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132 results for “Cephalaspidea”
Figure 3 in Description of a new species of Haminoea (Gastropoda: Cephalaspidea) from India, with an account of the diversity of the genus in the Indo-West Pacific
Figure 3. Male reproductive system of Haminoea aptei sp. nov. (a) System with upper fundus on its rounded form (BNHS opistho 1344). (b) System with upper fundus on its stretched form (BNHS opistho 1343). (c) Detail of interior of fundus (BNHS opistho 1343). Abbreviations: smg, seminal groove; ga, genital aperture; at, atrium; as, atrium sheet; lfu, lower fundus; ufu, upper fundus; sd, seminal duct; pr, prostate; rm, retractor muscle. Scale bars: a, b = 1 mm; c = 0.5 mm.
Figure 2 in Description of a new species of Haminoea (Gastropoda: Cephalaspidea) from India, with an account of the diversity of the genus in the Indo-West Pacific
Figure 2. Haminoea aptei sp. nov. (a) Apertural view (left image) and dorsal view (right image) (BNHS opistho 1361, H = 13 mm). (b) Apertural view (left image) and dorsal view (right image) (BNHS opistho 1343, H = 7.5 mm). (c) Apertural view (left image) and dorsal view (right image) (BNHS opistho 1344, H = 6 mm). (d) SEM, detail of jaw plate (BNHS opistho 1344). (e) SEM, detail of radula with central rachidian (BNHS opistho 1344). (f) SEM, surface of whole gizzard plate (BNHS opistho 1344). (g) SEM, detail of rachis and ridges (BNHS opistho 1344). (h) SEM, detail of ridge (BNHS opistho 1344). Scale bars: d, e, g = 20 µm; f = 100 µm; h = 5 µm.
Figure 1 in Description of a new species of Haminoea (Gastropoda: Cephalaspidea) from India, with an account of the diversity of the genus in the Indo-West Pacific
Figure 1. Live specimens of Haminoea aptei sp. nov. (a) Andaman Islands (BNHS opistho 1344); animal length: 18.2 mm. (b) Minicoy Island, Lakshadweep Islands (BNHS opistho 1361); animal length: 23.0 mm.
Figure 5 in The tail tells the tale: taxonomy and biogeography of some Atlantic Chelidonura (Gastropoda: Cephalaspidea: Aglajidae) inferred from nuclear and mitochondrial gene data
Figure 5. Mating sequence of two individuals of Chelidonura berolina belonging to two different colour forms. Single digit numbers indicate the sequence of events. Multiple digit numbers indicated the time at which the photographs were taken.
Figure 4 in The tail tells the tale: taxonomy and biogeography of some Atlantic Chelidonura (Gastropoda: Cephalaspidea: Aglajidae) inferred from nuclear and mitochondrial gene data
Figure 4. Scanning electron micrographs of the protoconch morphology or apical shell morphology of some specimens examined. Arrows indicate transitions in growth line pattern. A–D, Chelidonura africana: A, specimen from Portugal (MNCN 15.05/46493); B, specimen from Portugal (MNCN 15.05/46488); C, specimen from Portugal (MNCN 15.05/44368); D, juvenile specimen from Azores, Portugal (MNCN 15.05/44367). E–G, Chelidonura berolina: E, specimen from Bahamas (LACM 172272); F, specimen from Bahamas (LACM 176427); G, specimen from Bahamas (LACM 176426). H–J, Chelidonura normani sp. nov.: H, specimen from Bahamas (LACM 3126); I-J, specimen from Bahamas (LACM 3127).
