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Fig. 11. Clavator griffithsjonesi Emberton, 1999 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 11. Clavator griffithsjonesi Emberton, 1999, genitalia, NMSA L7236: (A) entire reproductive tract (minus ovotestis); (B) penis opened longitudinally to show internal folds and pore at insertion of epiphallus. Abbreviations: ag – albumen gland, bc – bursa copulatrix, bcd – bursa copulatrix duct, ep – epiphallus, epp – epiphallus pore, f – flagellum, ga – genital atrium, hd – hermaphrodite duct, p – penis, pf – folds lining penis lumen, prm – penial retractor muscle, sod – spermoviduct, v – vagina, vd – vas deferens.
Fig. 25 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 25. Living animals from Tsingy Beanka: (A) Acroptychia bathiei Fischer-Piette & Bedoucha, 1965, st'n 13/06, shell diameter 23.2 mm, NMSA L7315; (B) Tropidophora humbug sp. n., st'n 12/06, shell diameter 28.3 mm, paratype, NMSA L7204/T2984; (C) Tropidophora secunda Fischer-Piette & Bedoucha, 1965, st'n 03/06, shell diameter approx. 19.0 mm; (D) Clavator griffithsjonesi Emberton, 1999, st'n 12/06, shell height 94.8 mm, NMSA L7192; (E) Ampelita milloti Fischer-Piette, 1952, st'n 07/09, shell diameter 19.2 mm, NMSA L8502; (F) Ampelita namerokoensis Fischer-Piette, 1952, st'n 12/06, shell diameter 20.3 mm, NMSA L8442; (G) Kalidos griffithshauchleri Emberton, 2002, st'n 12/06, shell diameter approx. 60 mm; (H) Kalidos maryannae sp. n., st'n 12/06, shell diameter 22.5 mm, paratype, NMSA L7193/T2944.
Fig. 9 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 9. Tropidophora sericea sp. n. and T. chavani: (A–C) T. sericea, holotype, Tsingy Beanka, max. diameter 37.3 mm, height 18.9 mm, AMS C.474166; (D, E) adult teleoconch sculpture of T. sericea (holotype) and T. chavani (NMSA L8447) respectively, scale bars = 2.5 mm.
Fig. 21. Bathia madagascariensis Robson, 1914 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 21. Bathia madagascariensis Robson, 1914: (A–C) Tsingy Beanka, st'n 03/12, max. diameter 24.4 mm, NMSA L8829; (D) Tsingy de Namoroka, st'n 930/97, max. diameter 19.5 mm, NMSA L8828.
Fig. 8 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 8. Tropidophora secunda Fischer-Piette & Bedoucha, 1965, radula, NMSA L7040: (A) entire width of radula, scale bar = 200 μm; (B) rachidian and inner lateral teeth, scale bar = 50 μm; (C) outer lateral and marginal teeth, scale bar = 50 μm.
Fig. 7 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 7. Tropidophora secunda Fischer-Piette & Bedoucha, 1965: (A–C) Tsingy Beanka, st'n 03/06, max. diameter 21.5 mm, NMSA L7040; (D) Tsingy Beanka, st'n 03/06, subadult, max. diameter 20.0 mm, NMSA L7040; (E) Kelifely Plateau, max. diameter 18.8 mm, NMSA L6798; (F–H) holotype (faded), 'Madagascar', Cuming collection, max. diameter 22.0 mm, NHMUK 20110470.
Fig. 12 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 12. Ampelita andriamamonjyi sp. n.: (A–C) holotype, max. diameter 29.3 mm, height 15.1 mm, AMS C.474164; (D–F) paratype, max. diameter 27.7 mm, height 14.5 mm, NMSA L8441/T2657.
Fig. 4 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 4. Tropidophora chavani Fischer-Piette, 1949: Tsingy Beanka, st'n 15/06, max. diameter 27.0 mm, NMSA L7129.
Fig. 6 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 6. Tropidophora humbug sp. n., radula, paratype NMSA L7042/T2961: (A) entire width of radula, scale bar = 250 μm; (B) rachidian and left inner lateral teeth, scale bar = 100 μm; (C) right outer lateral and marginal teeth, scale bar = 100 μm.
Fig. 3 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 3. Acroptychia bathiei Fischer-Piette & Bedoucha, 1965, radula, NMSA L7039: (A) entire width of radula; (B) oblique view of left half row. Scale bars = 100 μm.
Fig. 5 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 5. Tropidophora humbug sp. n.: (A–C) holotype, Tsingy Beanka, max. diameter 31.5 mm, height 16.3 mm, AMS C.474165; (D–F) paratype, heavily banded specimen, Tsingy de Bemaraha, max. diameter 30.4 mm, height 14.1 mm, NMSA L8444/T2658; (G) operculum of holotype, external surface, max. diameter 11.0 mm, AMS C.474165.
Fig. 16 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 16. Ampelita beanka sp. n., genitalia, paratype, NMSA L8504/T2983: (A) entire reproductive tract; (B) external view of penial complex; (C) penis opened longitudinally to show internal folds and raised papilla at insertion of epiphallus. Abbreviations: ag – albumen gland, bc – bursa copulatrix, bcd – bursa copulatrix duct, ep – epiphallus, ga – genital atrium, hd – hermaphrodite duct, p – penis, pf – folds lining penis lumen, pp – penis papilla, prm – penial retractor muscle, sod – spermoviduct, v – vagina, vd – vas deferens.
