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79 results for “crinoid associate”
Text-fig. 2. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate,, NM S 4764, x 3. Specimen with ventral arm coiling. The specimen is on its dorsum in slate with all five rays curled ventrally inward toward mouth area on underside of disk. Barely visible are tips of two jaws; slightly exposed are proximal parts of rays in oral view extending outward from disk. The location of abrupt ventral bending of rays is indicated by emergence from slate of five rays in aboral view that point inward toward buried disk. Based on ventral bending of rays and intimate association with crinoids Eospondylus has been interpreted as stratigraphic first occurrence of Order Euryalida, which contains epizoic gorgonocephalid and euryalid basket-stars of modern oceans. This status is rejected using new evidence from isolated vertebrae. [Photo by Alexander Glass]. in Isolated Ossicles Of The Family Eospondylidae Spencer Wright, 1966, In The Lower Devonian Of Bohemia (Czech Republic) And Correction Of The Systematic Position Of Eospondylid Brittlestars (Echinodermata: Ophiuroidea: Oegophiurida)
Text-fig. 2. Eospondylus primigenius (STÜRTZ) Bundenbach, Eschenbach-Bocksberg quarry, Lower Devonian, Lower Emsian (Zlichovian), Hunsrück Slate,, NM S 4764, x 3. Specimen with ventral arm coiling. The specimen is on its dorsum in slate with all five rays curled ventrally inward toward mouth area on underside of disk. Barely visible are tips of two jaws; slightly exposed are proximal parts of rays in oral view extending outward from disk. The location of abrupt ventral bending of rays is indicated by emergence from slate of five rays in aboral view that point inward toward buried disk. Based on ventral bending of rays and intimate association with crinoids Eospondylus has been interpreted as stratigraphic first occurrence of Order Euryalida, which contains epizoic gorgonocephalid and euryalid basket-stars of modern oceans. This status is rejected using new evidence from isolated vertebrae. [Photo by Alexander Glass].
Fig. 11 in Description Of Crinotonia Anastasiae, New Genus, New Species, A New Crinoid Associated Pontoniine Shrimp (Crustacea: Caridea) From Nha Trang Bay, Vietnam, With Inclusion Of Periclimenes Attenuatus Bruce, 1971, In The New Genus
Fig. 11. Pontoniopsis comanthi Borradaile, ovigerous female (PCL 1.5 mm), Mun Island, Nha Trang Bay: a, general view; b, front of carapace, dorsal view; c, antennule; d, antenna. Scale bar: a = 2 mm; b = 3 mm; c, d = 4 mm.
Fig. 6 in Description Of Crinotonia Anastasiae, New Genus, New Species, A New Crinoid Associated Pontoniine Shrimp (Crustacea: Caridea) From Nha Trang Bay, Vietnam, With Inclusion Of Periclimenes Attenuatus Bruce, 1971, In The New Genus
Fig. 6. Crinotonia anastasiae, new genus, new species, holotype (e), allotype (a-d, f): a, distal margin of sixth segment and telson, lateral view; b, telson, dorsal; c, uropods; d, e, distal part of telson; f, appendix interna of second male pleopods. Scale bar: a-c = 2 mm; d, e = 0.7 mm; f = 0.3 mm.
Fig. 3 in Description Of Crinotonia Anastasiae, New Genus, New Species, A New Crinoid Associated Pontoniine Shrimp (Crustacea: Caridea) From Nha Trang Bay, Vietnam, With Inclusion Of Periclimenes Attenuatus Bruce, 1971, In The New Genus
Fig. 3. Mouthparts of Crinotonia anastasiae, new genus, new species, allotype: a, mandibule; b, maxillula; c, maxilla; d, first maxilliped; e, second maxilliped; f, third maxilliped. Scale bar = 1 mm.
Fig. 5 in Description Of Crinotonia Anastasiae, New Genus, New Species, A New Crinoid Associated Pontoniine Shrimp (Crustacea: Caridea) From Nha Trang Bay, Vietnam, With Inclusion Of Periclimenes Attenuatus Bruce, 1971, In The New Genus
Fig. 5. Crinotonia anastasiae, new genus, new species, allotype: a-d, dactylus of major second pereiopod. Scale bar = 2 mm.
Fig. 4 in Description Of Crinotonia Anastasiae, New Genus, New Species, A New Crinoid Associated Pontoniine Shrimp (Crustacea: Caridea) From Nha Trang Bay, Vietnam, With Inclusion Of Periclimenes Attenuatus Bruce, 1971, In The New Genus
Fig. 4. Crinotonia anastasiae, new genus, new species, allotype: a, first pereiopod; b, c, chela of first pereiopod; d, major second pereiopod; e, minor second pereiopod; f, chela of minor second pereiopod; g, third pereiopod; h, same, ventral margin of propodus; i, dactylus of third pereiopod; j, same, distal part. Scale bar: a, e, g = 1 mm; b, c, f, i = 0.5 mm; d = 2 mm; j =no scale bar.
