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28 results for “Cladocopina”
Data from: The mating behaviour of the seed shrimp Parapolycope spiralis (Ostracoda: Cladocopina), with insight into the evolution of mating systems in cryptic interstitial habitats
The mating behaviour of the interstitial ostracod Parapolycope spiralis Tanaka & Tsukagoshi, 2010 is reported here for the first time. This species is adapted to an interstitial environment, and is typified by having tiny body size and being completely blind. In this paper it is presumed that the characteristics of the mating behaviour are typical for species in an interstitial environment. Observations by microscopy on mating behaviour in the laboratory showed various distinct stages: (1) the male captures the female by a sucker on the antennula; (2) the male clasps and maintains the mating position using the endopodite, the endopodite claw, and the exopodite of the antenna; (3) the male makes contact using the distal part of the upper lip; and (4) copulation takes place. These observations indicate that the sequence of stages of the mating behaviour of miniaturized animals is not necessarily always a simplified process. During the process, it seems that the male upper lip establishes physical contact stimuli with the female. Because the interstitial environment is cryptic and consists of a three-dimensional space with reduced connectivity, direct physical contact is likely to be one of the most effective and successful courtship behaviours.
FIGURE 5 in Two new species of Ostracoda from hydrothermal vents of Riftia pachyptila aggregations on the East Pacific Rise (Halocypridina; Cladocopina)
FIGURE 5. Archiconchoecia chavturi, new species, adult female, holotype: A, right mandible, mv; B, endopod left mandible, lv; C, part basis and endopod left mandible, lv; D, part coxa and basis right mandible, mv; E, coxa endite right mandible as seen through basis (indistinct), lv. (lv = lateral view; mv = medial view.)
FIGURE 8 in Two new species of Ostracoda from hydrothermal vents of Riftia pachyptila aggregations on the East Pacific Rise (Halocypridina; Cladocopina)
FIGURE 8. Archiconchoecia chavturi, new species, adult female, holotype: eggs and spermatheca on lower right and detail of spermatheca showing threadlike sperm on upper left.
FIGURE 12 in Two new species of Ostracoda from hydrothermal vents of Riftia pachyptila aggregations on the East Pacific Rise (Halocypridina; Cladocopina)
FIGURE 12. Polycopetta pax, new species, adult female, holotype: A, left maxilla, lv (nabs); B, right maxilla drawn on body, lv (nabs); C, exopod right maxilla, lv; D, precoxal endite I of maxilla, anterior to left; E, 5th limb. (lv = lateral view; nabs = not all bristles shown.)
FIGURE 11 in Two new species of Ostracoda from hydrothermal vents of Riftia pachyptila aggregations on the East Pacific Rise (Halocypridina; Cladocopina)
FIGURE 11. Polycopetta pax, new species, adult female, holotype: A, right mandible (coxale endite missing) lv; B, left mandible, mv; C, right maxilla, mv. (lv = lateral view; mv = medial view.)
FIGURE 1 in Two new species of Ostracoda from hydrothermal vents of Riftia pachyptila aggregations on the East Pacific Rise (Halocypridina; Cladocopina)
FIGURE 1. Archiconchoecia chavturi, new species, adult female, holotype, length 0.60 mm: A, complete specimen from right side; B, right valve, iv; C, left valve, iv; D, lateral view of posterior end of carapace showing both valves (detail from 2A); E, ventral view of anterior of carapace with valves partly open. (iv = inside view.)
FIGURE 13 in Two new species of Ostracoda from hydrothermal vents of Riftia pachyptila aggregations on the East Pacific Rise (Halocypridina; Cladocopina)
FIGURE 13. Polycopetta pax, new species, adult female, holotype: A, posterior of body from right side showing unextruded eggs (claws of furca missing); B, upper lip and esophagus.
FIGURE 1 in Referral of the Halocypridina Thaumatocypris (Miocene, Australia) to the Cladocopina (Ostracoda, Halocyprida)
FIGURE 1. Copy of letter sent from the late Dr Kenneth G. McKenzie to LSK dated 3 August 2000, with extraneous material deleted.
