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12 results for “Rhinoptera”
FIG. 3 in First record and DNA Barcoding of Oman cownose ray, Rhinoptera jayakari Boulenger, 1895 from Andaman Sea, India
FIG. 3. — Rhinoptera jayakari Boulenger, 1895: A, underside of the head; B, location of prickles on dorsal surface of the head; C, nine series of teeth, upper jaw; D, dorsal fin along with spine. Size of specimen: 494 mm DW.
FIG. 1 in First record and DNA Barcoding of Oman cownose ray, Rhinoptera jayakari Boulenger, 1895 from Andaman Sea, India
FIG. 1. — Junglighat Fishing Harbour (Sampling station), South Andaman.
Genetic variability and Population structure of two sympatric cownose rays Rhinoptera (Myliobatiformes, Rhinopteridae) in the Western Atlantic Ocean
<p><em><span><span>We analyzed sequences of COI and Cytb genes for Rhinoptera bonasus (COI: 230; 11 haplotypes, Cytb: 108; 12 haplotypes) and R. brasiliensis (COI: 181; 10 haplotypes, Cytb: 105; eight haplotypes ) to investigate the genetic diversity and their relationship with environmental variables, genetic structure, as well as demographic parameters. </span></span></em></p>
FIGURE 1 in Molecular evidence supporting the expansion of the geographical distribution of the Brazilian cownose ray Rhinoptera brasiliensis (Myliobatiformes: Rhinopteridae) in the western Atlantic
FIGURE 1. (A) Maximum likelihood and Bayesian inference topologies for concatenated data mtDNA (Cyt b + NADH2 + COI) (B), nuclear (RAG1), and (C) concatenated data mtDNA+ RAG1. The numbers on branches are maximum likelihood bootstrap values and posterior probabilities of Bayesian inference, respectively. Lines have been color–coded: (R. bonasus) – green; (R. brasiliensis) –blue.
FIGURE 2 in Molecular evidence supporting the expansion of the geographical distribution of the Brazilian cownose ray Rhinoptera brasiliensis (Myliobatiformes: Rhinopteridae) in the western Atlantic
FIGURE 2. Median–joining network illustrating genealogical relationships among haplotypes of concatenated mtDNA (Cyt b+NADH2+COI) (1671 bp). The size of each haplotype circle is proportional to its frequency. Small intermediate circles represent median vectors of either unsampled or extinct taxa. Numbers indicate mutational steps between haplotype (one, if not shown). Color–coded by haplotypes between geographical locations.
Figure 1 in Parasite community of the golden cownose ray Rhinoptera steindachneri Evermann and Jenkins 1891 (Chondrichthyes: Myliobatidae), in Acapulco Bay, Guerrero, Mexico
Figure 1. Multivariate discriminant analyses of Rhinoptera steindachneri samples, from Acapulco Bay, México. The grey circles, open squares and black circles represent each of the rays during each sampling month. Centroid = mean group.
Figure 2 in Parasite community of the golden cownose ray Rhinoptera steindachneri Evermann and Jenkins 1891 (Chondrichthyes: Myliobatidae), in Acapulco Bay, Guerrero, Mexico
Figure 2. Canonical correlations between the first two discriminant functions, and the parasites of Rhinoptera steindachneri, which allow establishment of differences in parasite community structure between the sampling months. Eud = Eudactylinodes keratophagus and Tyl = Tylocephalum sp. were the most important parasites in determining the position of the July 2010 sample. Pad = Parachristianella dimegacantha, characteristic of rays collected in August 2010. Den = Denarycotyle gardneri, Ser = Serendip danbrooksi and Try = Trypanorhyncha larvae defined the position of the July 2012 sample.
