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16 results for “Styracura”
FIGURE 7 in A new subfamily, Styracurinae, and new genus, Styracura, for Himantura schmardae (Werner, 1904) and Himantura pacifica (Beebe & Tee-Van, 1941) (Chondrichthyes: Myliobatiformes)
FIGURE 7. Lateral aspect of pectoral girdle (A) and dorsoventral view of pelvic girdle (B) of Styracura schmardae (MZUSP uncat. 508 mm DW). Abbreviations: adf, anterodorsal fenestra; avf, anteroventral fenestra; fct, additional supporting articular facet for propterygium; ip, iliac processes; isp, ischial processes; lpp, lateral prepelvic processes; msc, mesocondyle; mtc, metacondyle; of, obturator foramina; pc, procondyle; pdf, posterodorsal fenestra; pib, puboischiadic bar; ppp, prepelvic process; pvc, pelvic condyles; pvf, posteroventral fenestra; scp, scapular process; spf, scapular process fenestra.
FIGURE 1 in A new subfamily, Styracurinae, and new genus, Styracura, for Himantura schmardae (Werner, 1904) and Himantura pacifica (Beebe & Tee-Van, 1941) (Chondrichthyes: Myliobatiformes)
FIGURE 1. Styracura schmardae (ROM 66845, juvenile female, 276 mm DW, Guyana) in dorsal (A) and ventral (B) views. Live color brown or grayish- to olivaceous-brown.
FIGURE 6 in A new subfamily, Styracurinae, and new genus, Styracura, for Himantura schmardae (Werner, 1904) and Himantura pacifica (Beebe & Tee-Van, 1941) (Chondrichthyes: Myliobatiformes)
FIGURE 6. Head skeleton of Styracura schmardae (MCZ 37964, 545 mm DW, Cuba), showing small angular elements between hyomandibula and lower jaw (remarkably similar to specimen in Fig. 5); asterisk denotes terminal portion of hyomandibula. Abbreviations: ac, angular cartilage; fpf, frontoparietal fontenelle; hyo, hyomandibula; is, internasal septum; Mc, Meckel's cartilage; na, nasal aperture; pcf, precerebral fontenelle; pq, palatoquadrate; psc, prespiracular cartilage; sp, supraorbital process.
FIGURE 5 in A new subfamily, Styracurinae, and new genus, Styracura, for Himantura schmardae (Werner, 1904) and Himantura pacifica (Beebe & Tee-Van, 1941) (Chondrichthyes: Myliobatiformes)
FIGURE 5. Head skeleton of Styracura schmardae (MZUSP uncat. 508 mm DW, Belize). Note small calcified (angular) elements between hyomandibulae and lower jaws, which are slightly variable between both sides; asterisk denotes terminal portion of hyomandibula. Abbreviations: ac, angular cartilage; aoc, antorbital cartilage; fpf, frontoparietal fontenelle; hyo, hyomandibula; Mc, Meckel's cartilage; na, nasal aperture; pcf, precerebral fontenelle; pq, palatoquadrate; prp, preorbital process; psc, prespiracular cartilage.
FIGURE 8. Phylogenetic inference obtained from a in A new subfamily, Styracurinae, and new genus, Styracura, for Himantura schmardae (Werner, 1904) and Himantura pacifica (Beebe & Tee-Van, 1941) (Chondrichthyes: Myliobatiformes)
FIGURE 8. Phylogenetic inference obtained from a Maximum Likelihood analysis of the complete protein-coding mitochondrial genome (courtesy of L. Yang and G. Naylor); arrow indicates position of Styracura.
FIGURE 4 in A new subfamily, Styracurinae, and new genus, Styracura, for Himantura schmardae (Werner, 1904) and Himantura pacifica (Beebe & Tee-Van, 1941) (Chondrichthyes: Myliobatiformes)
FIGURE 4. Ventral lateral-line canals of Styracura schmardae (MZUSP uncat. 508 mm DW). Abbreviations: HMD, hyomandibular canal (pink); IOC, infraorbital canal (blue); jug, jugular component of hyomandibular canal; NAS, nasal canal (including the prenasal canal anteriorly; yellow); pst, posterior subpleural tubules; spl, subpleural component of hyomandibular canal; SPO, supraorbital canal (green).