FIGURE 2. A in Referral of the Halocypridina Thaumatocypris (Miocene, Australia) to the Cladocopina (Ostracoda, Halocyprida)
FIGURE 2. A, Thaumatocypris (= Pokornyopsis) feifeli Triebel l941, holotype, left valve, length 1.02 mm, Oxfordian, Malm, Late Jurassic (figure from Triebel 1941: pl. 13: fig. 140a). B–D, Polycope sanctacatherinae Whatley & Downing 1983: B, right valve, length unknown, Balcombian, Miocene (figure from McKenzie 1974: pl. 1: fig. 1); C, D, left (length 0.41 mm) and right (length 0.42 mm) valves, Glenample Clay, Miocene, from Nadeau slide P10952.
FIGURE 5 in Pseudopolycope (P.) andeep sp. nov. from the deep Southern Ocean (Crustacea, Ostracoda, Cladocopina)
FIGURE 5. Pseudopolycope (Pseudopolycope) andeep sp. nov. SEM photographs, paratype, juvenile female: A, large pore with one (probably) sensila coming out; B, comparison of two types of pores on the shell surface; C, striae-like ornamentation antero-ventrally on the shell; D, distal part of mandibular coxa, arrow indicating small rake-like process; E, first segment of antennula showing stiff setulae covering the entire appendage; F, postero-ventral part of the uropodal lamellae, arrow indicating spine-like extension of the body.
FIGURE 3 in Pseudopolycope (P.) andeep sp. nov. from the deep Southern Ocean (Crustacea, Ostracoda, Cladocopina)
FIGURE 3. Pseudopolycope (Pseudopolycope) andeep sp. nov. A, B, holotype, female; C–F, paratype, juvenile female: A, uropodal lamella, left arrow indicating one prominent chitinous structure, right arrow indicating postero-ventral spine-like extension of the body; B, postero-dorsal and party postero-ventral part of the body, also two last claw-like extensions of both uropodal lamellae drawn in a dotted line, arrow indicating postero-ventral spine-like extension of the body; C, RV, internal view; D, Bellonci Organ; E, antenna, bristles not shown, arrow indicating short spine like process on the first segment of the endopod. Scales = 0.1 mm.
FIGURE 4 in Pseudopolycope (P.) andeep sp. nov. from the deep Southern Ocean (Crustacea, Ostracoda, Cladocopina)
FIGURE 4. Pseudopolycope (Pseudopolycope) andeep sp. nov. paratype, juvenile female: A, exopod of antenna, bristles only partially illustrated; B, endopod of antenna; C, part of the mandibular coxa; D, maxillula, two distal segments of the endopod missing; E, two distal segments of the endopod maxillula; F, distal part of the exopod maxillula; G, mandibula, coxa missing. Scale = 0.1 mm.
FIGURE 1 in Pseudopolycope (P.) andeep sp. nov. from the deep Southern Ocean (Crustacea, Ostracoda, Cladocopina)
FIGURE 1. Pseudopolycope (Pseudopolycope) andeep sp. nov. holotype, female: A, left valve, external view; B, Bellonci Organ, one bristle broken; C, antennula, long bristles not shown; D, distal part of antennula; E, antennula, indicating the length of bristles in comparison to the appendage; F, basis, endopod and exopod of antenna, long bristles not shown; G, first (distal part only), second and third segments of the endopod of antenna; H, endopod of antenna, indicating the length of bristles in comparison to the appendage, dotted line indicates where the setulae stop; I, exopod antenna, only proximal part of bristles shown; J, exopod of antenna, indicating the length of the bristles in comparison to the appendage, dotted line shows where the setulae stop. Scales = 0.1 mm.
FIGURE 2 in Pseudopolycope (P.) andeep sp. nov. from the deep Southern Ocean (Crustacea, Ostracoda, Cladocopina)
FIGURE 2. Pseudopolycope (Pseudopolycope) andeep sp. nov. holotype, female: A, mandibula, without coxa; B, distal part of mandibular coxa; C, praecoxa and coxa of maxillula; D, part of coxa, entire basis, endopod and exopod of maxillula; E, fifth limb, epipod only partially drawn, brisltes on exopod not shown, endopod lacking distal bristle; F, exopod maxillula. Scale = 0.1 mm.
