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21 results for “Pylochelidae”
FIG. 6 in Spermatozoal morphology in the "symmetrical" hermit crab, Pylocheles (Bathycheles) sp. (Crustacea, Decapoda, Anomura, Paguroidea, Pylochelidae)
FIG. 6. — Graph of acrosome vesicle length to width (l:w) ratios in selected Anomura with the position of Pylocheles (Bathycheles) sp. shown, as indicated.
FIG. 1 in Spermatozoal morphology in the "symmetrical" hermit crab, Pylocheles (Bathycheles) sp. (Crustacea, Decapoda, Anomura, Paguroidea, Pylochelidae)
FIG. 1. — Light micrographs of spermatozoa of Pylocheles (Bathycheles) sp., view of spermatozoa; A, C, ventral; B, D-F, dorsal. Abbreviations: ar, arm; av, acrosome vesicle; cy, cytoplasm; o, operculum; p, perforatorial chamber. Scale bars: 10 µm.
FIG. 5 in Spermatozoal morphology in the "symmetrical" hermit crab, Pylocheles (Bathycheles) sp. (Crustacea, Decapoda, Anomura, Paguroidea, Pylochelidae)
FIG. 5. — Transmission electron micrographs of spermatozoa of Pylocheles (Bathycheles) sp.; A, ls of arm emanating from cytoplasm. Note: lack of visible microtubules; B, C, detail of cytoplasm showing membrane arrays, mitochondria, and membrane systems; D, high power view of lattice-like membrane array. Abbreviations: ar, arm; cy, cytoplasm; m, mitochondrion; ms, membrane system; my, membrane array. Scale bars: A-C, 1 µm; D, 0.5 µm.
FIG. 3 in Spermatozoal morphology in the "symmetrical" hermit crab, Pylocheles (Bathycheles) sp. (Crustacea, Decapoda, Anomura, Paguroidea, Pylochelidae)
FIG. 3. — Transmission electron micrographs of spermatozoa of Pylocheles (Bathycheles) sp.; A, longitudinal section (ls) of spermatozoon. Insert: detail of flocculent region of inner acrosome zone; B, slightly oblique ls of spermatozoon; C, oblique section showing detail of three regions of the inner acrosome zone, the outer acrosome zone, and the peripheral acrosome zone. Abbreviations: cy, cytoplasm; ia1, inner acrosome zone 1; ia2, inner acrosome zone 2; ia3, inner acrosome zone 3; ia4, inner acrosome zone 4; m, mitochondrion; ms, membrane system; my, membrane array; n, nucleus; npm, nuclear-plasma membrane; o, operculum; oa, outer acrosome zone; p, perforatorial chamber; pa, peripheral acrosome zone. Scale bars: 1 µm.
FIG. 2 in Spermatozoal morphology in the "symmetrical" hermit crab, Pylocheles (Bathycheles) sp. (Crustacea, Decapoda, Anomura, Paguroidea, Pylochelidae)
FIG. 2.— Semidiagrammatic representation of a longitudinal section of the spermatozoon of Pylocheles (Bathycheles) sp. Drawn from
FIGURE 6. Trizocheles vaubanae n in Larvae of two species of Trizocheles (Decapoda: Anomura: Paguroidea: Pylochelidae: Trizochelinae), description of the adult of one, and preliminary implications of development on pylochelid phylogeny
FIGURE 6. Trizocheles vaubanae n. sp., ovig. female holotype (sl = 7.7 mm) (MNHN-Pg 7766). a, chela and carpus of left cheliped (outer face); b, left second pereopod (lateral view); c, propodus and carpus of left second pereopod (mesial view); d, right third pereopod (lateral view); e, tergite of sixth pleomere, protopods of uropods, and telson (dorsal view). Scales: 1 mm.
FIGURE 3 in Larvae of two species of Trizocheles (Decapoda: Anomura: Paguroidea: Pylochelidae: Trizochelinae), description of the adult of one, and preliminary implications of development on pylochelid phylogeny
FIGURE 3. Metazoea of Trizocheles vaubanae n. sp. a, antennule; b, antenna; c, mandible; d, maxillule; e, maxilla; f, first maxilliped, g, second maxilliped; h, third maxilliped. Scale: 0.25 mm.
