in shell height vs. shell length (A) and shell height/length ratio vs. shell length (B) in specimens of Gigantidas coseli sp. nov. and its modern congeners.: G. c os e li;: G. gladius Cosel and B. Marshall, 2003;: G. horikoshii Hashimoto and Yamane, 2005.
FIGURE 10 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 10. Sketches of idealized internal right valves of adult specimens of Bathymodiolus heretaunga sp. nov., Gigantidas coseli sp. nov., and the two named modern species of Gigantidas Cosel and B. Marshall, 2003. Not to scale. A. B. heretaunga. B. G. c o s e l i. C. Gigantidas gladius Cosel and B. Marshall, 2003. D. Gigantidas horikoshii Hashimoto and Yamane, 2005. A and B based on holotype shell shapes but constructed as composites from details observed in several specimens for both new species. Features unknown in G. c o s e l i are estimated from those typical of the genus, and are drawn as dashed lines. C and D modified from Cosel and Marshall (2003: fig. 33) and Hashimoto and Yamane (2005: fig. 9) respectively. A: shell anterior length; aa: scar of anterior adductor; abr: scar of anterior byssal retractor; am: anterior margin; apb: scar of anterior part of posterior byssal retractor; b: beak; dm: dorsal margin; H: shell height; L: shell length; lig: ligament; pa: scar of posterior adductor; pbr: scar of posterior byssal retractor complex; pdc: posterodorsal corner; pl: pallial line; pm: posterior margin; ppb: scar of posterior part of posterior byssal retractor; u: umbo; vm: ventral margin.
FIGURE 8 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 8. Growth series and holotype of Gigantidas coseli sp. nov. A. Diagnostic lateral views of left and right valves to show growth series. Scale bar is 20 mm. A.1. Paratype L4204. A.2. Paratype TM8750. A.3. Specimen L4563. A.4. Paratype L4215. A.5. Specimen L4561. A.6. Holotype L4203. A.7. Specimen L4211. B. Diagnostic views of holotype L4203. Scale bar is 10 mm. B.1. Anterior view. B.2. Dorsal view. B.3. Lateral view of left valve. B.4. Lateral view of right valve.
FIGURE 7 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 7. Stock chart showing range and mean shell height/length ratios of specimens of Bathymodiolus heretaunga sp. nov. from each of the study localities. BX: Bexhaven; KK: Karikarihuata; MN: Moonlight North; PK: Puketawa; RK: Rocky Knob; TT: Totaranui; TW: Tauwhareparae; UH: Ugly Hill; WP: Waipiro.
FIGURE 5 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 5. Growth series and holotype of Bathymodiolus heretaunga sp. nov. A. Diagnostic lateral views of left and right valves to show growth series. Scale bar is 25 mm. A.1. Paratype L4099. A.2. Paratype L4100. A.3. Paratype L4201. A.4. Specimen L4515. A.5. Paratype L4166. A.6. Holotype TM8719. A.7. Paratype TM8734. A.8. Paratype TM8724. B. Diagnostic views of holotype TM8719. B.1. Anterior view. Scale bar is 5 mm. B.2. Dorsal view. Scale bar is 10 mm. B.3. Lateral view of right valve. Scale bar is 10 mm. B.4. Lateral view of left valve. Scale bar is 10 mm.
FIGURE 3 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 3. Geological timescale to show correlation of Miocene New Zealand series and stages with the international standard epochs and ages. E: Early; L: Late; M: Middle; Ma: million years. Modified from Cooper (2004).
FIGURE 4 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 4. Images showing typical hydrocarbon seep carbonate deposit and appearance of New Zealand hydrocarbon seep mussels in field samples before curating. A. Several float boulders (arrowed) originating upslope at Moonlight North locality. Person for scale. B. Clustered specimens of Gigantidas coseli sp. nov. occurring in situ from Bexhaven locality. Scale bar is 20 mm. C. Ex situ occurrence of specimens of G. c o s e l i (arrowed) from Moonlight North. Scale bar is 30 mm.
FIGURE 2 in New fossil mussels (Bivalvia: Mytilidae) from Miocene hydrocarbon seep deposits, North Island, New Zealand, with general remarks on vent and seep mussels
FIGURE 2. Generalized stratigraphy of the East Coast Basin, showing schematically the Miocene-age hydrocarbon seep carbonates that occur as isolated lenses with in the mudstones of the Tolaga Group. The organic-rich, underlying Waipawa Black Shale is thought to be one of the likely source rocks. Bx: Bexhaven Limestone; ESE: east-south-east; Ih: Ihungia Limestone; To: Tolaga Group; Wb: Weber Formation; Wn: Wanstead Formation; WNW: west-north-west; Wp: Waipawa Black Shale. Figure modified from Campbell et al. (2008).
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