Data from: The mating behaviour of the seed shrimp Parapolycope spiralis (Ostracoda: Cladocopina), with insight into the evolution of mating systems in cryptic interstitial habitats
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Figure 5 from: Tanaka H, Tsukagoshi A (2013) Description and scanning electron microscopic observation of a new species of the genus Polycopetta (Crustacea, Ostracoda, Cladocopina) from an interstitial habitat in Japan. ZooKeys 294: 75-91. https://doi.org/10.3897/zookeys.294.4846
Figure 5 - SEM images of the detailed structure of Polycopetta quadrispinata sp. n. valves. A male, paratype (SUM-CO-2095) B–D male, paratype (SUM-CO-2098) E male, paratype (SUM-CO-2094). A four spines at posteroventral margin of right valve B spines and fringe at posteroventral margin of right valve C pore system with circular depression D contiguous pore system E internal lateral view of adductor muscle scars of right valve. Arrowheads indicate simple pores.
Figure 8 from: Tanaka H, Tsukagoshi A (2013) Description and scanning electron microscopic observation of a new species of the genus Polycopetta (Crustacea, Ostracoda, Cladocopina) from an interstitial habitat in Japan. ZooKeys 294: 75-91. https://doi.org/10.3897/zookeys.294.4846
Figure 8 - SEM images of male soft parts of Polycopetta quadrispinata sp. n. A left lateral view of whole body with left valve removed B left lateral view of frontal organ C right lateral view of distal area of antennula D left lateral view of antennal endopodite. Arrow indicates a seta with serrations at ventrodistal end. Arrowhead indicates a dorsal outgrowth of male antennal endopodite. Abbreviations: 1an antennula 2an antenna en endopodite fif fifth limb fo frontal organ lf left furcal lamella md mandibula mx maxillula.
Figure 7 from: Tanaka H, Tsukagoshi A (2013) Description and scanning electron microscopic observation of a new species of the genus Polycopetta (Crustacea, Ostracoda, Cladocopina) from an interstitial habitat in Japan. ZooKeys 294: 75-91. https://doi.org/10.3897/zookeys.294.4846
Figure 7 - Polycopetta quadrispinata sp. n. A, B and D male, holotype (SUM-CO-2093) C and E female, paratype (SUM-CO-2104). A frontal organ B male antennula C female antennula D male antenna D′ endopodite of male antenna without all setae E female antenna except the exopodite. Abbreviations: ba basis en endopodite ex exopodite.
Figure 13 from: Tanaka H, Tsukagoshi A (2013) Description and scanning electron microscopic observation of a new species of the genus Polycopetta (Crustacea, Ostracoda, Cladocopina) from an interstitial habitat in Japan. ZooKeys 294: 75-91. https://doi.org/10.3897/zookeys.294.4846
Figure 13 - Polycopetta quadrispinata sp. n. SEM images of male soft parts of. A right lateral view of upper lip B left lateral view of posterior body, furcal lamellae and copulatory organ C right lateral view of the tuft of stout setae D fascicle of spermatozoa. Arrowhead indicates the tuft of stout setae. Abbreviations: cd copulatory duct lf left furcal lamella spe spermatozoa ul upper lip.
Figure 12 from: Tanaka H, Tsukagoshi A (2013) Description and scanning electron microscopic observation of a new species of the genus Polycopetta (Crustacea, Ostracoda, Cladocopina) from an interstitial habitat in Japan. ZooKeys 294: 75-91. https://doi.org/10.3897/zookeys.294.4846
Figure 12 - Posterior body of Polycopetta quadrispinata sp. n. A male, holotype (SUM-CO-2093) B female, paratype (SUM-CO-2106). Arrowhead indicates the tuft of stout setae. Abbreviations: cd copulatory duct spe spermatozoa.
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