FIGURE 2 in Larvae of two species of Trizocheles (Decapoda: Anomura: Paguroidea: Pylochelidae: Trizochelinae), description of the adult of one, and preliminary implications of development on pylochelid phylogeny
FIGURE 2. Metazoea of Trizocheles spinosus spinosus (Henderson, 1888). a, cheliped; b, second pereopod; c, third pereopod; d, fourth pereopod; e, fifth pereopod; f, pleon and telson. Scales: 0.25 mm (a–e), and 1 mm (f).
FIGURE 1 in Larvae of two species of Trizocheles (Decapoda: Anomura: Paguroidea: Pylochelidae: Trizochelinae), description of the adult of one, and preliminary implications of development on pylochelid phylogeny
FIGURE 1. Metazoea of Trizocheles spinosus spinosus (Henderson, 1888). a, carapace (lateral view); b, antennule; c, antenna; d, mandible; e, maxillule; f, maxilla; g, first maxilliped; h, second maxilliped; i, third maxilliped. Scales: 1 mm (a), and 0.25 mm (b–i).
FIGURE 5. Trizocheles vaubanae n in Larvae of two species of Trizocheles (Decapoda: Anomura: Paguroidea: Pylochelidae: Trizochelinae), description of the adult of one, and preliminary implications of development on pylochelid phylogeny
FIGURE 5. Trizocheles vaubanae n. sp., a, ovig. female holotype (sl = 7.7 mm) (MNHN-Pg 7766), b–j, male paratype (sl = 4.3 mm) (MNHN-Pg 7770). a, shield and cephalic appendages (aesthetascs and some setae omitted); b, mandibular palp (left, inner surface); c, maxillule (left, outer face); d, maxilla (left, outer surface); e, first maxilliped (left, outer surface); f, second maxilliped (left, outer surface); g, third maxilliped (left, outer surface); h, basis and ischium of third maxilliped (left, inner surface); i, male first pleopod (left, anterior face); j, male second pleopod (left, anterior face). Scales: 1 mm.
FIGURE 4 in Larvae of two species of Trizocheles (Decapoda: Anomura: Paguroidea: Pylochelidae: Trizochelinae), description of the adult of one, and preliminary implications of development on pylochelid phylogeny
FIGURE 4. Metazoea of Trizocheles vaubanae n. sp., a–g: a, cheliped; b, second pereopod; c, third pereopod; d, fourth pereopod; e, fifth pereopod; f, pleon and telson; g, telson. Trizocheles spinosus spinosus (Henderson, 1888), h: telson. Scales: 0.25 mm (a–e), 1 mm (f), and 0.5 mm (g–h).
FIGURE 7. Trizocheles spinidigitus n in " Symmetrical " hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the " BIOPAPUA " and " PAPUA NIUGINI " expeditions in the Papua New Guinea, with descriptions of two new species
FIGURE 7. Trizocheles spinidigitus n. sp., holotype, male (sl 5.2 mm), MNHN-IU-2014-12696. A, left cheliped, chela, dorsal view; B, same, mesial view, C, same, lateral view; D, same, dactylus, mesial view; E, same, lateral face of carpus. Setae all omitted. Scale bars: A–C = 2 mm; D, E = 1 mm.
FIGURE 2. Cheiroplatea rotundioculus n in " Symmetrical " hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the " BIOPAPUA " and " PAPUA NIUGINI " expeditions in the Papua New Guinea, with descriptions of two new species
FIGURE 2. Cheiroplatea rotundioculus n. sp., holotype, female (sl 2.2 mm), MNHN-IU-2011-2620. A, carapace and cephalic appendages, dorsal view (right antennule in process of regeneration); B, anterior margin of carapace, ocular peduncles and left antennal peduncle, dorsal view; C, left antennule and antennal peduncle, lateral view; D, left third maxilliped, lateral view; E, sixth pleomere, dorsal view; F, telson and protopod of right uropod, dorsal view. Scale bars: A, E, F = 1 mm; B–D = 0.5 mm.
FIGURE 6. Trizocheles spinidigitus n in " Symmetrical " hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the " BIOPAPUA " and " PAPUA NIUGINI " expeditions in the Papua New Guinea, with descriptions of two new species
FIGURE 6. Trizocheles spinidigitus n. sp., holotype, male (sl 5.2 mm), MNHN-IU-2014-12696. A, carapace and cephalic appendages, dorsal view; B, left branchiostegal margin of carapace and antennal peduncle, lateral view; C, left third maxilliped, lateral view; D, same, ischium, ventral view (setae omitted); E, left fourth pereopod, dactylus and propodus, lateral view (setae omitted); F, left first pleopod, lateral view; G, left second pleopod, mesial view; H, same, distal segment, ventral view. Scale bars: A = 2 mm; B, C, E, G, H–J = 1 mm; D, F = 0.5 mm.
