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1,692 results for “Caenogastropoda”
Figure 13 in The evolutionary and biomechanical implications of snout and proboscis morphology in Caenogastropoda (Mollusca: Gastropoda)
Figure 13. Diagrams of snout and proboscis wall structure. (A) Pomacea bridgesii (Ampullariidae); (B) Cerithium columna (Cerithiidae); (C) Opalia ballinensis (Epitoniidae); (D) Carinaria cristata (Carinariidae); (E) Mitra carbonaria (Mitridae); (F) Strombus gibberulus (Strombidae); (G) Monetaria annulus (Cypraeidae); (H) Vasum turbinellum (Turbinellidae); (I) Cabestana spengleri (Ranellidae); (J) Semicassis pyrum (Tonnidae); (K) Ficus subintermedia (Ficidae).
Figure 10 in The evolutionary and biomechanical implications of snout and proboscis morphology in Caenogastropoda (Mollusca: Gastropoda)
Figure 10. Transverse histological sections through the proboscis of three neogastropods. (A) Euplica scripta (Columbellidae) introverted proboscis; (B) E. scripta ventrolateral proboscis retractor muscles; (C) E. scripta proboscis wall; (D) Conus papilliferus (Conidae) retracted proboscis; (E) C. papilliferus ventrolateral proboscis retractor muscles; (F) C. papilliferus proboscis wall; (G) Cymbiola pulchra (Volutidae) everted proboscis; (H) C. pulchra proboscis wall. Scale bars: (A, B, G, H) 500 µm; (D, E) 1 mm; (C, F) 50 µm, for abbreviations see Appendix 2.
Figure 11 in The evolutionary and biomechanical implications of snout and proboscis morphology in Caenogastropoda (Mollusca: Gastropoda)
Figure 11. Transverse histological sections through the proboscis of four muricoidean neogastropods. (A) Vasum turbinellum (Turbinellidae) introverted proboscis and ventrolateral proboscis retractor muscles; (B) V. turbinellum accessory retractor muscles; (C) V. turbinellum proboscis wall (D) Mitra carbonaria (Mitridae) proboscis and epiproboscis; (E) M. carbonaria proboscis wall; (F) Mesoginella translucida (Marginellidae) introverted proboscis and ventrolateral proboscis retractor muscles; (G) M. translucida aortic muscles; (H) M. translucida proboscis wall; (I) Morula marginalba (Muricidae) introverted proboscis and aortic muscles (J) M. marginalba circumoesophageal nerve ring and ventral odontophoral retractor muscles; (K) M. marginalba proboscis wall. Scale bars: (A, B, D, I) 1 mm; (C, E, F, J) 200 µm; (G, H, K) 50 µm; for abbreviations see Appendix 2.
FIGURE 7 in Catalogue Of The Nominal Taxa Of Mesoamerican Pachychilidae (Mollusca: Caenogastropoda)
FIGURE 7. Type material of Mesoamerican pachychilid taxa. A. Lectotype of Melania schiedeana Philippi, 1843 (ZMB 112.952a); bar = 1 cm. B. Holotype of Pachychilus schumoi Pilsbry, 1931 (ANSP 76231); bar = 2 cm. C. Lectotype of Pachychilus (Glyptomelania) largillierti var. stolli Martens, 1899 (ZMB 109.579a); bar = 2 cm. D. Lectotype of Pachychilus subexaratus Crosse & Fischer, 1891 (MNHN 24464); bar = 3 cm. E. Lectotype of Pachychilus atratus suprastriatus (Pilsbry & Hinkley, 1910) (ANSP 99575); bar = 2 cm. F. Lectotype of Pachychilus suturalis (Pilsbry & Hinkley, 1910) (ANSP 99585a); bar = 2 cm. G. Lectotype of Pachychilus tristis (Pilsbry & Hinkley, 1910) (ANSP 99566); bar = 1.5 cm. H. Holotype of Pachychilus vallesensis (Hinkley, 1907) (ANSP 96592); bar = 2 cm.