FIGURE 3 in A new subfamily, Styracurinae, and new genus, Styracura, for Himantura schmardae (Werner, 1904) and Himantura pacifica (Beebe & Tee-Van, 1941) (Chondrichthyes: Myliobatiformes)
FIGURE 3. SEM images of dermal denticles of Styracura schmardae (MZUSP uncat. 508 mm DW). A) Quadriradiate denticles with broad basal plates (note overlapping basal plates); B) Quadriradiate and asterisk-shaped denticles occurring sideby-side on lateral disc region; C) Large quadriradiate denticle under greater magnification; D) Enlarged view of asterisk-shaped denticle showing stellate crown ridges. Abbreviations: bp, basal plate; cp, coronal plate; cr, coronal ridges; dr; dichotomous coronal ridge.
FIGURE 2 in A new subfamily, Styracurinae, and new genus, Styracura, for Himantura schmardae (Werner, 1904) and Himantura pacifica (Beebe & Tee-Van, 1941) (Chondrichthyes: Myliobatiformes)
FIGURE 2. Styracura pacifica (ROM 66838, juvenile female, 287 mm DW, Pacific coast of Costa Rica) in dorsal (A) and ventral (B) views. Live color usually purplish-brown.
FIGURE 6 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 6. Line drawings of Rhinebothrium reydai n. sp. A. Scolex (MIUP CR1, Holotype), B. Terminal, mature proglottid in which testes are atrophied (MZUSP 7931b, Paratype), C. Cirrus-sac (MZUSP 7931p, Paratype), D. Subterminal, mature proglottid (MZUSP 7931b, Paratype).
FIGURE 8 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 8. Micrographs of transversal histological sections of Rhinebothrium reydai n. sp. (MZUSP 7933a–7933d, Paratypes). A. Section at level of testes, B. Section at level of ovary. Abbreviations: Ed. Excretory duct, O. Ovary, T. Testis, U. Uterus, Vd. Vas deferens, Vit. Vitelline follicle.
FIGURE 3 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 3. Scanning electron micrographs of Rhinebothrium tetralobatum (MZUSP 7928–7929, Vouchers). A. Scolex, B. Proximal surface of anterior loculus, C. Proximal surface near centre of bothridium, D. Distal surface near centre of bothridium, E. Distal surface of transverse septa, F. Distal surface near longitudinal septum in anterior region of bothridium, G. Proximal surface in posterior region of bothridium, H. Surface of anterior portion of strobila.
FIGURE 5 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 5. Light micrograph of the holotype of Rhinebothrium reydai n. sp. from Styracura schmardae (MIUP CR1).
FIGURE 4 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 4. Micrographs of transverse histological sections of Rhinebothrium tetralobatum (MZUSP 7930a–7930c, Vouchers). A. Section at level of testes, B. Section at level of ovary. Abbreviations: Ed. Excretory duct, O. Ovary, T. Testis, U. Uterus, Vd. Vas deferens, Vit. Vitelline follicle.
FIGURE 2 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 2. Line drawings of Rhinebothrium tetralobatum. A. Scolex (HWML 110067, Voucher), B. Cirrus-sac, C. Subterminal, mature proglottid, D. Terminal, mature proglottid in which testes are atrophied (HWML 110071, Voucher).
FIGURE 7 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 7. Scanning electron micrographs of Rhinebothrium reydai n. sp. (MZUSP 7932, Paratype). A. Scolex, B. Proximal surface of anterior loculus, C. Proximal surface near centre of bothridium, D. Distal surface near centre of bothridium, E. Distal surface of transverse septa, F. Distal surface near longitudinal septum in anterior region of bothridium, G. Proximal surface in posterior region of bothridium, H. Surface of anterior portion of strobila.
FIGURE 1 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 1. Light micrograph of voucher specimens of Rhinebothrium tetralobatum from Styracura schmardae (LRP 9255).
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