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45 results for “Echiura”
FIGURE 9. Alpheus naos n in Three transisthmian snapping shrimps (Crustacea: Decapoda: Alpheidae: Alpheus) associated with innkeeper worms (Echiura: Thalassematidae) in Panama
FIGURE 9. Alpheus naos n. sp., male holotype from Punta Culebra, Isla Naos, Panama (USNM 1100668): a, third maxilliped, lateral view; b, second pereiopod, lateral view; c, third pereiopod, lateral view. Scale bar: 1 mm.
FIGURE 11 in Three transisthmian snapping shrimps (Crustacea: Decapoda: Alpheidae: Alpheus) associated with innkeeper worms (Echiura: Thalassematidae) in Panama
FIGURE 11. Color patterns in life. Alpheus christofferseni n. sp., male from Bocas del Toro, Panama (USNM 1100667) (a–c): a, b, dorsal view (note partly faded chromatopores in a); c, same, lateral view. Alpheus naos n. sp., male holotype from Punta Culebra, Isla Naos, Panama (USNM 1100668) (d, e): d, dorsal view; e, lateral view. Alpheus aequus Kim & Abele, 1988, female from Coibita, Coiba Marine National Park, Panama (MNHN-Na 16389) (f): dorsal view.
FIGURE 8. Alpheus naos n in Three transisthmian snapping shrimps (Crustacea: Decapoda: Alpheidae: Alpheus) associated with innkeeper worms (Echiura: Thalassematidae) in Panama
FIGURE 8. Alpheus naos n. sp., male holotype from Punta Culebra, Isla Naos, Panama (USNM 1100668): a, major cheliped, lateral view; b, same, distal merus, carpus and chela, mesial view; c, minor cheliped, dorsolateral view; d, same, chela, mesial view; e, same, lateral view. Scale bar: 1 mm.
FIGURE 7. Alpheus naos n in Three transisthmian snapping shrimps (Crustacea: Decapoda: Alpheidae: Alpheus) associated with innkeeper worms (Echiura: Thalassematidae) in Panama
FIGURE 7. Alpheus naos n. sp., male holotype from Punta Culebra, Isla Naos, Panama (USNM 1100668): a, frontal region, dorsal view; b, same, lateral view; c, tooth on mesioventral carina of first antennular segment, lateral view; d, second pleopod, lateral view; e, same, appendix masculina and appendix interna; f, left uropod, dorsal view; g, telson, dorsal view; h, same, detail of posterior margin. Scale bars: 1 mm.
FIGURE 5. a, b in The first record of an association between a pontoniine shrimp (Crustacea: Decapoda: Palaemonidae: Pontoniinae) and a thalassematid spoon worm (Echiura: Thalassematidae), with the description of a new shrimp species
FIGURE 5. a, b—Eupontonia nudirostris sp. nov., holotype, non-ovigerous female, live coloration; c—echiurian host—Listriolobus sp. (Echiura, Thalassematidae).
FIGURE 4 in The first record of an association between a pontoniine shrimp (Crustacea: Decapoda: Palaemonidae: Pontoniinae) and a thalassematid spoon worm (Echiura: Thalassematidae), with the description of a new shrimp species
FIGURE 4. Eupontonia nudirostris sp. nov., holotype, non-ovigerous female: a—pereiopod I; b—distal segments of pereiopod I; c—pereiopod II; d—distal segments of pereiopod II; e—carpo-meral articulation of pereiopod II; f—fingers of pereiopod II; g—pereiopod III; h—dactylus of pereiopod III; i—pereiopod IV; j—pereiopod V.
FIGURE 2 in The first record of an association between a pontoniine shrimp (Crustacea: Decapoda: Palaemonidae: Pontoniinae) and a thalassematid spoon worm (Echiura: Thalassematidae), with the description of a new shrimp species
FIGURE 2. Eupontonia nudirostris sp. nov., holotype, non-ovigerous female: a, b—front of carapace and rostrum, lateral view; c—front of carapace and anterior appendages, dorsal view; d—processes of fourth and fifth thoracic sternites; e—sixth abdominal somite, telson and uropods, lateral view; f—same, dorsal view; g—distal margin of telson, dorsal view; h—antennule, dorsal view; 1—same, ventral view; j—antenna, ventral view; k—pleopod II.