Figure 3 in The tail tells the tale: taxonomy and biogeography of some Atlantic Chelidonura (Gastropoda: Cephalaspidea: Aglajidae) inferred from nuclear and mitochondrial gene data
Figure 3. Drawings of the penis and prostate of several specimens examined. A–K, Chelidonura berolina: A, specimen from Bahamas (LACM 176428); B, specimen from Bahamas (LACM 176428); C, specimen from Bahamas (LACM 176431); D, specimen from Bahamas (LACM 176428); E, specimen from Bahamas (LACM 176432); F, specimen from Bahamas (LACM 176428); G, specimen from Bahamas (LACM 176435); H, specimen from Bahamas (LACM 176428); I, specimen from Bahamas (LACM 176428); J, specimen from Martinique (LACM 176437); K, specimen from Roatán, Honduras (LACM 176433). L–M, Chelidonura africana: L, specimen from Portugal (MNCN 15.05/46493); M, specimen from Portugal (MNCN 15.05/44368). N–O, Chelidonura normani sp. nov.: N, specimen from Bahamas (LACM 3126); O, specimen from Bahamas (LACM 3125). Abbreviations: pe, penis; pr, prostate.
Figure 2 in The tail tells the tale: taxonomy and biogeography of some Atlantic Chelidonura (Gastropoda: Cephalaspidea: Aglajidae) inferred from nuclear and mitochondrial gene data
Figure 2. Maximum likelihood bootstrap consensus tree for the analysis of the combined histone 3 (H3), 16S, and cytochrome oxidase I (COI) sequence alignments. Bootstrap values are indicated above each branch. Respective posterior probabilities resulting from the Bayesian analysis are also indicated below each branch.
Figure 1 in The tail tells the tale: taxonomy and biogeography of some Atlantic Chelidonura (Gastropoda: Cephalaspidea: Aglajidae) inferred from nuclear and mitochondrial gene data
Figure 1. External morphology of some specimens of Chelidonura showing the range of colour variation. Specimens are grouped according to the authors' interpretation of species boundary hypotheses proposed in the literature. A–G, specimens similar to the original description of Chelidonura berolina Er. Marcus & Ev. Marcus, 1970: A, original drawing of C. berolina (from Marcus & Marcus, 1970); B, specimen from Bahamas (LACM 176429); C, specimen from Bahamas (LACM 3127); D, specimens from Bahamas (LACM 176427); E, specimen from Bahamas (LACM 3127); F, specimen from Yucatan, Mexico; G. specimen from Bahamas (LACM 176425). H–M, specimens similar to the original description of Aglaja hummelincki Er. Marcus & Ev. Marcus, 1970: H, specimen from Bahamas (LACM 3127); I, specimen from Bahamas (LACM 176427); J, specimen from Bahamas (LACM 176425); K, specimen from Bahamas (LACM 176426); L, specimen from Bahamas (LACM 176425); M, original drawing of A. hummelincki (from Marcus & Marcus, 1970). N–P, specimens similar to the original description of Chelidonura juancarlosi Ortea & Espinosa 1998: N, original drawing of C. juancarlosi (from Ortea & Espinosa, 1998); O, specimen from Bermuda (LACM 176434); P, specimen from Bahamas (LACM 173215). Q–S, specimens similar to the original description of Chelidonura mariagordae Ortea et al. 2004: Q, specimen from Bahamas (LACM 176435); R, original photograph of C. mariagordae (from Ortea et al., 2004); S, specimen from Bahamas (LACM 3128).
Figure 6 in The tail tells the tale: taxonomy and biogeography of some Atlantic Chelidonura (Gastropoda: Cephalaspidea: Aglajidae) inferred from nuclear and mitochondrial gene data
Figure 6. Type specimens of Chelidonura normani sp. nov. A, holotype (LACM 3125). B, paratype (LACM 3127). C, paratypes (LACM 3126). D, paratype (LACM 3128).
FIG. 2. — A in Beyond shells: first detailed morphological description of the mangrove-associated gastropod Haminoea cf. fusca (A. Adams, 1850) (Cephalaspidea, Haminoeidae), with a COI phylogenetic analysis
FIG. 2. — A, Hab River delta, Sindh Province, Balochistan Coast, Pakistan, showing estuary and associated oyster reefs; B, Haminoea cf. fusca (A. Adams, 1850) in situ; arrows show faecal matter tracks over muddy substrate; C, H. cf. fusca in situ, amongst green algae; D, egg-mass in situ, attached to muddy substrate; E, egg-mass in situ, submerged during low tide. Photograph: S. Aslam.