Figures 1–3 in Peruanocotyle Pelagica N. Sp. (Monogenea: Monocotylidae), Parasite Of The Pacific Cownose Ray Rhinoptera Steindachneri Evermann And Jenkins, 1891 (Batoidea: Rhinopteridae) From The Southern Mexican Pacific Ocean
Figures 1–3. Line drawings of Peruanocotyle pelagica n. sp. from Rhinoptera steindachneri off Oaxaca, Mexico. (1) Mounted holotype Colección Nacional de Helmintos (CNHE), Instituto de Biologıá, Universidad Nacional Autónoma de México (IB-UNAM): 11461. (2) An anchor of P. pelagica from R. steindachneri off Guerrero, Mexico. (3) A hooklet of P. pelagica from R. steindachneri off Guerrero, Mexico. Abbreviations: anchor, an; anchor-associated process, ap; dendritic structures, ds; distal ovary, do; egg, e; excretory bladder, eb; internal seminal vesicle, isv; intestine, i; marginal processes, mp; mouth, m; oötype, o; outer-ring septal papilla, opa; pharynx, p; proximal ovary, po; septal papilla, spa; seminal receptacle, sr; testis, t; vagina, v; vas efferent, ve; vitelline follicles, vf.
Figures 9, 10 in Peruanocotyle Pelagica N. Sp. (Monogenea: Monocotylidae), Parasite Of The Pacific Cownose Ray Rhinoptera Steindachneri Evermann And Jenkins, 1891 (Batoidea: Rhinopteridae) From The Southern Mexican Pacific Ocean
Figures 9, 10. Line drawings of terminal male reproductive organ (9) ejaculatory bulb. (10) Detailed end of male copulatory organ (MCO) showing interlaced extensions and spines. Abbreviations: distal ejaculatory duct, ded; male pore, mp; proximal ejaculatory duct, ped; sclerotized MCO, sMCO; internal seminal vesicle, isv; vas deferens, vd.
Figure 11 in Peruanocotyle Pelagica N. Sp. (Monogenea: Monocotylidae), Parasite Of The Pacific Cownose Ray Rhinoptera Steindachneri Evermann And Jenkins, 1891 (Batoidea: Rhinopteridae) From The Southern Mexican Pacific Ocean
Figure 11. Phylogenetic inference of Monocotylidae based on 28S locus. Subfamilies of Monocotylidae are indicated at right side. Peruanocotyle pelagica n. sp. appears in bold. Posterior probability support value is close to nodes. GenBank accession numbers appear followed by the names of species.
Figures 4–8 in Peruanocotyle Pelagica N. Sp. (Monogenea: Monocotylidae), Parasite Of The Pacific Cownose Ray Rhinoptera Steindachneri Evermann And Jenkins, 1891 (Batoidea: Rhinopteridae) From The Southern Mexican Pacific Ocean
Figures 4–8. Scanning electron mi- croscope (SEM) images of Peruanoco- tyle pelagica n. sp. from Rhinoptera steindachneri off Oaxaca, Mexico. (4) Haptor with vertical arrows showing a few septal papillae and horizontal arrows (small) showing marginal pro- cesses as well as anchor-associated processes (large). (5) Magnification of marginal structures. (6) Anterior at- tachment organ and genital pores. (7) Detailed view of papillae on anterior attachment organ. (8) Male and uter- ine pores and almost-everted sclero- tized male copulatory organ (MCO) of P. pelagica from R. steindachneri off Guerrero, Mexico. Abbreviations: an- chor-associated process, ap; dendritic structures, ds; male pore, mp; marginal process, mpr; outer-ring septal papilla, opa; sclerotized MCO, sMCO; uterine pore, up; vaginal pore, vp.
FIG. 4 in First record and DNA Barcoding of Oman cownose ray, Rhinoptera jayakari Boulenger, 1895 from Andaman Sea, India
FIG. 4. — Neighbour Joining (NJ) phylogenetic tree of Rhinoptera jayakari Boulenger, 1895 and related species inferred from mitochondrial COI gene sequences.
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International Brain Laboratory public data
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OpenNeuro
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