FIGURE 3 in The first record of an association between a pontoniine shrimp (Crustacea: Decapoda: Palaemonidae: Pontoniinae) and a thalassematid spoon worm (Echiura: Thalassematidae), with the description of a new shrimp species
FIGURE 3. Eupontonia nudirostris sp. nov., holotype, non-ovigerous female: a—mandible; b—palp of mandible; c—maxillula; d—same, distal margin of upper lacinia; e—maxilla; f—maxilliped I; g—maxilliped II; h—maxilliped III.
FIGURE 4. Alpheus ikedosoma n in A new species of the snapping shrimp genus Alpheus (Crustacea: Decapoda: Caridea: Alpheidae) from Japan, associated with the innkeeper worm Ikedosoma elegans (Annelida: Echiura: Echiuridae)
FIGURE 4. Alpheus ikedosoma n. sp., holotype, male (cl 8.8 mm), CBM-ZC 13128. A, left major cheliped (first pereopod), ischium to carpus, lateral view; B, same, mesial view; C, same pereopod, chela, dorsal (outer) view; D, same, mesial (upper) view; E, same, lateral (lower) view; F, right minor cheliped, lateral view; G, same, mesial view; H, same pereopod, chela, upper view; I, same, lower view. Scale bars: 2 mm.
FIGURE 3. Alpheus ikedosoma n in A new species of the snapping shrimp genus Alpheus (Crustacea: Decapoda: Caridea: Alpheidae) from Japan, associated with the innkeeper worm Ikedosoma elegans (Annelida: Echiura: Echiuridae)
FIGURE 3. Alpheus ikedosoma n. sp., holotype, male (cl 8.8 mm), CBM-ZC 13128, left thoracic appendages. A, third maxilliped, lateral view; B, same, coxa, exopod and antepenultimate segment of endopod, ventral view (setae omitted); C, same, penultimate segment (= carpus), ventral view; D, second pereopod, lateral view; E, third pereopod, lateral view; F, same, ischium, ventral view; G, same, propodus and dactylus, lateral view; H, same, distal part of propodus and dactylus, flexor view; I, fourth pereopod, lateral view; J, same, ischium, ventral view; K, fifth pereopod, lateral view. Scale bars: 1 mm for A–F, I–K; 0.5 mm for G, H.
FIGURE 1. Alpheus ikedosoma n in A new species of the snapping shrimp genus Alpheus (Crustacea: Decapoda: Caridea: Alpheidae) from Japan, associated with the innkeeper worm Ikedosoma elegans (Annelida: Echiura: Echiuridae)
FIGURE 1. Alpheus ikedosoma n. sp. A, holotype, male (cl 8.8 mm), CBM-ZC 13128; B, allotype, female (cl 11.1 mm), spouse of male holotype, CBM-ZC 13129.
FIGURE 6 in A new species of the snapping shrimp genus Alpheus (Crustacea: Decapoda: Caridea: Alpheidae) from Japan, associated with the innkeeper worm Ikedosoma elegans (Annelida: Echiura: Echiuridae)
FIGURE 6. Host innkeeper worm of Alpheus ikedosoma n. sp. A, Ikedosoma elegans (Ikeda, 1904), CBM-ZW, Hojo Beach, Tateyama, Chiba Prefecture, Japan, 30 July 2015, scale circle: 33 mm; B, unidentified specimen, not preserved, Hondo flat, Amakusa, Kumamto Prefecture, 11 May 2013.
