Find research datasets worth reusing

FIGURE 9 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections

FIGURE 9. Antennella secundaria (Gmelin, 1791): A, third stem internode with nematothecae; B, ahydrothecate internode with one nematotheca; C, ahydrothecate internode with three nematothecae; D, lateral view of hydrothecate internode showing hydrotheca and mesial superior nematotheca (arrow); E, lateral view of hydrothecate internode showing hydrotheca and lateral nematothecae (arrow). Nemertesia ramosa (Lamarck, 1816): cauline apophysis showing nematothecae and mamelon (arrow); G, fragment of hydrocladium showing arrangement; H, hydrocladial internode with hydrotheca and nematothecae. Scale bars: 200 µm (A–C, F–G), 100 µm (D–E, H).

FIGURE 8 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections

FIGURE 8. Schizotricha profunda (Nutting, 1900): A–B, cauline internodes showing axillary hydrotheca and cauline apophysis; C–D, hydrocladial internodes; E, detail of hydrocladial internode, showing hydrotheca and basal part of two gonothecae; F, fragment of stem showing hydrocladial disposition and a gonotheca. Scale bars: 200 µm (C–D, F), 100 µm (A– B, E).

FIGURE 7 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections

FIGURE 7. Lytocarpia myriophylum (Linnaeus, 1758): A, rhomboid prosegment with nematotheca; B, hydrocladial apophysis and nematothecae; C, fragment of hydrocladium showing hydrothecal arrangement; D–E, hydrothecae; F, distal part of hydrotheca showing cusps of hydrothecal aperture. Scale bars: 200 µm (A, C, E), 100 µm (B, D, F).

FIGURE 6 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections

FIGURE 6. Sertularella gayi (Lamouroux, 1821): A–D: hydrothecae showing variation in hydrothecal shape; E, distal part of gonotheca. Diphasia margareta Hassall, 1841: F, hydrotheca and origin of branch; G, distal part of hydrotheca showing hydrothecal aperture; H, characteristic perisarc thickening (arrow). Scale bars: 200 µm (A–F), 100 µm (G–H).

FIGURE 5 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections

FIGURE 5. Clytia gigantea (Hincks, 1866): A, hydrotheca; B, detail of distal part of hydrotheca showing aperture with cusps. Zygophylax levinseni (Saemundsson, 1911): C, fragment of branch showing hydrothecal arrangement; D, hydrotheca, pedicel and apophysis; E, origin of branch showing apophysis and perisarc hole left by missing nematotheca; F, nematotheca; G, gonotheca; H, nematocyst (arrow). Scale bars: 200 µm (A, C, G), 100 µm (B, D–F), 10 µm (H).

FIGURE 4 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections

FIGURE 4. Modeeria rotunda (Quoy & Gaimard, 1827): A, hydrotheca; B, basal part of hydrotheca showing diaphragm (arrow). Stegolaria geniculata (Allman, 1888): C, hydrotheca (note geniculate arrangement); D, hydrotheca showing plicate operculum; E, basal part of hydrotheca showing diaphragm (arrow); F, detail of distal part of hydrotheca. Stegopoma plicatile (M. Sars, 1863): G, adnate hydrotheca; H, free hydrotheca. Scale bars: Scale bars: 200 µm (A, C-D, G-H), 100 µm (B, E–F),

FIGURE 3 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections

FIGURE 3. Acryptolaria crassicaulis (Allman, 1888): A, hydrotheca; B, macrobasic mastigophore nematocyst (arrow). Cryptolarella abyssicola (Allman, 1888): C-D, hydrothecae; E, gonotheca. Lafoea dumosa (Fleming, 1820): F, hydrotheca; G, detail of basal part of hydrotheca; H, isorhiza nematocyst. Scale bars: 200 µm (A, C-F), 100 µm (G), 10 µm (B, H).

FIGURE 2 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections

FIGURE 2. Amphinema biscayana (Browne, 1907): A, cross section of polysiphonic stem, showing main axial tube and accessory ones; B, cross section of a distal main tube (note inner network of perisarc); C, Polyp perisarc cup originating from auxiliary tube. D, polyp emerging from perisarc cup; E-F, gonophores; G, actinula-like form; H, microbasic eurytele nematocyst (arrow). Scale bars: 200 µm (A-B, D, E-F), 100 µm (C, G), 10 µm (H).

FIGURE 6 in Benthodytes marianensis, a new species of abyssal elasipodid sea cucumbers (Elasipodida: Psychropotidae) from the Mariana Trench area

FIGURE 6. Neighbour-joining (NJ) tree based on H3 sequences. The bootstrap values are NJ/ML at each node and the values below 50% were cut off.

FIGURE 4 in Benthodytes marianensis, a new species of abyssal elasipodid sea cucumbers (Elasipodida: Psychropotidae) from the Mariana Trench area

FIGURE 4. Neighbour-joining (NJ) tree based on 16S rRNA sequences. The bootstrap values are NJ/ML at each node and the values below 50% were cut off.