FIGURE 6 in Catalogue Of The Nominal Taxa Of Mesoamerican Pachychilidae (Mollusca: Caenogastropoda)
FIGURE 6. Type material of Mesoamerican pachychilid taxa. A. Lectotype of Melania pyramidalis Morelet, 1849 (MNHN 24452); bar = 3 cm. B. Lectotype of Melania radix Brot, 1872 (MHNG 176); bar = 2 cm. C. Lectotype of Pachychilus rasconensis Thiele, 1928 (ZMB 109.653); bar = 1 cm. D. Lectotype of Pachychilus (Polygonatus) var. rovirosai Pilsbry, 1892 (ANSP 62938a); bar = 3 cm. E. Syntype of Melania rubida I. Lea, 1856 (USNM 119713); bar = 2 cm. F. Lectotype of Melania rusticola von dem Busch, 1858 (GSUB 14882); bar = 2 cm. G. Lectotype of Melania sargi Crosse & Fischer, 1875 (MNHN 24457); bar = 1 cm. H. Lectotype of Melania saussurei Brot, 1860 (MHNG 125); bar = 1 cm.
FIGURE 5 in Catalogue Of The Nominal Taxa Of Mesoamerican Pachychilidae (Mollusca: Caenogastropoda)
FIGURE 5. Type material of Mesoamerican pachychilid taxa. A. Syntype of Melania panucula Morelet, 1851 (MNHN 24451); bar = 2 cm. B. Paratype of Pachychilus pasionensis Pilsbry, 1956 (UMMZ 65510); bar = 1 cm. C. Lectotype of Pachychilus pila (Pilsbry & Hinkley, 1910) (ANSP 99559). D. Lectotype of Pachychilus pila var. pilula (Pilsbry & Hinkley, 1910) (ANSP 99564a); bar = 1 cm. E. Lectotype of Melania planensis I. Lea, 1858 (USNM 119725); bar = 2 cm. F. Lectotype of Pachychilus pleurotoma (Pilsbry & Hinkley, 1910) (ANSP 99592a). G. Syntype of Melania polygonata I. Lea & H.C. Lea, 1850 (USNM 119596); bar = 3 cm. H. Lectotype of Pachychilus glaphyrus potamarchus Pilsbry, 1893 (ANSP 63387a); bar = 3 cm.
FIGURE 3 in Catalogue Of The Nominal Taxa Of Mesoamerican Pachychilidae (Mollusca: Caenogastropoda)
FIGURE 3. Type material of Mesoamerican pachychilid taxa. A. Holotype of Pachychilus hinkleyi (Marshall, 1920) (USNM 336412); bar = 2 cm. B. Lectotype of Pachychilus humerosus (Pilsbry & Hinkley, 1910) (ANSP 99579); bar = 2 cm. C. Syntype of Melania immanis Morelet, 1851 (NHMUK 1893.2.4.1783), bar = 3 cm. D. Lectotype of Pachychilus indifferens Crosse & Fischer, 1891 (MNHN 24459); bar = 1 cm. E. Lectotype of Melania indiorum Morelet, 1849 (ANSP 63566); bar = 3 cm. F. Lectotype of Melania intermedia von dem Busch, 1844 (GSUB 14908); bar = 2 cm. G. Lectotype of Melania lacustris Morelet, 1849 (NHMUK 1893.2.4.1776); bar = 2 cm. H. Syntype of Melania largillierti Philippi, 1843 (ZMB 112.944); bar = 2 cm.
