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18 results for “Muraena”
Figure 7 in Sex ratio, oocyte development and spawning season of Mediterranean moray eel (Muraena helena) from the northern coast of Tunisia
Figure 7. – Section of gonad, illustrating the spawning capable reproductive phase of ovary (CA = cortical alveolar oocyte; Vtg3 = tertiary vitellogenic oocyte).
Figure 5 in Sex ratio, oocyte development and spawning season of Mediterranean moray eel (Muraena helena) from the northern coast of Tunisia
Figure 5. – Section of gonad, illustrating the immature phase of ovary (PG = primary growth oocyte; OW = ovarian wall).
Figure 2 in Sex ratio, oocyte development and spawning season of Mediterranean moray eel (Muraena helena) from the northern coast of Tunisia
Figure 2. Seasonal variation of the gonadosomatic index (GSI), hepatosomatic index (HSI) and relative condition factor (CF) of Muraena helena from the northern coast of Tunisia. Bars are mean values (± 2 standard errors).
Figure 2 in Age and growth of Muraena helena (Muraenidae) from the north coast of Tunisia
Figure 2. - Length-frequency distribution of females, males and combined sexes for the Muraena helena sampled from the north coast of Tunisia.
Figure 1 in Age and growth of Muraena helena (Muraenidae) from the north coast of Tunisia
Figure 1. - Map of the study area, indicating the three sampling locations (✶) (North coast of Tunisia, central Mediterranean).
Figure 4 in Age and growth of Muraena helena (Muraenidae) from the north coast of Tunisia
Figure 4. - Seasonal mean marginal increment observed from sagittae sections of ages 2 to 10 Muraena helena specimens.
Fig. 7. Muraena argus, USNM 318316, 250 in Revisions of Anatomical Descriptions of the Pharyngeal Jaw Apparatus in Moray Eels of the Family Muraenidae (Teleostei: Anguilliformes)
Fig. 7. Muraena argus, USNM 318316, 250 mm. Left lateral view, gill arches in situ. (A) Entire gill arches exposed, sternohyoideus intact. (B) Close up of A. (C) First three arches and sternohyoideus removed, pharyngocleithralis exposed. Note absence of well-defined muscle bundle from anterior tip of LPT to hyoid and presence of fan-like subpharyngealis (Sph). Aa, anguloarticular; AD, adductor dorsalis; Cb, ceratobranchial; Ch, anterior and posterior ceratohyal; Cl, cleithrum; De, dentary; DP, dorsal process of UPT; Eb, epibranchial; Ep, epaxialis; LI, levator internus; LPT, lower pharyngeal toothplate; Mx, maxilla; Pcl, pharyngocleithralis; Sh, sternohyoideus; SO/DR, sphincter oesophagi/dorsal retractor; Sph, subpharyngealis; UPT, upper pharyngeal toothplate. Red star marks origin of LI1 within epaxialis.
Fig. 6. Muraena retifera, ANSP 103574, 165 in Revisions of Anatomical Descriptions of the Pharyngeal Jaw Apparatus in Moray Eels of the Family Muraenidae (Teleostei: Anguilliformes)
Fig. 6. Muraena retifera, ANSP 103574, 165 mm. Left lateral view of tendinous attachment of DR to vertebral column (covered by epaxialis) as it exits SO. Cb, ceratobranchial; DR, dorsal retractor; Eb, epibranchial; Ep, epaxialis; SO, sphincter oesophagi.
Fig. 5. Muraena lentiginosa, USNM 318298, 290 in Revisions of Anatomical Descriptions of the Pharyngeal Jaw Apparatus in Moray Eels of the Family Muraenidae (Teleostei: Anguilliformes)
Fig. 5. Muraena lentiginosa, USNM 318298, 290 mm. (A) Dorsal view of fourth gill arches and associated musculature, removed from body, SO/DR intact, showing anterior extension of DR to insert on UPT. (B) Ventral view of A showing insertion of VR on LPT, pharyngocleithralis removed. Cb, ceratobranchial; DR, dorsal retractor; Eb, epibranchial; LI, levator internus; LPT, lower pharyngeal toothplate; SO/DR, sphincter oesophagi/dorsal retractor; UPT, upper pharyngeal toothplate; VR, ventral retractor.