FIG. 4 in Beyond shells: first detailed morphological description of the mangrove-associated gastropod Haminoea cf. fusca (A. Adams, 1850) (Cephalaspidea, Haminoeidae), with a COI phylogenetic analysis
FIG. 4. — Haminoea cf. fusca (A. Adams, 1850): A, external view of male reproductive system, arrow denotes lateral bulge; B, detail of interior of atrium and fundus; C, figures modified from Bergh (1901: pl. 18, figs 44, 47, pl. 19, figs 4, 5), detail of radula with "a": central rachidian (pl. 18, fig. 44); detail of surface of gizzard plate (pl. 18, fig. 47); male reproductive system, "a": prostate (pl. 19, fig. 5); lateral view of gizzard plate (pl. 19, fig. 4); D, egg-mass. Abbreviations: as, atrium sheet; at, atrium; bc, body cavity; cg, central groove; fu, fundus; ga, genital aperture; llw, left lateral wall; lwg, grooves of lateral walls; pr, prostate; rlw, right lateral wall; rm, retractor muscles; sd, seminal duct; smg, seminal groove; w, soft warts. Scale bars: A, B, 0.5 mm; D, 1 cm.
FIG. 3 in Beyond shells: first detailed morphological description of the mangrove-associated gastropod Haminoea cf. fusca (A. Adams, 1850) (Cephalaspidea, Haminoeidae), with a COI phylogenetic analysis
FIG. 3. — Haminoea cf. fusca (A. Adams, 1850): A, live specimen, ex situ. Length c. 10 mm; B, shell, apertural view (left image) and adepertural view (right image), height, 7 mm; C, SEM, detail of radula with rachidian and first lateral teeth; D, lateral view of whole gizzard plate; E, SEM, dorsal surface of whole gizzard plate; F, SEM, detail of rodlets in dorsal part of gizzard plate. Scale bars: C, 20 µm; D, E, 100 µm; F, 2 µm.
FIGURE 3 in Philinidae, Laonidae and Philinorbidae (Gastropoda: Cephalaspidea: Philinoidea) from the northeastern Pacific Ocean and the Beaufort Sea (Arctic Ocean)
FIGURE 3. Distribution maps of the specimens studied in this paper (native species only).
FIGURE 1 in Meloscaphander grandis (Heterobranchia: Cephalaspidea), a deep-water species from the North Pacific: Redescription and taxonomic remarks
FIGURE 1. Distribution of Scaphander grandis comb. n. in the North Pacific.
Figure 34 in Systematic revision of the living species of Bullidae (Mollusca: Gastropoda: Cephalaspidea), with a molecular phylogenetic analysis
Figure 34. Gizzard plates of Bulla quoyii (A, B) and B. vernicosa (C, D). A, Auckland, New Zealand (BMNH 20030345; H = 27.1 mm). B, Albany, Western Australia (WAM S19095; H = 42.7 mm). C, Honolulu, Hawaii (BMNH 20030042; H = 31.0 mm). D, Dili, East Timor (BMNH 20040857; H = 25.0 mm). Scale bars: A, C, D = 2 mm; B = 1 mm.
Figure 37 in Systematic revision of the living species of Bullidae (Mollusca: Gastropoda: Cephalaspidea), with a molecular phylogenetic analysis
Figure 37. Variability in the female glands of Bulla ampulla (A–C), B. orientalis (D, E), B. arabica sp. nov. (F, G), B. quoyii (H, I) and B. vernicosa (J, K). Dorsal views depicted in A, E, G, H, K and anterior ventral views in B–D, F, I, J. A, B, north of Cloates, Western Australia (WAM S.19144; H = 44.0 mm). C, Nha Trag, Vietnam (BMNH 20010449; H = 49.0 mm). D, E, Taolagnaro, Madagascar (BMNH 20030672/2; H = 27.8 mm). F, G, Ras al-Khaimah, United Arab Emirates (BMNH 20060101; H = 42.2 mm). H, I, Auckland, New Zealand (BMNH 20030345; H = 29.6 mm). J, K, Lizard Island, Qld, Australia (WAM S.19142; H = 28.4 mm).