FIGURE 4 in Catalogue Of The Nominal Taxa Of Mesoamerican Pachychilidae (Mollusca: Caenogastropoda)
FIGURE 4. Type material of Mesoamerican pachychilid taxa. A. Lectotype of Melania larvata Brot, 1877 (MHNG 191); bar = 2 cm. B. Holotype of Melania mexicana Reeve 1860 (NHMUK 20060306– 1); bar = 2 cm. C. Paralectotype of Pachychilus moctezumensis (Pilsbry & Hinkley, 1910) (ZMB 61.697); bar = 1 cm. D. Lectotype of Pachychilus monachus (Pilsbry & Hinkley, 1910) (ANSP 99581); bar = 2 cm. E. Lectotype of Pachychilus (Glyptomelania) largillierti var. nodulosus Martens, 1899 (ZMB 109.580a); bar = 3 cm. F. Lectotype of Pachychilus (Pachychilus) chrysalis var. nympha Martens, 1899 (ZMB 109.581a); bar = 2 cm. G. Holotype of Pachychilus olssoni (Pilsbry, 1950) (ANSP 186101); bar = 2 cm. H. Lectotype of Melania opiparis Morelet, 1851 (NHMUK 1893.2.4.1759); bar = 3 cm.
FIGURE 2 in Catalogue Of The Nominal Taxa Of Mesoamerican Pachychilidae (Mollusca: Caenogastropoda)
FIGURE 2. Type material of Mesoamerican pachychilid taxa. A. Holotype of Pachychilus (Oxymelania) corpulentus Thompson, 1967 (FLMNH 19754). B. Lectotype of Melania corvina Morelet, 1849 (MNHN 24444). C. Lectotype of Pachychilus cumingii I. Lea & H.C. Lea, 1850 (NHMUK 20070009/1). D. Paralectotype of Pachychilus dalli (Pilsbry, 1896) (USNM 133214). E. Lectotype of Pachychilus atratus ganinus (Pilsbry & Hinkley, 1910) (ANSP 99577). F. Lectotype of Melania glaphyra Morelet, 1849 (MNHN 24454). G. Lectotype of Melania graphium Morelet, 1849 (MNHN 24449). H. Lectotype of Melania hellerii Brot, 1872 (MHNG 154). Scale bar = 2 cm.
FIGURE 1 in Catalogue Of The Nominal Taxa Of Mesoamerican Pachychilidae (Mollusca: Caenogastropoda)
FIGURE 1. Type material of Mesoamerican pachychilid taxa. A. Holotype of Pachychilus (Oxymelania) apheles Thompson, 1967 (FLMNH 19756); bar = 1cm. B. Syntype of Melania apis I. Lea & H.C. Lea, 1850 (USNM 119732); bar = 1 cm. C. Lectotype of Pachychilus atratus (Pilsbry & Hinkley, 1910) (ANSP 99570); bar = 2 cm. D. Lectotype of Pachychilus vallesensis attenuatus (Pilsbry & Hinkley, 1910) (ANSP 96592a); bar = 2 cm. E. Syntype of Pachychilus (Glyptomelania) glaphyrus var. bicarinatus Martens, 1901 (MNHN 24456); bar = 3 cm. F. Lectotype of Melania chrysalis Brot, 1872 (MHNG 134); bar = 2 cm. G. Lectotype of Melania cinerea Morelet, 1849 (NHMUK 1893.2.4.1799); bar = 2 cm. H. Syntype of Pachychilus (Glyptomelania) lacustris var. conradti Martens, 1899 (ZMB 109.577, Panzos, Guatemala); bar = 2 cm. I. Syntype of Pachychilus (Glyptomelania) lacustris var. conradti Martens, 1899 (ZMB 109.578, Izabal); bar = 2 cm.
F in Australian freshwater assimineids, with a synopsis of the Recent genus-group taxa of the Assimineidae (Mollusca: Caenogastropoda: Rissooidea)
F. 12. Austroassiminea letha from Ellen Brook, animal removed from shell: (A) female; (B) male. a: anus; ag: albumen gland; ast: anterior stomach; avd: anterior vas deferens; bc: bursa copulatrix; cg: capsule gland; cm: columellar muscle; ct: cephalic tentacle; dg: digestive gland; e: eye; f: foot; fgo: female genital opening; k: kidney; me: mantle edge; o: oesophagus; od: oviduct; ov: ovary; p: penis; pr: prostate; pst: posterior stomach; pvd: posterior vas deferens; r: rectum; s: sole; sn: snout; sr: seminal receptacle; t: testis.
