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44 results for “karst formations”
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.
FIG. 1 in Bats of the Sangkulirang limestone karst formations, East Kalimantan - a priority region for Bornean bat conservation
FIG. 1. Map of the Sangkulirang peninsula, East Kalimantan, Indonesia, showing settlements and major rivers as well as the major karst formations (dark grey shading) and forest cover (light grey shading). Base camps used at the formations are marked by circles. Map produced by Paul Banks using a forest coverage (including plantations and burnt areas) from the Berau Forest Management Project, and karst and geographic information from Regional Development Agency (BAPPEDA) in Berau, and Anon (1973)
FIGURE 5 in A new species in the Cyrtodactylus intermedius (Squamata: Gekkonidae) group from an isolated limestone karst formation in southwestern Cambodia
FIGURE 5. Photographs of C. regicavernicolus sp. nov. in preservative. A. Rostral region of holotype male CBC 03257 illustrating rostral bordered posteriorly by a single internasal scale (arrow). B. Precloacal region of holotype male CBC 03257 precloacal pores (arrows). C. Precloacal region of paratype female CBC 03298 illustrating precloacal pits (arrows).
FIGURE 4 in A new species in the Cyrtodactylus intermedius (Squamata: Gekkonidae) group from an isolated limestone karst formation in southwestern Cambodia
FIGURE 4. Photographs of C. regicavernicolus sp. nov. in life. A. Holotype adult male CBC 03257. B. Paratype adult male CBC 03259. C. Unsexed juvenile CBC 03263 from holotype locality. Photographs by Thy Neang.
FIGURE 1. A in A new species in the Cyrtodactylus intermedius (Squamata: Gekkonidae) group from an isolated limestone karst formation in southwestern Cambodia
FIGURE 1. A. Map illustrating the type localities of C. regicavernicolus sp. nov. (circle) and its closest relatives in both phylogeny and geography, C. laangensis (pentagon) and C. bokorensis (triangle). B. Paratype (CBC 03259) locality of C. regicavernicolus sp. nov. C. Holotype locality of C. regicavernicolus sp. nov. at Phnom Preah Kuhear Loung. Photograph by Saveng Ith.
FIGURE 3. A in A new species in the Cyrtodactylus intermedius (Squamata: Gekkonidae) group from an isolated limestone karst formation in southwestern Cambodia
FIGURE 3. A. MFA of the closest relatives of Cyrtodactylus regicavernicolus sp. nov. B. Percent contributions of each data type to the inertia of MFA dimensions 1–4. The red dotted line is the average value if all characters contributed equally to the amount of variation.
FIGURE 2 in A new species in the Cyrtodactylus intermedius (Squamata: Gekkonidae) group from an isolated limestone karst formation in southwestern Cambodia
FIGURE 2. Fifty percent majority-rule consensus phylogram resulting from partitioned Bayesian analysis of 1,035 characters of the coding region of the mitochondrial ND2 gene from Cyrtodactylus geckos. Numbers at nodes are Bayesian posterior probabilities (left) and bootstrap values ≥ 50 from a separate maximum likelihood analysis (right). Species names are followed by voucher numbers (where known) and GenBank accession numbers in parentheses. The holotype of C. regicavernicolus sp. nov. is illustrated.
FIGURES 31–34 in A new Eunotia (Bacillariophyta: Eunotiales) species from Karst formations of southern China
FIGURES 31–34. Eunotia sudeticiformis sp. nov. Narrow morphotype. SEM, internal views. 31. Whole valve view showing striae in trough–like openings in the center, but with individual areolae at the dorsal and ventral margins. Scale bar = 1 μm. 32, 33. Center of the valve showing areolae in one (Fig. 32) or two rows (Fig. 33) at the dorsal and ventral portions of the valve as well as in trough-like lines in the center. Scale bars = 1 μm. 34. Valve apex with helictoglossae and large rimportulae evident. Small spines can be seen on the exterior of the dorsal edge of the valve. Pseudoseptum is small at the apex. Scale bar = 1 μm.
FIGURES 28–30 in A new Eunotia (Bacillariophyta: Eunotiales) species from Karst formations of southern China
FIGURES 28–30. Eunotia sudeticiformis sp. nov. Narrow morphotype. SEM, external views. 28. Whole valve showing striae in shallow troughs, distal raphe ends curved onto the valve face near the apex and small spines scattered along the dorsal margin. Scale bar = 1 μm. 29. Close up of valve center with each areola with a thickened rim that occludes the opening (compare with the few areolae without occlusions). Note that there are few short striae intercalated between the full-length striae on the dorsal margin. Scale bar = 1 μm. 30. Valve apex with distal raphe end barely curving onto the valve face. A few larger areolae are positioned near the raphe opening. The apex on the valve face is unornamented. On the mantle the rimoportula opening is evident. Scale bar = 1 μm.
FIGURES 24–27 in A new Eunotia (Bacillariophyta: Eunotiales) species from Karst formations of southern China
FIGURES 24–27. Eunotia sudeticiformis sp. nov. Wider morphotype. SEM, internal views. 24, 25. Valve views, showing the striae are trough–like. Short striae between the regular striae are evident on the dorsal margin. Scale bars = 1 μm. 26. Valve apex with a single rimportula and helictoglossa evident. A pseudoseptum is present at the terminus. Scale bar = 1 μm. 27. Pseudoseptum, helictoglossa and grooved striae are evident at the terminus. Scale bar = 1 μm.
