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15 results for “Euchone”
Figure 9 in The genus Euchone (Polychaeta, Sabellidae) in the Mediterranean Sea, addition of two new species and discussion on some closely related taxa
Figure 9. Chone sp. SEM analysis. (A) Notochaetae from the second chaetiger; (B, C) thoracic uncini from the second chaetiger; (D) abdominal uncini from the third abdominal chaetiger.
Figure 8 in The genus Euchone (Polychaeta, Sabellidae) in the Mediterranean Sea, addition of two new species and discussion on some closely related taxa
Figure 8. Chone sp. (A) Entire worm; (B) lateral view of the anterior end; (C) dorsal view of the anterior end; (D) detail of the internal crown structures; (E) radioles showing the development of palmate membrane; (F) thoracic uncinus; (G) abdominal uncini, first chaetigers on the left, last chaetigers on the right; (H) superior thoracic notochaetae; (I) inferior paleate thoracic notochaetae. dl, dorsal lip.
Figure 6 in The genus Euchone (Polychaeta, Sabellidae) in the Mediterranean Sea, addition of two new species and discussion on some closely related taxa
Figure 6. Euchone (Chiade) sp. (A) Entire worm, dorsal view; (B) entire worm, ventral view; (C) entire worm, lateral view; (D) collar, ventral view; (E) collar, dorsal view; (F) anal depression, dorsal view; (G) anal depression, ventral view; (H) thoracic superior notochaeta and thoracic inferior paleate chaeta; (I) thoracic uncinus; (L) abdominal uncinus from an anterior abdominal chaetiger; (M) abdominal uncinus from chaetigers of the anal depression.
Figure 5 in The genus Euchone (Polychaeta, Sabellidae) in the Mediterranean Sea, addition of two new species and discussion on some closely related taxa
Figure 5. (A–D, F–H) Euchone rosea: (A) staining pattern of the anterior end, ventral view; (B) ventral view of the anterior end; (C) lateral and ventral views of the anal depression; (D) thoracic uncinus; (F) thoracic inferior paleate chaeta; (G) abdominal uncinus from the anterior abdominal chaetiger chaetiger; (H) abdominal uncinus from the anal depression region. (E) Euchone rubrocincta: thoracic inferior notochaeta.
Figure 4 in The genus Euchone (Polychaeta, Sabellidae) in the Mediterranean Sea, addition of two new species and discussion on some closely related taxa
Figure 4. Euchone sp. (A) Entire worm without crown; (B) staining pattern of the anterior end, ventral view; (C) collar, dorsal view; (D) lateral view of the anal depression; (E) thoracic superior notochaeta and thoracic inferior paleate chaeta; (F) abdominal uncinus from an anterior abdominal chaetiger; (G) abdominal uncinus from chaetigers of the anal depression.
Figure 2. Euchone pararosea n in The genus Euchone (Polychaeta, Sabellidae) in the Mediterranean Sea, addition of two new species and discussion on some closely related taxa
Figure 2. Euchone pararosea n. sp. (A) Staining pattern of the anterior end, ventral view; (B) entire worm; (C) detail of radioles showing the palmate membrane and radiolar tip; (D) collar, dorsal view; (E) frontal view of the anal depression showing lateral wings; (F) lateral view of the anal depression; (G) internal structure of branchial crown after dissection; (H) thoracic uncinus; (I) thoracic superior notochaeta; (L) thoracic inferior paleate chaeta; (M) abdominal uncinus, profile view of anterior abdominal chaetiger; (N) abdominal uncinus from chaetigers of the anal depression. dl, dorsal lip; vl, ventral lip; vpa, ventral pinnular appendage.
Figure 7 in The genus Euchone (Polychaeta, Sabellidae) in the Mediterranean Sea, addition of two new species and discussion on some closely related taxa
Figure 7. Comparison of thoracic uncini structure in some related sabellin genera having long handle. (A) Type 1 (from Chone duneri); (B) type 2 (from Chone sp.); (C) type 3 (from Chone americana); (D) type 4 (from Amphicorina armandi); (E) scheme of handle orientation found in uncini of types 1–3; (F) scheme of handle orientation found in uncini of types 2–4; (G) SEM photograph of uncini type 1; (H) SEM photograph of uncini type 2.
Figure 10 in The genus Euchone (Polychaeta, Sabellidae) in the Mediterranean Sea, addition of two new species and discussion on some closely related taxa
Figure 10. One of the equally parsimonious minimum length trees retained. (A) Distribution of character state 53; (B) distribution of character state 6.
Figure 3. Euchone pseudolimnicola n in The genus Euchone (Polychaeta, Sabellidae) in the Mediterranean Sea, addition of two new species and discussion on some closely related taxa
Figure 3. Euchone pseudolimnicola n. sp. (A) Staining pattern of the anterior end, ventral view; (B) entire worm; (C) collar, dorsal view; (D) staining pattern of abdominal chaetigers, ventral view; (E) ventral and lateral views of the anal depression; (F) tip of eadioles; (G) internal structure of branchial crown after dissection; (H) abdominal uncini in profile; (I) abdominal uncinus, the first abdominal chaetiger, frontal view; (L) abdominal uncinus from the anal depression region; (M) thoracic uncini; (N) thoracic superior notochaeta; (O) thoracic inferior paleate chaeta. dra, dorsal radiolar appendage; dl, dorsal lip.