F in Australian freshwater assimineids, with a synopsis of the Recent genus-group taxa of the Assimineidae (Mollusca: Caenogastropoda: Rissooidea)
F. 13. Head, penis and prostate of Austroassiminea letha from Ellen Brook: (A) dorsal view of the head and penis; (B) left lateral view; (C) penis; (D) prostate. avd: anterior vas deferens; cm: columellar muscle; ct: cephalic tentacle; e: eye; f: foot; mgo: male genital opening; ol: opercular lobe; omg: omniphoric groove; p: penis; pa: penial appendage; pev: penial vas deferens; ppn: penial projection; pr: prostate; pvd: posterior vas deferens; sn: snout.
F in Australian freshwater assimineids, with a synopsis of the Recent genus-group taxa of the Assimineidae (Mollusca: Caenogastropoda: Rissooidea)
F. 1. Shells of Aviassiminea palitans n.sp. (A)–(F), shells: (A) Mataranka Springs (C.150820); (B) E of Mataranka (C. 151073); (C) Brolga Spring, N of Ningbing Ranges (C.151085); (D) Roper River, near Mataranka (C.151986); (E) holotype; (F) Millstream (C.394145). (G)–(I) Protoconch, Sandfire, C.394683: (G) dorsal view; (H) detail of apex; (I) lateral view. Scale bars: (A)–(F)=0.5 mm, (G)–(I)=0.1 mm.
F in Australian freshwater assimineids, with a synopsis of the Recent genus-group taxa of the Assimineidae (Mollusca: Caenogastropoda: Rissooidea)
F. 11. Shell, operculum and radula of Austroassiminea letha from Ellen Brook: (A) and (B) operculum: (A) inner side; (B) outer side; (C) shell; (D)–(G) radula: (D) detail of cutting edge of marginal teeth; (E) view of half the rows in a portion of the radula; (F) central teeth; (G) lateral and marginal teeth.
F in Australian freshwater assimineids, with a synopsis of the Recent genus-group taxa of the Assimineidae (Mollusca: Caenogastropoda: Rissooidea)
F. 4. Pallial cavity and rectum of Aviassiminea and Austroassiminea. (A) and (B) Aviassiminea palitans n.sp. from paratype series: (A) inside roof of pallial cavity; (B) rectum. (C) and (D) Austroassiminea letha from Ellen Brook: (C) inside roof of pallial cavity; (D) rectum. ef: efferent vein; g: gill; h: heart; k: kidney; ko: kidney opening; me: mantle edge; mr: mantle roof; os: osphradium; osg: osphradial ganglion; pep: posterior end of pallial cavity; r: rectum.
F in Australian freshwater assimineids, with a synopsis of the Recent genus-group taxa of the Assimineidae (Mollusca: Caenogastropoda: Rissooidea)
F. 10. Discriminant function plots of shell measurements (see table 1) of four samples of Aviassiminea palitans n.sp. Plots of the canonical variable scores from a discriminant function analysis. Gaussian bivariate ellipses have been drawn around each sample, the ellipse centered on the sample means of the x and y variables using a probability value of 0.6827. Circles, Millstream (C.394145); stars, Sandfire (C.394147); triangles, Ningbing (C.318699); +, E. of Mataranka (C.151073).
F in Australian freshwater assimineids, with a synopsis of the Recent genus-group taxa of the Assimineidae (Mollusca: Caenogastropoda: Rissooidea)
F. 2. Operculum and radula of Aviassiminea palitans n.sp. (A) and (B) operculum, Sandfire (C.394683): (A) Outer side; (B) Inner side. (C)–(G) radula: (C) and (E) Sandfire (C.394147): (C) detail of central teeth. (D) and (G) Millstream (C.394145), (D) detail of central tooth. (F) E. of Mataranka (C. 151073). Scale bars: (A), (B)=0.5 mm, (C), (D)=10 mm, (E)–(G)=50 mm.