FIGURE 2. Alpheus ikedosoma n in A new species of the snapping shrimp genus Alpheus (Crustacea: Decapoda: Caridea: Alpheidae) from Japan, associated with the innkeeper worm Ikedosoma elegans (Annelida: Echiura: Echiuridae)
FIGURE 2. Alpheus ikedosoma n. sp., holotype, male (cl 8.8 mm), CBM-ZC 13128. A, carapace and cephalic appendages, lateral view; B, anterior part of carapace and left antennular and antennal peduncle, lateral view; C, close up of rostrum and left eye, lateral view; D, anterior part of carapace, and antennular and antennal peduncles, dorsal view (marginal setae on left antennal scale omitted); E, posterior margin of carapace, lateral view; F, telson, dorsal view (setae omitted); G, left antennal scale, dorsal view (setae omitted); H, appendices internal and masculina on left second pleopod, dorsal view; I, right uropod, dorsal view (perpendicular) (marginal setae on rami omitted). Scale bars: 2 mm for A; 1 mm for B, D–G, I; 0.5 mm for C, H.
FIGURE 5. Alpheus ikedosoma n in A new species of the snapping shrimp genus Alpheus (Crustacea: Decapoda: Caridea: Alpheidae) from Japan, associated with the innkeeper worm Ikedosoma elegans (Annelida: Echiura: Echiuridae)
FIGURE 5. Alpheus ikedosoma n. sp., paratype, ovigerous female (cl 12.2 mm), CBM-ZC 13135. A, left major cheliped, ischium and merus, mesial view; B, same pereopod, chela, lateral view; C, right minor cheliped, mesial view; D, same pereopod, chela, mesial view. Scale bars: 2 mm.
FIGURE 1 in The first record of an association between a pontoniine shrimp (Crustacea: Decapoda: Palaemonidae: Pontoniinae) and a thalassematid spoon worm (Echiura: Thalassematidae), with the description of a new shrimp species
FIGURE 1. Eupontonia nudirostris sp. nov., holotype, non-ovigerous female, general view.
Fig. 1 in Ephemeral Occurrence of the Echiuran Listriolobus brevirostris (Annelida: Echiura) in Osaka Bay between 1995 and 2002; a New Record for Japan, Probably Resulting from Human-mediated Introduction
Fig. 1. Photograph of a living individual of Listriolobus brevirostris, dredged on 18 August 1999 in the northern end of Osaka Bay, Japan (NSMT-Ec 165). Scale bar: 1 cm.
Fig. 6 in Ephemeral Occurrence of the Echiuran Listriolobus brevirostris (Annelida: Echiura) in Osaka Bay between 1995 and 2002; a New Record for Japan, Probably Resulting from Human-mediated Introduction
Fig. 6. Annual fluctuations in minimal dissolved oxygen content (mg/L) of the bottom water layer in the most oxygen-depleted (eastern) portion of Osaka Bay. Solid line indicates data from area formerly inhabited by Listriolobus brevirostris (northeastern Osaka Bay); dashed line indicates data from area devoid of L. brevirostris (remaining eastern portion of Osaka Bay).
Fig. 2 in Ephemeral Occurrence of the Echiuran Listriolobus brevirostris (Annelida: Echiura) in Osaka Bay between 1995 and 2002; a New Record for Japan, Probably Resulting from Human-mediated Introduction
Fig. 2. Map showing the only known localities of Listriolobus brevirostris, each with earliest recorded year(s) of occurrence (see text).
Figure 4 in Checklist of the phyla Platyhelminthes, Xenacoelomorpha, Nematoda, Acanthocephala, Myxozoa, Tardigrada, Cephalorhyncha, Nemertea, Echiura, Brachiopoda, Phoronida, Chaetognatha, and Chordata (Tunicata, Cephalochordata,
Figure 4. The distribution of the number of free-living flatworm (class: Rhabditophora) and Xenacoelomorpha species (A) and Tunicata (B) species along the coasts of Turkey. Each grid has a dimension of 15 × 15 km.
Figure 3. A in Checklist of the phyla Platyhelminthes, Xenacoelomorpha, Nematoda, Acanthocephala, Myxozoa, Tardigrada, Cephalorhyncha, Nemertea, Echiura, Brachiopoda, Phoronida, Chaetognatha, and Chordata (Tunicata, Cephalochordata,
Figure 3. A) Planocera cf. graffi at station 3, B) Prostheceraeus vittatus at station 3, C) Tubulanus superbus at station 1, D) Phoronis australis at station 2, E) Ciona roulei at station 3, F) Polyclinella azemai at station 3 (photographed by ME Çınar).
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