Fig. 4. Muraena lentiginosa, USNM 318298, 210 in Revisions of Anatomical Descriptions of the Pharyngeal Jaw Apparatus in Moray Eels of the Family Muraenidae (Teleostei: Anguilliformes)
Fig. 4. Muraena lentiginosa, USNM 318298, 210 mm. (A) Left lateral view of left fourth gill arch and associated musculature, removed from body, circular fibers of SO removed to expose longitudinal fibers of DR; anterior section of LI2 occluded by posterior section. (B) Medial view of A; posterior section of LI2 exposed dorsal and ventral to anterior section. AD, adductor dorsalis; Cb, ceratobranchial; DP, dorsal process of UPT; DR, dorsal retractor; Eb, epibranchial; LI, levator internus; LPT, lower pharyngeal toothplate; UPT, upper pharyngeal toothplate.
Fig. 3. Muraena lentiginosa, USNM 318298, 290 in Revisions of Anatomical Descriptions of the Pharyngeal Jaw Apparatus in Moray Eels of the Family Muraenidae (Teleostei: Anguilliformes)
Fig. 3. Muraena lentiginosa, USNM 318298, 290 mm. (A) Slightly oblique left lateral view of fourth gill arch (first three removed) and associated musculature removed from body, sphincter oesophagi (SO/DR) intact; note two branches of LI2 and their insertion points on UPT. (B, C) Dorsal views of anterior ends of fourth epibranchials (C, close up of right side) deflected laterally to show that DR does not insert on them, but instead on UPT. AD, adductor dorsalis; Cb, ceratobranchial; DP dorsal process of UPT; DR, dorsal retractor; Eb, epibranchial; LI, levator internus; LPT, lower pharyngeal toothplate; Pcl, pharyngocleithralis; SO/DR, sphincter oesophagi/dorsal retractor; UPT, upper pharyngeal toothplate. (Subpharyngealis not shown.)
Figure 8 in Sex ratio, oocyte development and spawning season of Mediterranean moray eel (Muraena helena) from the northern coast of Tunisia
Figure 8. – Section of gonad, illustrating the actively spawning subphase of ovary with A) a postovulatory follicle (POF) and B) cortical alveolar oocytes (CA) and mature oocytes in early germinal vesicle migration (indicated by asterisk), late germinal vesical migration (GVM) and germinal vesicle breakdown (GVBD).
Figure 6 in Sex ratio, oocyte development and spawning season of Mediterranean moray eel (Muraena helena) from the northern coast of Tunisia
Figure 6. – Section of gonad, illustrating the developing reproductive phase of ovary (PG = primary growth oocyte; CA = cortical alveolar oocyte; Vtg1 = primary vitellogenic oocyte; Vtg2 = secondary vitellogenic oocyte).
Figure 4 in Sex ratio, oocyte development and spawning season of Mediterranean moray eel (Muraena helena) from the northern coast of Tunisia
Figure 4. – Section of gonad, illustrating the spawning capable reproductive phase of testis (Sg2 = secondary spermatogonia; Sc1 = primary spermatocyte; Sc2 = secondary spermatocyte; St = spermatid; Sz = spermatozoa).
Figure 3 in Sex ratio, oocyte development and spawning season of Mediterranean moray eel (Muraena helena) from the northern coast of Tunisia
Figure 3. – Section of gonad, illustrating the early developing subphase of testis (Sg2 = secondary spermatogonia; Sc1 = primary spermatocyte; Sc2 = secondary spermatocyte).
Figure 3 in Age and growth of Muraena helena (Muraenidae) from the north coast of Tunisia
Figure 3. - Transverse section of an otolith (sagitta), observed under a binocular microscope with transmitted light. Mureana helena from the north coast of Tunisia (TL = 62.3 cm, W = 442.73 g). Black spots indicate the opaque bands.
Figure 5 in Age and growth of Muraena helena (Muraenidae) from the north coast of Tunisia
Figure 5. - Relationship between age and total length of Muraena helena (n = 221) sampled from north coast of Tunisia.
Figure 1 in Sex ratio, oocyte development and spawning season of Mediterranean moray eel (Muraena helena) from the northern coast of Tunisia
Figure 1. – Muraena helena sampling area.
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