FIGURES 19–23 in A new Eunotia (Bacillariophyta: Eunotiales) species from Karst formations of southern China
FIGURES 19–23. Eunotia sudeticiformis sp. nov. Wider morphotype. SEM, external views. 19. Valve view of entire valve, showing distal raphe ends extending slightly onto the valve face. Striae occur in narrow channels. Distinctly larger poroids are present near the distal raphe ends. Scale bar = 1 μm. 20. Valve apex showing areolae have thin, narrow rims. Two larger openings are evident near the distal raphe end. Scale bar = 1 μm. 21. Valve center with uniseriate striae that extend onto the dorsal mantle. A few short striae along the dorsal margin are interspersed amongst the rest of the striae. Areolae are bordered by a thin rim. Scale bar = 1 μm. 22. Girdle view showing the numerous cingula, each bearing several rows of small poroids. Striae are present on the mantle, and raphe has dilated proximal ends. Scale bar = 1 μm. 23. Closer view of valve in girdle view showing raphe branch, disorganized areolae near the raphe and distinct opening of the rimportula. Scale bar = 1 μm.
FIGURES 1–18 in A new Eunotia (Bacillariophyta: Eunotiales) species from Karst formations of southern China
FIGURES 1–18. Eunotia sudeticiformis sp. nov. LM. Valve view, size diminution series. 1–9. Wider morphotype. 5. Holotype. 10–18. More narrow morphotype. Scale bar = 10 μm.
Fig. 10 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. 10. Conulinus randalanai sp. n. and C. rufoniger (Reeve, 1849): (A, B) C. randalanai, holotype, height 16.9 mm, AMS C.469591; (C) C. randalanai, paratype, height 17.5 mm, NMSA L8469/T2897; (D–E) C. rufoniger, Diego Suarez [Antsiranana] district, 8 km south of Orangea, height 18.6 mm, NMSA L8443.
Figure 6 in The onset of hazel wood formation in Norway spruce (Picea abies [L.] Karst.) stems
<p>The anatomy of secondary disturbed zones and their growth in the later stages of indentation. (a) Asymmetric formation of a secondary disturbed zone (arrow) after the termination of the primary disturbed zone formation in the third annual growth ring. Cross-section, scale bar = 500 μm. (b) Symmetric formation of a secondary disturbed zone (arrows) in the third annual growth ring. Arrowheads show succeeding indentations within annual growth rings that have been previously indented. Cross-section, scale bar = 500 μm. (c) Early stages of the formation of a secondary disturbed zone in the marginal zones of the fourth annual growth ring. Polyphenolic compounds present in both tracheids and parenchyma cells (arrows) while the leaf trace (lt) growth has not yet been completed. Tangential section, scale bar = 200 μm. (d) Secondary disturbed zone with rays, and intertwined and twisted tracheids (arrows). Outside the zone, tracheids were only slightly undulated (arrowheads). Radial section of the marginal zone in the seventh indented annual growth ring, scale bar = 500 μm. (e) Aggregation of uniseriate and biseriate rays (arrowheads) into the multiseriate parenchyma ray (arrow) in the central region of the seventh indented annual growth ring. Cross-section in the polarised light microscopy, scale bar = 100 μm. (f) Shape and size modifications of the parenchyma ray cells (arrowheads) in the marginal zone on the boundary of the seventh indented annual growth ring. Cross-section in the polarised light microscopy, scale bar = 100 μm. (g) Continuing growth of hazel wood zones in the eighth annual growth ring. Aggregated multiseriate parenchyma rays (arrowheads) occur in both the marginal zones and the central regions of the hazel wood. Large disturbed zones are indicated by arrows. Tangential section in the polarised light microscopy, scale bar = 200 μm. (h) Close-up view of the aggregated parenchyma ray structure (arrows) and disturbed tracheids (arrowheads) in the eleventh annual growth ring. Tangential section, scale bar = 100 μm</p>
Figure 5 in The onset of hazel wood formation in Norway spruce (Picea abies [L.] Karst.) stems
<p>Distribution of polyphenolic compounds within disturbed zones. (a) Polyphenolic compounds present inside the longitudinal tracheids (black arrows), parenchyma rays (arrowheads), and both disturbed tracheids and traumatic parenchyma cells (yellow arrows). Unstained radial section, scale bar = 100 μm. (b) Close-up view of disturbed cell lumens filled with polyphenolic compounds (arrows). Crystals were also present inside the traumatic parenchyma cells (arrowheads). Unstained radial section, scale bar = 50 μm. (c) Polyphenolic compounds inside undisturbed tracheid lumens (black arrow). Yellow arrows show residues of disturbed tracheids. Bright-field microscopy of the cross-section made above a disturbed zone, scale bar = 50 μm. (d) Polyphenolic compounds inside disturbed tracheids (black arrows) located in close proximity to a parenchyma ray. Yellow arrow shows a large disturbed tracheid which disrupts the entirety of a ray. There was a conspicuous hypertrophy and disordering of parenchyma cells in the upper part of a ray (yellow arrowheads). Radial section, scale bar = 100 μm</p>
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