FIGURE 8. Trizocheles spinidigitus n in " Symmetrical " hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the " BIOPAPUA " and " PAPUA NIUGINI " expeditions in the Papua New Guinea, with descriptions of two new species
FIGURE 8. Trizocheles spinidigitus n. sp., holotype, male (sl 5.2 mm), MNHN-IU-2014-12696. A, left second pereopod, lateral view; B, same, dactylus to carpus, mesial view; C, left third pereopod, lateral view; D. same, dactylus to carpus, mesial view. Setae all omitted. Scale bars: 2 mm.
FIGURE 4. Cheiroplatea rotundioculus n in " Symmetrical " hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the " BIOPAPUA " and " PAPUA NIUGINI " expeditions in the Papua New Guinea, with descriptions of two new species
FIGURE 4. Cheiroplatea rotundioculus n. sp., holotype, female (sl 2.2 mm), MNHN-IU-2011-2620. A, left second pereopod, lateral view; B, same, dactylus, mesial view; C, same, carpus, mesial view; D, left third pereopod, lateral view; E, same, dactylus, mesial view; left fourth pereopod, lateral view. Scale bars: A–E = 1 mm; F = 0.5 mm.
FIGURE 3. Cheiroplatea rotundioculus n in " Symmetrical " hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the " BIOPAPUA " and " PAPUA NIUGINI " expeditions in the Papua New Guinea, with descriptions of two new species
FIGURE 3. Cheiroplatea rotundioculus n. sp., holotype, female (sl 2.2 mm), MNHN-IU-2011-2620. A, left cheliped, chela and carpus, dorsal view; B, left cheliped, mesial view; C, same, lateral view; D, same, carpus, posterodorsal view; E, details of spines on median part of palm, dorsolateral view. Scale bars: A–D = 1 mm; E = 0.5 mm.
FIGURE 1. A in " Symmetrical " hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the " BIOPAPUA " and " PAPUA NIUGINI " expeditions in the Papua New Guinea, with descriptions of two new species
FIGURE 1. A, Cheiroplatea laticauda Boas, 1926, entire animal in dorsal view, BIOPAPUA, stn CP 3646, male (sl 8.7 mm), MNHN-IU-2011-3885; B, Cheiroplatea pumicicola Forest, 1987, entire animal in dorsal view, BIOPAPUA, stn CP 3737, male (sl 3.7 mm), MNHN-IU-2011-3264.
FIGURE 5. A in " Symmetrical " hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the " BIOPAPUA " and " PAPUA NIUGINI " expeditions in the Papua New Guinea, with descriptions of two new species
FIGURE 5. A, Trizocheles manningi Forest, 1987, entire animal in dorsal view, BIOPAPUA, stn DW 3732, ovigerous female (sl 4.6 mm), MNHN-IU-2011-1039; B, Trizocheles sakaii Forest, 1987, stn DW 3745, males (sl 4.1 mm), MNHN-IU-2011- 3490.
FIGURE 1 in Redescription of Pylocheles (Bathycheles) cubensis Ortiz & Gómez, 1986, the senior synonym of Pylocheles (B.) chacei Forest, 1987 (Decapoda, Anomura, Paguroidea, Pylochelidae)
FIGURE 1. Pylocheles (Bathycheles) cubensis Ortiz & Gómez, 1986, holotype male (19 mm) (ANC/IDO.07.1.6.5.047). A, Dorsal view of whole animal (tied with strings to glass plate); B, chelae and carpi (dorsal view); C, anterior portion of shield, cephalic appendages, carpi of chelipeds, and portion of left second and third pereopods (dorsolateral view); D, enlarged dorsal view of carpi of chelipeds; E, anterior portion of shield, cephalic appendages, left cheliped, and carpi to dactyls of left second and third pereopods (lateral view); F, pleonal tergites 4–6, uropods and telson (dorsal and slightly posterior view); G, right first pleopod (internal view); H, right second pleopod (internal view). (Photographs by M. Ortiz).
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