Fig. 1 in Description Of Crinotonia Anastasiae, New Genus, New Species, A New Crinoid Associated Pontoniine Shrimp (Crustacea: Caridea) From Nha Trang Bay, Vietnam, With Inclusion Of Periclimenes Attenuatus Bruce, 1971, In The New Genus
Fig. 1. Crinotonia anastasiae, new genus, new species: a, holotype female; b, allotype male. Scale bar = 5 mm.
Fig. 7 in Description Of Crinotonia Anastasiae, New Genus, New Species, A New Crinoid Associated Pontoniine Shrimp (Crustacea: Caridea) From Nha Trang Bay, Vietnam, With Inclusion Of Periclimenes Attenuatus Bruce, 1971, In The New Genus
Fig. 7. Crinotonia attenuatus (Bruce), new combination: a, ovigerous female (PCL 3.8 mm); b, male (PCL 2.3 mm). Scale bar = 5 mm.
Text-fig. 6. a. Vertical section showing part of body-chamber of a Cenoceras in the top of the Main Cenoceras Bed associated with attached oysters below and stringers of crinoid debris below and stretching laterally. Coin 23 mm in diameter. b. Complete lateral half of conch showing intact and elastically deformed septa on which rests crinoid debris that spreads across the exposed septa and onto the adjacent substrate. Conch approximately 180 mm in diameter. c. Individual showing dispersed crinoid and molluscan debris within body-chamber and septa in the crushed inner whorls that have taken a sparite cement prior to, and after having undergone brittle deformation. 160 mm in diameter. d. Vertically embedded specimen showing the loss of septa in the inner whorls that are infilled with matrix mottled by bioturbation. Tape measure provides scale. in 'Cenoceras Islands' In The Blue Lias Formation (Lower Jurassic) Of West Somerset, Uk: Nautilid Dominance And Influence On Benthic Faunas
Text-fig. 6. a. Vertical section showing part of body-chamber of a Cenoceras in the top of the Main Cenoceras Bed associated with attached oysters below and stringers of crinoid debris below and stretching laterally. Coin 23 mm in diameter. b. Complete lateral half of conch showing intact and elastically deformed septa on which rests crinoid debris that spreads across the exposed septa and onto the adjacent substrate. Conch approximately 180 mm in diameter. c. Individual showing dispersed crinoid and molluscan debris within body-chamber and septa in the crushed inner whorls that have taken a sparite cement prior to, and after having undergone brittle deformation. 160 mm in diameter. d. Vertically embedded specimen showing the loss of septa in the inner whorls that are infilled with matrix mottled by bioturbation. Tape measure provides scale.
Text-fig. 7. a. Worn section through a horizontally bedded body-chamber and phragmocone, body-chamber showing oyster attached to inside of aperture as well as burrow mottling. Tape measure provides scale. b. Body-chamber and crushed phragmocone with body-chamber and phragmocone entirely filled with bioturbated matrix containing stringers of crinoid and molluscan debris. Flank of phragmocone encrusted by oysters. Tape measure for scale. c. Complex of Thallassinoides and Diplocraterion burrows associated with conch that has been eroded out by wave action. A few 'Ghostly' fragments of ammonite are also present. Original scope of the image approximately 400 mm. c. Verically embedded conch with largely intact septa and camera infilled with burrowed matrix containing crinoid debris. Tape measure for scale. in 'Cenoceras Islands' In The Blue Lias Formation (Lower Jurassic) Of West Somerset, Uk: Nautilid Dominance And Influence On Benthic Faunas
Text-fig. 7. a. Worn section through a horizontally bedded body-chamber and phragmocone, body-chamber showing oyster attached to inside of aperture as well as burrow mottling. Tape measure provides scale. b. Body-chamber and crushed phragmocone with body-chamber and phragmocone entirely filled with bioturbated matrix containing stringers of crinoid and molluscan debris. Flank of phragmocone encrusted by oysters. Tape measure for scale. c. Complex of Thallassinoides and Diplocraterion burrows associated with conch that has been eroded out by wave action. A few 'Ghostly' fragments of ammonite are also present. Original scope of the image approximately 400 mm. c. Verically embedded conch with largely intact septa and camera infilled with burrowed matrix containing crinoid debris. Tape measure for scale.
Fig. 10 in Description Of Crinotonia Anastasiae, New Genus, New Species, A New Crinoid Associated Pontoniine Shrimp (Crustacea: Caridea) From Nha Trang Bay, Vietnam, With Inclusion Of Periclimenes Attenuatus Bruce, 1971, In The New Genus
Fig. 10. Crinotonia attenuatus (Bruce), new combination, male (PCL 3.2 mm). Scale bar = 5 mm.