FIGURE 14 in <p><strong>Systematic review of diplommatinid land snails (Caenogastropoda, Diplommatinidae) endemic to the Palau Islands. (1) Generic classification and revision of <em>Hungerfordia</em> </strong><br /><strong>species with highly developed axial ribs</strong></p>
FIGURE 14. Hungerfordia expansilabris sp. nov. (A1–A4) A topotypic paratype, B0480a; (B) columella (left lateral view), a paratype from Loc. BA6-1, B0667a; (C) axial ribs above the aperture after removal of the parietal margin of inner peristome, (D1) sculpture on the penultimate whorl, and (D2) sculpture on the body whorl of a topotypic paratype (B0480a); (E) umbilical view of a paratype after removal of the spiny ribs and the outer peristome, only the last whorl shown, Loc. BA6-1, B0667b; (F1–F5) holotype, B0480T; (G) a paratype from Loc. BA5-4, B0472; (H) a paratype from Loc. BA6-1, B0667c; (I1, I2) outer surface, and (I3, I4) inner surface of operculum, a topotypic paratype, B0480. Scale bars, 1mm (A–H), 0.5 mm (I). All specimens, UMUTZ-MG.
FIGURE 29 in <p><strong>Systematic review of diplommatinid land snails (Caenogastropoda, Diplommatinidae) endemic to the Palau Islands. (1) Generic classification and revision of <em>Hungerfordia</em> </strong><br /><strong>species with highly developed axial ribs</strong></p>
FIGURE 29. Shell size and shape variation among Hungerfordia species with highly developed ribs. (A) H. triplochilus sp. nov., holotype; (B) H. expansilabris sp. nov., holotype; (C) H. nudicollum sp. nov., holotype; (D) H. echinata echinata sp. et subsp. nov., holotype; (E) H. echinata tubulispina subsp. nov., holotype; (F1) H. lamellata (Crosse, 1866), B0199a; (F2) H. lamellata (Crosse, 1866), B0282b; (G) H. alata (Crosse, 1866), B0446; (H) H. pteropurpuroides sp. nov., holotype; (I1) H. subalata sp. nov., paratype (B0655); (I2) H. subalata sp. nov., holotype; (J) H. papilio stenoptera subsp. nov., holotype; (K) H. papilio papilio sp. et subsp. nov., holotype; (L) H. goniobasis dmasechensis subsp. nov., holotype; (M) H. goniobasis goniobasis sp. et subsp. nov., holotype; (N) H. elegantissima sp. nov., holotype; (O1) H. pelewensis Beddome, 1889, B0542; (O2) H. pelewensis Beddome, 1889, B0383. Scale bar, 1mm. All specimens, UMUTZ-MG.
FIGURE 27 in <p><strong>Systematic review of diplommatinid land snails (Caenogastropoda, Diplommatinidae) endemic to the Palau Islands. (1) Generic classification and revision of <em>Hungerfordia</em> </strong><br /><strong>species with highly developed axial ribs</strong></p>
FIGURE 27. Hungerfordia papilio papilio sp. et subsp. nov. (A1–A4) A paratype from Loc. Gk4-3, B0374a; (B) columella (dorsal view), (C) axial ribs above the aperture, and (D) sculpture on the last 2–4 whorls of paratypes from Loc. Gk4-3 (B0374a, b); (E) a paratype after removal of the winged ribs, Loc. Gk4-3, B0374c; (F) a paratype from Gk4-3, B0374d; (G1– G4) holotype, B0434T; (H) a paratype from Loc. Gk6-3, B0858; (I) a paratypes from Loc. Gk7-3, B0963; (J) umbilical view of a paratype after removal of the winged ribs, Loc. Gk4-3, B0374c; (K1, K2) outer surface, and (K3, K4) inner surface of operculum of a paratype, Loc. Gk4-3, B0374. Scale bars, 1mm (A–J), 0.5 mm (K). All specimens, UMUTZ-MG.
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