Figure 1 in The genus Euchone (Polychaeta, Sabellidae) in the Mediterranean Sea, addition of two new species and discussion on some closely related taxa
Figure 1. Euchone analis. (A) Staining pattern of the anterior end, ventral view; (B) collar, dorsal view; (C) internal structure of branchial crown after dissection; (D) tip of radioles; (E) staining pattern of abdominal chaetigers, ventral view; (F) anal depression; (G) abdominal uncinus from the first abdominal chaetiger; (H) abdominal uncinus from the anal depression region. dl, dorsal lip; vl, ventral lip; dra, dorsal radiolar appendage; vra, ventral radiolar appendages.
Figure 11 in The genus Euchone (Polychaeta, Sabellidae) in the Mediterranean Sea, addition of two new species and discussion on some closely related taxa
Figure 11. Strict consensus tree.
FIGURE 1. Euchone pallida. A in A new genus of Sabellidae (Annelida, Polychaeta) from Antarctica, with discussion of relationships among plesiomorphic genera within Sabellinae
FIGURE 1. Euchone pallida. A) anterior end, dorsal view; B) staining pattern with green methyl, ventral view of the thorax and of the mid-abdomen; C) end of radiole; D) anal depression; E) internal structures of the branchial crown; F) inferior anterior thoracic chaeta; G) thoracic uncinus; H) abdominal uncinus from the middle of the abdomen; I) abdominal uncinus from the anal depression. dl=dorsal lip; dpa=dorsal pinnular appendages; dra=dorsal radiolar appendages; vl=ventral lip; vra=ventral radiolar appendages.
FIGURE 6. Euchone glennoi n in A taxonomic guide to the fanworms (Sabellidae, Annelida) of Lizard Island, Great Barrier Reef, Australia, including new species and new records
FIGURE 6. Euchone glennoi n. sp. A–C. Preserved specimens stained with methyl blue; A. Anterior thoracic chaetigers with a conspicuous first ventral shield and narrow glandular ridge on chaetiger two (arrow); B. Same, dorsal view; glandular ridge, evident (arrow); C. Posterior abdominal chaetigers and pygidium, lateral view; D. Thoracic acicular uncini; E. Posterior abdominal uncini; F. Drawing, anterior abdominal uncinus; G. Drawing, posterior abdominal uncinus; H. Euchone variabilis, posterior abdominal segments, with flanged pre-pygidial depression, and pygidium.
FIGURE 5. Euchone danieloi n in A taxonomic guide to the fanworms (Sabellidae, Annelida) of Lizard Island, Great Barrier Reef, Australia, including new species and new records
FIGURE 5. Euchone danieloi n. sp., scanning electron micrographs. A. Radiolar crown distal end, showing the basal membrane and radiolar flanges (arrows); B. Detached radiolar lobe showing ventral radiolar appendages (white arrow), and dorsal lips (black arrow). C. Opposite radiolar lobe (dorsal lip not visible); D. Anterior thoracic chaetigers, ventral view; E. Detail of ventral anterior collar margin with a small shallow midventral depression; F. Dorsal collar margins fused to faecal groove; G. Thoracic superior broadly-hooded chaetae, inferior shorter broadly-hooded (type B) and additional row of bayonet chaetae; H. Detail of bayonet chaetae; I. Thoracic uncini with five rows of similar-sized teeth over main fang, covering half its length; J. Midabdominal chaetae elongate narrowly-hooded; K. Anterior abdominal uncini with five rows of similar-sized teeth over main fang, covering half its length; L. Posterior abdominal uncini with 6–7 rows of teeth over main fang, covering most of its length; M. Pre-pygidial depression, with flanges, lateral view; N. Same, ventral view, showing the rounded flap on the anterior margin (arrow).
FIGURE 4. Euchone danieloi n in A taxonomic guide to the fanworms (Sabellidae, Annelida) of Lizard Island, Great Barrier Reef, Australia, including new species and new records
FIGURE 4. Euchone danieloi n. sp., preserved specimens. A. Holotype, lateral view; with characteristic radiolar pigmentation pattern; B. Opened radiolar crown showing six pairs of radioles and the ventral radiolar appendages (arrows); C–E. Stained specimens with methyl blue; C. Anterior end, detached radiolar crown, showing the stained ventral shields, divided transversally; D. Posterior end, dorsal view; E. Same, ventral view showing the flanged pre-pygidial depression; F. Detail of the rounded pygidium and eyespots. G. Thoracic acicular uncini; H. Anterior abdominal uncini; I. Drawing, anterior abdominal chaetigers uncinus; J. Drawing, posterior abdominal chaetigers uncinus.
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