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181 results for “Aleutian Islands”
FIGURES 7–10 in A new sea star of the genus Leptasterias (Asteroidea: Asteriidae) from the Aleutian Islands
FIGURES 7–10. Leptasterias tatei sp. nov., Holotype, 2011-158.001.Fig. 7, cleaned adambulacral region (actinal [AC] & adambulacral [AD] spines), Bar = 3.0 mm. Fig. 8, uncleaned adambulacral region, showing wreaths of straight & crossed pedicellariae. Fig. 9, Live, in situ Adak Island, Thumb Bay, 13 m (leg. R.N. Clark, 20 July, 2011), Bar = 8.0 cm. Fig. 10, Paratype, 2011-159.001. Oral side, Bar = 4 cm.
FIGURES 1–6 in A new sea star of the genus Leptasterias (Asteroidea: Asteriidae) from the Aleutian Islands
FIGURES 1–6. Leptasterias tatei sp. nov., Holotype, 2011-158.001. Fig. 1, whole animal, aboral, Bar = 3.0 cm. Fig. 2, aboral surface, Bar = 3.0 mm. Fig. 3, aboral spines & pedicellariae, Bar = 1.0 mm. Fig. 4, aboral surface cleaned of tissue, showing carinal [C] and dorsolateral [DL] ossicles & spines, Bar = 3.0 mm. Fig. 5, aboral spine with pedicellariae, Bar = 1.0 mm. Fig. 6, marginal area of ray, cleaned of tissue, showing arrangement of ossicles (superomarginal [SM], inferomarginal [IM], actinal [AC], and adambulacral [AD]), Bar = 3.0 mm.
FIGURE 16 in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 16. Raspailia (Hymerhaphiopsis) fruticosa n. sp. A. Holotype on a bivalve shell (Astarte sp.). Grid marks are 1 cm. B. Polyspicular tract with echinating acanthotylostyle. Scale bar is 100 µm. C. Two echinating acanthotylostyles. Scale bar is 100 µm. D. Smooth choanosomal style. Scale bar is 100 µm. E. Echinating acanthotylostyle among styles. Scale bar is 20 µm.
FIGURE 15.Stelodoryx siphofuscus n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 15.Stelodoryx siphofuscus n. sp. A. Thick choanosomal styles and thin ectosomal anisotornotes and scattered isochelas. Scale bar is 100 µm. B. Terminal tooth on thicker end of ectosomal anisotornote. Scale bar is 10 µm. C. Large category of isochela, shaft twisted. Scale bar is 20 µm. D. Detail of (C), showing the shaft merging into alae. Scale bar is 10 µm. E. Small category of isochelas. Scale bar is 20 µm. F. Small category of isochela. View on top of alae. Scale bar is 2 µm.
FIGURE 14. Stelodoryx siphofuscus n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 14. Stelodoryx siphofuscus n. sp. A. Holotype, probably broken stalk on the right. Scale is 5 x 1 cm. B. Smooth outer surface of the tube. Square is 1 cm. C. Section through the tube. Tube walls are light brown. Inner wall (darker brown) with larger openings visible. Square is 1 cm. D. Ectosome, nearly square brushes of thin ectosomal anisotornotes. Scale bar is 300 µm. E. Choanosomal reticulation of ascending thicker spicule tracts and connecting thinner tracts. Scale bar is 300 µm.
FIGURE 12. Stelodoryx mucosa n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 12. Stelodoryx mucosa n. sp. A. Holotype. Grid marks are 1 cm. B. Detail of holotype surface. C. Section perpendicular to surface showing choanosomal reticulation of acanthostyles and ectosomal tylote bundles. Scale bar is 400 µm. D. Ectosomal brushes of tylotes on choanosomal reticulation. Scale bar is 400 µm. E. Choanosomal reticulation of acanthostyles. Scale bar is 400 µm. F. Ectosomal tylote with microspined ends among acanthostyles and numerous sigmas. Scale bar is 100 µm.
FIGURE 11 in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 11. Coelosphaera (Histodermion) kigushimkada n. sp. A. Choanosomal acanthostyle among other spicules. Scale bar is 100 µm. B. Ectosomal tornote (upper left to lower right) among other spicules. Scale bar is 100 µm. C. Arcuate isochelae. Scale bar is 20 µm.
FIGURE 10 in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 10. Coelosphaera (Histodermion) kigushimkada n. sp. A. Holotype (left) and paratype (right). Grid marks are 1 cm. B. Close-up of surface with an ostium and densely packed isochelae. Scale bar is 100 µm. C. ectosomal tornotes and isochelae in the ectosome. Scale bar is 100 µm. D. Choanosomal reticulation of acanthostyles. Scale bar is 100 µm.
FIGURE 9. Artemisina flabellata n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 9. Artemisina flabellata n. sp. A. Cleistochela with peculiar central plate and almost closed alae. Scale bar is 2 µm. B. Cleistochelae with completely closed alae from different angels. Scale bar is 2 µm. C. Thin toxon among cleistochelas. Scale bar is 20 µm.
FIGURE 17. Dysidea kenkriegeri n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 17. Dysidea kenkriegeri n. sp. A. Holotype. Square is 1cm. B. View from above showing openings of tubes. Square is 1 cm. C. Section through tube. Square is 1cm. D. Section perpendicular to surface. Surface is on the left. Below the surface the reticulation of spongin fibers cored with foreign material is denser than in the deeper parts (upper right). Scale bar is 500 µm. E. Reticulation of spongin fibers just below the ectosome, clear spongin and coring sediment clearly visible. Scale bar is 200 µm. F. Ascending spongin fibers and connecting fibres are loaded with foreign material. Scale bar is 200 µm.