FIGURE 1 in Notes on some crinoid associated decapod crustaceans (Crustacea: Decapoda) of Lakshadweep Archipelago, Central Indian Ocean
FIGURE 1. Map showing the study area: Lakshadweep archipelago. Red dots indicate different sampling area and the adjacent Islands. Alphabets in parenthesis indicate corresponding species collected. a, f, k. Synalpheus stimpsonii (de Man, 1888); b, c, m, n. Synalpheus carinatus (de Man, 1888); d, e, g–j, l. Synalpheus comatularum (Haswell, 1882); o. Pontoniopsis comanthi Borradaile, 1915; p. Palaemonella pottsi (Borradaile, 1915); q. Permanotus purpureus (Gordon, 1934); r, s. Allogalathea elegans (Adams & White, 1848).
FIGURE 2 in Notes on some crinoid associated decapod crustaceans (Crustacea: Decapoda) of Lakshadweep Archipelago, Central Indian Ocean
FIGURE 2. Host crinoids of crustacean decapods collected from the Lakshadweep group of Islands. a. Comaster multifidus (Müller, 1841); b–c. Phanogenia gracilis (Hartlaub, 1893); d. Phanogenia distincta (Carpenter, 1888); e. Phanogenia gracilis (Hartlaub, 1893); f. Stephanometra indica (Smith, 1876); g. Phanogenia multibrachiata (Carpenter, 1888); h. Phanogenia gracilis (Hartlaub, 1893); i. Stephanometra tenuipinna (Hartlaub, 1890).
FIGURE 32 in Crinoid-associated shrimps of the genus Laomenes A. H. Clark, 1919 (Caridea: Palaemonidae: Pontoniinae): new species and probable diversity
FIGURE 32. Laomenes nudirostris (Bruce, 1978), ovigerous female (A–H), male (I). A, chela of pereiopod I. B, pereiopod II. C, D, same, carpus. E, same, finger. F, G, carpo-propodal articulation of pereiopod III. H, dactylus of pereiopod III. I, appendix masculina and appendix interna Scale 1 mm.
FIGURE 27 in Crinoid-associated shrimps of the genus Laomenes A. H. Clark, 1919 (Caridea: Palaemonidae: Pontoniinae): new species and probable diversity
FIGURE 27. Laomenes ceratophthalmus (Borradaile, 1915), juvenile (pcl. 3 mm) (A, B), juvenile (pcl. 6 mm) (C, D), juvenile (pcl. 11 mm) (E). A–E, distal part of carapace and rostrum. Scale 1 mm.
FIGURE 23 in Crinoid-associated shrimps of the genus Laomenes A. H. Clark, 1919 (Caridea: Palaemonidae: Pontoniinae): new species and probable diversity
FIGURE 23. Laomenes tigris sp. nov., ovigerous female (A–F), male (G, H). A, pereiopod I. B, same, chela. C, G, pereiopod II. D, H, same, fingers. E, pereiopod III. F, same, distal margin of propodus and dactylus. Scale 1 mm.
FIGURE 20 in Crinoid-associated shrimps of the genus Laomenes A. H. Clark, 1919 (Caridea: Palaemonidae: Pontoniinae): new species and probable diversity
FIGURE 20. Laomenes tigris sp. nov., ovigerous female (A–E), male (F, G). A, B, F, G, distal part of carapace and rostrum. C, distal part of carapace. D, eyes. Scale 1 mm.
FIGURE 31 in Crinoid-associated shrimps of the genus Laomenes A. H. Clark, 1919 (Caridea: Palaemonidae: Pontoniinae): new species and probable diversity
FIGURE 31. Laomenes nudirostris (Bruce, 1978), ovigerous female (A–I), juvenile (J, K). A, B, J, K, distal part of carapace and rostrum. C, D, eyes. E, antenna. F, distal margin of incisor process. G, epistomial horns. H, thoratic sternite V with basal segments of pereiopod III. I, telson. Scale 1 mm; F, without scale.
FIGURE 12 in Crinoid-associated shrimps of the genus Laomenes A. H. Clark, 1919 (Caridea: Palaemonidae: Pontoniinae): new species and probable diversity
FIGURE 12. Laomenes clarki sp. nov., ovigerous female. A, pereiopod III. B, same, dactylus. Scale 1 mm.
FIGURE 16 in Crinoid-associated shrimps of the genus Laomenes A. H. Clark, 1919 (Caridea: Palaemonidae: Pontoniinae): new species and probable diversity
FIGURE 16. Laomenes pardus sp. nov., ovigerous female. A, B, distal part of carapace and rostrum. C, antennule. D, same, distolateral margin of basal antennular segment. E, distal margin of incisor process of mandible. F, maxillule. Scale 1 mm; E, without scale.
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