FIGURE 3 in Benthodytes marianensis, a new species of abyssal elasipodid sea cucumbers (Elasipodida: Psychropotidae) from the Mariana Trench area

FIGURE 3. Benthodytes marianensis sp. nov. dorsal ossicles. a–c: lateral view. d: ventral view. e: dorsal view. f: lateral view of the peculiar cross-shaped ossicle. Scale 50 µm.

FIGURE 1. A in Benthodytes marianensis, a new species of abyssal elasipodid sea cucumbers (Elasipodida: Psychropotidae) from the Mariana Trench area

FIGURE 1. A: Individual in situ. The black arrow indicates flattened and serrated anterior brim. The white arrow indicates filiform tips of dorsal papillae. The yellow arrow points at anus. B: Specimen before preservation in 95% alcohol. The arrow indicates almost retracted papillae. C: Dorsal view.

FIGURE 2 in Benthodytes marianensis, a new species of abyssal elasipodid sea cucumbers (Elasipodida: Psychropotidae) from the Mariana Trench area

FIGURE 2. SEM images of ossicles. A: the dorsum, arrow indicates the peculiar cross-shaped ossicles. B: the ventrum, arrow represents the large rod-shaped. C: the brim. D, tentacles. Scale 100 µm.

FIGURE 5 in Benthodytes marianensis, a new species of abyssal elasipodid sea cucumbers (Elasipodida: Psychropotidae) from the Mariana Trench area

FIGURE 5. Neighbour-joining (NJ) tree based on COI sequences. The bootstrap values are NJ/ML at each node and the values below 50% were cut off.

FIGURE 3 in A new glass sponge genus (Hexactinellida: Euplectellidae) from abyssal depth of the Yap Trench, northwestern Pacific Ocean

FIGURE 3. Rhizophyta yapensis gen. et sp. nov. Spicules of holotype (SEM). A. Four types of pinular dermal hexactins. B. Four types of pinular atrial hexactins, whole and enlarged ray end. C. Pinular dermal hexactin from the transition of main body and peduncle. D. Two types of atrial pentactins, similar to dermal pentactins of the main body. E. Atrial pentactin with longer proximal ray. F. Dermal pentactin from the transition of main body and peduncle, whole and enlarged proximal ray end. G. Discohexaster and enlarged secondary ray end. H. Three types of choanosomal hexactins, whole and enlarged ray end. I. Two types of choanosomal diactins, whole and enlarged tip and center. J. Dermal pentactin of the peduncle, whole and enlargements of ray ends and coarsely spined central area.

FIGURE 4 in A new glass sponge genus (Hexactinellida: Euplectellidae) from abyssal depth of the Yap Trench, northwestern Pacific Ocean

FIGURE 4. Rhizophyta yapensis gen. et sp. nov. Differing spicules of paratypes. A. Five types of diactins from paratype A. B. Discohexaster from paratype C. C. Enlarged ray ends of discohexaster from paratype C.

FIGURE 1 in A new glass sponge genus (Hexactinellida: Euplectellidae) from abyssal depth of the Yap Trench, northwestern Pacific Ocean

FIGURE 1. Rhizophyta yapensis gen. et sp. nov., specimens. A. Holotype. Whole specimen (A1), lateral view of atrial surface (A2), and half-lateral view of dermal surface (A3). B. Paratype A. Whole collected sample (B1) and in situ image (B2). C. Paratype B. Collected sample (C1), dermal surface (C2), and atrial surface (C3). D. Paratype C. Collected sample with main body cut in half (D1), lateral view of main body (D2), and dermal surface (D3).

FIGURE 2 in A new glass sponge genus (Hexactinellida: Euplectellidae) from abyssal depth of the Yap Trench, northwestern Pacific Ocean

FIGURE 2. Rhizophyta yapensis gen. et sp. nov., surfaces of holotype. A. Atrial surface. B. Close-up image of atrial lattice. C. SEM of atrial lattice. D. Dermal surface with radiating subdermal strands of diactins. E. Close-up image of dermal lattice. F. SEM of dermal lattice. G. Base of peduncle with root-like structures. H. Close-up image of the veil of pentactins covering the peduncle. I. SEM of the veil of pentactins covering the peduncle. J. SEM of fused diactins in root-like structures.

opennotspecifiedJul 2019View details →

FIGURE 20. Tharyx hessleri n in New species of Cirratulidae (Annelida, Polychaeta) from abyssal depths of the Clarion-Clipperton Fracture Zone, North Equatorial Pacific Ocean

FIGURE 20. Tharyx hessleri n. sp. Holotype (LACM-AHF Poly 11287): A, anterior end through setiger 14, right lateral view; B, far posterior segments, dorsal view; C, posterior 3 setigers and pygidium, dorsal view. Stained with Shirlastain A.