FIGURE 8. Artemisina flabellata n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 8. Artemisina flabellata n. sp. A. Holotype. Grid marks are 1cm. B. Close-up of surface of holotype. Note thin organic ectosome. Grid marks are 1 cm. C. Choanosomal style (upper left to lower right). Scale bar is 100 µm. D. Ectosomal thinner style (upper left to lower right). Scale bar is 100 µm. E. Microspined end of ectosomal thinner style on very slightly microspined head of choanosomal style. Scale bar is 10 µm. F. Acanthostyle among isochelas. Scale bar is 30 µm.
FIGURE 7. Artemisina clavata n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 7. Artemisina clavata n. sp. A. Holotype. Grid marks are 1 cm. B. Paratype, grid marks are 1 cm. C. Choanosomal thick styles (upper left to lower right) among ectosomal subtylostyles with acanthose heads. Scale bar is 100 µm. D. Ectosomal subtylostyle (upper left to lower right) with microspined head. Scale bar is 20 µm. Inset at upper right corner shows microspined head of ectosomal subtlostyle. Scale bar is 2 µm. E. Palmate isochela. Scale bar is 1 µm. F. Toxas with microspined ends (lower left to upper right). Scale bar is 20 µm.
FIGURE 5. Megaciella triangulata n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 5. Megaciella triangulata n. sp. A. Holotype (lower specimen) and paratype (upper specimen). Grid marks are 1 cm. B. Choanosomal reticulation of styles. Scale bar is 500 µm. C. Large and small toxa in between choanosomal reticulation. Scale bar is 500 µm. D. Bundle of ectosomal tylotes. Scale bar is 200 µm. E. Ectosomal tylote with microspined ends and scattered small toxas and isochelas. Scale bar is 20 µm. F. Choanosomal thick and thin styles. Scale bar is 20 µm.
FIGURE 6. Megaciella triangulata n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 6. Megaciella triangulata n. sp. A. Acanthostyle with scattered microscleres. Scale bar is 20 µm. B. Large toxon with microspined ends surrounded by small toxas and isochelas. Scale bar is 20 µm. C. Small category of toxon, spined all over and isochelas. Scale bar is 20 µm. D. Larger category of palmate isochela with pointed ends. Scale bar is 3 µm. E. Smaller category of isochela without pointed ends. Scale bar is 2 µm. F. Small anisochela. Scale bar is 1 µm.
FIGURE 4. Megaciella lobata n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 4. Megaciella lobata n. sp. A. Acanthostyle among thick styles and with thick category of sigma on top. Note weak spination of blunt end of thick style and isochela on top of it near upper middle of photo. Scale bar is 20 µm. B. Close up of middle part of A. Toxon of smaller, thicker category and isochela on surface of acanthostyle. Scale bar is 10 µm. C. Long, thin toxon from upper left corner to lower right. Scale bar is 20 µm. D. Isochela. Scale bar is 2 µm.
FIGURE 3. Megaciella lobata n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 3. Megaciella lobata n. sp. A. Holotype. Grid marks are 1cm. B. Spicule tracts of coring styles and echinating acanthostyles. Scale bar is 500 µm. C. Ectosomal membrane with tylotes and microscleres. Scale bar is 200 µm. D. Choanosomal thick style. Scale bar is 100 µm. E. Choanosomal thin style (from lower left to upper right) with scattered acanthostyles, other spicules, and some fragments of spicules. Scale bar is 100 µm. F. Ectosomal anisotylote (from upper left to lower right). Scale bar on lower left is 100 µm. Insets at upper right corner show unequal microspined ends of tylote. Scale bars are 2 µm.
FIGURE 13. Stelodoryx mucosa n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 13. Stelodoryx mucosa n. sp. A. Choanosomal acanthostyle and two ectosomal tylotes with microspined ends. Scale bar is 100 µm. B. Microspined end of tylote and sigmas on the surface of an acanthostyle. Scale bar is 20 µm. C. Isochela and sigmas. Scale bar is 20 µm. D. Isochelas. Scale bar is 10 µm.
FIGURE 1 in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 1. Map of the Aleutian Island Region showing the collection locations for type material presented. 1, Cornulum globosum n. sp., 2, Megaciella lobata n. sp., 3, Megaciella triangulata n. sp., 4, Artemisina clavata n. sp., 5, Artemisina flabellata n. sp., 6, Raspailia (Hymeraphiopsis) fruticosa n. sp., 7, Coelosphaera (Histodermion) kigushimkada n. sp., 8, Stelodoryx mucosa n. sp., 9, Stelodoryx siphofuscus n. sp., and 10, Dysidea kenkriegeri n. sp.
FIGURE 2. Cornulum globosum n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 2. Cornulum globosum n. sp. A. Globular holotype with fistules and parchment-like ectosome, grid marks are 1 cm. B. Detached part of ectosome with polyspicular tracts facing to the left. Scale bar is 2.5 cm. C. Smooth choanosomal styles (lower left to upper right) and smooth tylotes (horizontal in center) with scattered microscleres. Scale bar is 100 µm. D. Isochela. Scale bar is 10 µm. E. Thick toxon. Scale bar is 10 µm. F. Thin toxon. Scale bar is 10 µm.
Fig. 4 in Two New Variegated Snailfishes of the Genus Careproctus (Teleostei: Scorpaeniformes: Liparidae) from the Aleutian Islands, Alaska
Fig. 4. Scatter plots of significant morphometric characters distinguishing Careproctus comus, new species, and Careproctus faunus, new species: (A) Interorbital width; (B) Snout length; (C) Anal-fin connection to caudal-fin length; (D) Caudal-fin base depth.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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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.