Figure 28 in Systematic revision of the living species of Bullidae (Mollusca: Gastropoda: Cephalaspidea), with a molecular phylogenetic analysis
Figure 28. Involute spire and protoconch of Bulla ampulla (A, B), B. arabica sp. nov. (C), B. orientalis (D), B. peasiana (E), B. quoyii (F), and B. vernicosa (G, H). A, Kagoshima, Japan (BMNH 20060106; H = 37.0 mm). B, Noumea, New Caledonia (BMNH 20060548; H = 58.7 mm). C, Ras al-Khaimah, United Arab Emirates (BMNH 20060102; H = 39.6 mm). D, Taolagnaro, Madagascar (BMNH 20030672/2; H = 27.8 mm). E, Hilo, Hawaii (BMNH 1910.09.28.118–120). F, Auckland, New Zealand (BMNH 20030345; H = 27.1 mm). G, Panglao, Philippines (MNHN, Paris; H = 27.7 mm). H, Dili, East Timor (BMNH 20040857; H = 25.0 mm). Scale bars: A, C–D, F = 200 Mm; B, E, G–H = 50 Mm.
Figure 36 in Systematic revision of the living species of Bullidae (Mollusca: Gastropoda: Cephalaspidea), with a molecular phylogenetic analysis
Figure 36. Male genital system (with details of prostate and penial duct) of Bulla orientalis (A–C), B. quoyii (D, E), and B. vernicosa (F–H). A, B C, Okinawa, Japan (BMNH 20040859; H = 22.0 mm). D, Auckland, New Zealand (BMNH 20030345; H = 29.6 mm). E, Albany, Western Australia (WAM S19095; H = 43.7 mm). F, G, Panglao, Philippines (MNHN, Paris; H = 27.7 mm). H, Honolulu, Hawaii (BMNH 20030042; H = 31.0 mm).
Figure 21 in Systematic revision of the living species of Bullidae (Mollusca: Gastropoda: Cephalaspidea), with a molecular phylogenetic analysis
Figure 21. Gizzard plates of Bulla mabillei (A, B), B. solida (C, D), B. gouldiana (E–G), and B. punctulata (H–J). A, B, Tenerife Island, Canary Islands (BMNH 20020457; H = 26.5, 20.4 mm). C, off Florida (HBOM 62–281; H = 34.9 mm). D, off Florida (HBOM 65-281; H = 40.0 mm). E, Baja California, Mexico (BMNH 20050366; H = 25.4 mm). F–G, Baja California, Mexico (CAS 067260; H = 40.6, 35.4 mm). H, Guanacaste, Costa Rica (INBio 03458490; H = 13.8 mm). I, Santa Cruz Island, Galapagos (CAS 067270; H = 16.5 mm). J, Puntarenas, Costa Rica (INBio 01482898; H = 19.6 mm). Scale bars: G–J = 1 mm; A–F = 2 mm.
Figure 25 in Systematic revision of the living species of Bullidae (Mollusca: Gastropoda: Cephalaspidea), with a molecular phylogenetic analysis
Figure 25. Images of living Indo-West Pacific Bulla species. A, Bulla ampulla, Tuticorin, India (H = 43 mm; photo by Malaquias). B, B. arabica sp. nov., Gulf of Aqaba, Red Sea (size unknown; adult specimen). C, B. quoyii, Edithburgh Jetty, South Australia (H = 30 mm; photo: J. Chuk). D, B. vernicosa, Panglao, Philippines (H = 30 mm; photo: M. Poddubetskaia). E, B. orientalis, Kerama Island, Japan (H = 15 mm; photo: A. Ono). F, B. vernicosa, Panglao, Philippines (H = 8 mm; photo: M. Poddubetskaia). G, B. peasiana, Hawaii (H = 15 mm; photo: S. Johnson).
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