Fig. 2 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 2. Acroptychia bathiei Fischer-Piette & Bedoucha, 1965: (A–C) Tsingy Beanka, st'n 18/06, max. diameter 23.7 mm, NMSA L7174; (D–F) Antsingimavo, st'n 04/06, NMSA L7091: (D) typical shell, max. diameter 23.0; (E) pale yellow specimen with a less elevated spire, max. diameter 21.7 mm; (F) juvenile specimen, max. diameter 14.9 mm.
Fig. 19 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 19. Ampelita namerokoensis Fischer-Piette, 1952: (A–C) typical specimen, Tsingy Beanka, st'n 07/09, max. diameter 22.1 mm, NMSA L8445; (D) depressed specimen, Tsingy Beanka, st'n 12/06, max. diameter 23.1 mm, NMSA L8440.
Fig. 1 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 1. Geographical location of study areas: (A) map of central western Madagascar showing the broader location of the karst (tsingy) formations studied (contour at 1000 m); (B) detail of the Antsingimavo karsts; (C) detail of Tsingy Beanka, dashed line represents approximate limits of the reserve; shaded area represents forested habitat on karst hills (redrawn from Middleton 2010). Legend: * – Bokarano River Cave; # – Kimanambolo Bat Cave; @ – Kinahango Cave.
Fig. 24 in New species of land snails (Mollusca: Gastropoda) from two isolated karst formations in central western Madagascar: Tsingy Beanka and Antsingimavo, with additional notes on other regional endemics
Fig. 24. Kalidos maryannae sp. n., genitalia, paratype, NMSA L8470/T2904: (A) entire reproductive tract; (B) penis opened longitudinally to show well-developed penial verge extending from epiphallus; (C) allospermatophore from bursa copulatrix, head end missing. Abbreviations: ag – albumen gland, bc – bursa copulatrix, bcd – bursa copulatrix duct, ep – epiphallus, f – flagellum, ga – genital atrium, og – oviducal gland, p – penis, ps – penis sheath, pv – penial verge, prm – penial retractor muscle, sc – spermatophore capsule, sod – sperm-oviduct, st – spermatophore tail, v – vagina, vd – vas deferens.
Experimental introgression in Drosophila: Asymmetric postzygotic isolation associated with chromosomal inversions and an incompatibility locus on the X chromosome
<p>Interspecific gene flow (introgression) is an important source of new genetic variation, but selection against it can reinforce reproductive barriers between interbreeding species. We used an experimental approach to trace the role of chromosomal inversions and incompatibility genes in preventing introgression between two partly sympatric <em>Drosophila virilis</em> group species, <em>D. flavomontana </em>and<em> D. montana</em>. We backcrossed F<sub>1</sub> hybrid females from a cross between <em>D. flavomontana female </em>and<em> D. montana </em>male with the males of the parental species for two generations and sequenced pools of parental strains and their reciprocal 2<sup>nd</sup> generation backcross (BC<sub>2</sub>mon and BC<sub>2</sub>fla) females. Contrasting the observed amount of introgression (mean hybrid index, HI) in BC<sub>2</sub> female pools along the genome to simulations under different scenarios allowed us to identify chromosomal regions of restricted and increased introgression. We found no deviation from the HI expected under a neutral null model for any chromosome for the BC<sub>2</sub>mon pool, suggesting no evidence for genetic incompatibilities in backcrosses towards <em>D. montana</em>. In contrast, the BC<sub>2</sub>fla pool showed high variation in the observed HI between different chromosomes, and massive reduction of introgression on the X chromosome (large X-effect). We find that this observation is compatible with reduced recombination combined with at least one dominant incompatibility locus residing within the X inversion(s). Overall, our study suggests that genetic incompatibilities arising within chromosomal inversions can play an important role in speciation.</p>
Dataset for "Species diversity and molecular characterization of Alternaria section Alternaria isolates collected mainly from cereal crops in Canada" by Jeremy R. Dettman, Quinn Eggertson, and Natalie E. Kim
<p>Dataset consists of three files, each containing aligned nucleotide sequences from 559 Alternaria strains. The three sequenced loci are ASA-10, ASA-19, and rpb2. Strain names are stated in the header of each sequence.</p>
Dataset and figures for "Sex in a virtual reality: experimental evidence for sexual isolation due to variation in perception of the environment"
<p>We quantified the strength of assortative mating when variation in the perception of the environment was manipulated experimentally. We manipulated the olfactory neurons of two groups of <em>Drosophila melanogaster </em>which changed their perception of their environment. In response to light (invisible to the flies), one group was designed to smell food (a positive stimulus), while the other group was designed to smell a dangerously high concentration of CO<sub>2</sub> (a negative stimulus). We combined both groups of flies, exposed them to a lit habitat and another habitat that was not, and allowed them to choose between these. We then measured the degree of assortative mating between the two types of flies due to any spatial population structure induced by the flies themselves. To control for any assortative mating due to other reasons, we also measured assortative mating when the heterogeneity of the environment could not be perceived by the flies, and when the environment was actually homogeneous.</p>
FIG. 3 in Morphological description and molecular phylogeny of two diatom clones from the genus Ulnaria (Kützing) Compère isolated from an ultraoligotrophic lake at the Pole of Cold in the Northern Hemisphere, Republic of Sakha (Yakutia), Russia
FIG. 3. — Cells in the culture Ulnaria pilum Kulikovskiy & Lange-Bertalot LAB55 attached to substrate: A, LM, mucilage strands are stained by Alcian blue in single cell; B, LM, cell aggregates; C, SEM, there are no traces of mucilage on the unattached ends of cells, tree closed girdle bands of each valve are pointed by arrowheads; D, SEM, attachment occurs with mucilage excreted through the pore field. Scale bars: A, B, 50 µm; C, 5 µm; D, 1 µm.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.