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41 results for “Melanophryniscus”
FIGURE 6 in The taxonomic status of Melanophryniscus orejasmirandai Prigioni & Langone, 1987 " 1986 " (Anura: Bufonidae)
FIGURE 6. Geographic distribution of Melanophryniscus pachyrhynus. Open circle: type locality of M. orejasmirandai; white circle: type locality of M. pachyrhynus. Localities are numbered as in Appendix I. Localities: (1) Cerro de las Ánimas; (2) Abra de Castellanos; (3) Cerro Cotto; (4) Cuchilla de Mangrullo; (5) 17.5 km N from Arroio Grande; (6) Piratini, (7) São Lourenço do Sul, (8) Caçapava do Sul, (9) Dom Feliciano, (10) 22 km S from Encruzilhada do Sul; (11) São Jerônimo, Fazenda Novosares, (12) Belém Velho, Sítio do Mato, (13) Viamão, Parque Saint-Hilaire; (14) Porto Alegre. (15) São Sepé. Localities from which DNA sequences were studied are indicated in red.
FIGURE 1 in The tadpole of the red-bellied toad, Melanophryniscus dorsalis (Mertens, 1933) (Anura: Bufonidae)
FIGURE 1. Tadpole of Melanophryniscus dorsalis, MCN 14349, Stage 31. (A) coloration in life, (B) lateral view, (C) dorsal view with detail of the position of pineal end–organ (arrow), (D) oral disc (ventral view), (E) labial teeth observed with scanning electron microscope.
FIGURE 3 in Notes on the acoustic repertoire of Melanophryniscus klappenbachi Prigioni & Langone, 2000
FIGURE 3. Distress call of M. klappenbachi. Oscillogram illustrating the temporal structure (A), as well as oscillograms and spectrograms of two notes (B, C).
FIGURE 2 in Notes on the acoustic repertoire of Melanophryniscus klappenbachi Prigioni & Langone, 2000
FIGURE 2. Advertisement call of M. klappenbachi. Oscillogram and spectrogram of a typical advertisement call (A) as well as of an advertisement call composed of two different call types (B), which, however, was only rarely observed.
FIGURE 1 in Notes on the acoustic repertoire of Melanophryniscus klappenbachi Prigioni & Langone, 2000
FIGURE 1. Melanophryniscus klappenbachi; note the distinctive characters described in the text allowing a reliable identification of the species among members of the M. stelzneri group (A, B), pair in amplexus (C) and specimens in ventral view (D).
FIGURE 1 in The tadpole of Melanophryniscus atroluteus (Miranda Ribeiro, 1902) (Anura: Bufonidae) from Argentina and Uruguay
FIGURE 1. Tadpole of Melanophryniscus atroluteus, MLP DB 2375, stage 31, dorsal (A), ventral (B), and lateral views (C). Scale bar = 2 mm. D) Oral disc. Scale bar = 0.3 mm. E) Lateral view of an individual labial tooth removed from the medial region of row A1. Scale bar = 0.02 mm.
FIG. 2 in The Nuptial Pads of Melanophryniscus (Anura: Bufonidae), with the Unexpected Occurrence of Nuptial-Pad-Like Structures in Females of Two Species
FIG. 2. Scanning electron micrograph of Finger Iin the right hand of females from the studied species (A) Melanophryniscus cambaraensis and (B) M. macrogranulosus, and three other species from the genus—(C) M. montevidensis, (D) M. sanmartini, and (E) M. simplex. Scale bar: 500 µm.
FIG. 5 in The Nuptial Pads of Melanophryniscus (Anura: Bufonidae), with the Unexpected Occurrence of Nuptial-Pad-Like Structures in Females of Two Species
FIG. 5. Histochemistry of nuptial pads of Melanophryniscus macrogranulosus. (A) Male (UFRGS 6327), specialized mucous gland (SMG) positively stained with PAS + AB on the distal portion of each secretory cell. (B) Male (UFRGS 6327), SMG positively stained with AB. (C) Males (UFRGS 6586) present keratin ornamentation on top of papillae (white arrows). Gland ducts (d) open between papillae. Section stained with hematoxylin and eosin; SMG granules positively stained with eosin. (D) Detail of a SMG in male (UFRGS 6448), showing duct (d), formed by a thin layer of keratinized cells that cross the epidermis and opening between papillae; intermediate region (black arrow) and the secretory cells, filled with granules that positively stained with fuchsine but not with toluidine blue. Scale bars: (A,B) 100 µm; (C,D) 50 µm.
FIG. 1. Finger II in The Nuptial Pads of Melanophryniscus (Anura: Bufonidae), with the Unexpected Occurrence of Nuptial-Pad-Like Structures in Females of Two Species
FIG. 1. Finger II of Melanophryniscus males. (A) M. montevidensis, (B) M. sanmartini, (C) M. simplex, (D) M. cambaraensis, and (E) M. macrogranulosus. Finger II of Melanophryniscus females (F) M. cambaraensis, and (G) M. macrogranulosus. Scale bar: 500 µm.
FIG. 3 in The Nuptial Pads of Melanophryniscus (Anura: Bufonidae), with the Unexpected Occurrence of Nuptial-Pad-Like Structures in Females of Two Species
FIG. 3. Scanning electron microscopy of the epidermal projections on the first finger of (A) male and (B) female of Melanophryniscus cambaraensis, and of (C) male and (D) female of M. macrogranulosus. Scale bar: 50 µm.
FIG. 4 in The Nuptial Pads of Melanophryniscus (Anura: Bufonidae), with the Unexpected Occurrence of Nuptial-Pad-Like Structures in Females of Two Species
FIG. 4. Cross sections of Melanophryniscus cambaraensis male (MCN13477; [A,C]) and female (UFRGS6327; [B,D]) thumbs. Magnifications of selected areas show the presence of sexually dimorphic skin glands (black arrows) in males (C), and the presence of ordinary mucous (OMG) and ordinary serous glands (OSG) in females. D, dermis; E, epidermis; black arrow head, papillary epidermal projections; white arrow, stratum corneum. Scale bars: 100 µm.
FIGURE 1 in The tadpole of Melanophryniscus cambaraensis Braun & Braun, 1979 (Anura: Bufonidae)
FIGURE 1. Tadpole of Melanophryniscus cambaraensis at Gosner stage 37, showing lateral (A) and dorsal views (B, scale line = 10 mm), and the oral disc (C, scale bar = 1 mm).
Data from: Notes on the acoustic repertoire of Melanophryniscus klappenbachi Prigioni & Langone, 2000
The genus Melanophryniscus Gallardo, 1961 currently comprises 25 recognized species (Frost 2012) arranged in three (Cruz & Caramaschi 2003) to four species groups (Cespedez & Motte 2001, quoted by Maneyro et al. 2008) on the basis of morphological characters. The Melanophryniscus stelzneri species group currently contains nine species, i.e. M. atroluteus (Miranda-Ribeiro, 1920), M. cupreuscapularis Céspedez & Alvarez, 2000, M. dorsalis (Mertens, 1933), M. fulvoguttatus (Mertens, 1937), M. klappenbachi Prigioni & Langone, 2000, M. krauczuki Baldo & Basso, 2004, M. montevidensis (Philippi, 1902), M. rubriventris (Vellard, 1947), and M. stelzneri (Weyenbergh, 1875). So far, advertisement calls of only four of these species have been described, i.e. those of M. atroluteus, M. dorsalis, M. krauczuki, and M. montevidensis (Kwet et al. 2005, Baldo & Basso 2004). Herein, we describe the courtship call and distress call of M. klappenbachi and compare it with the calls of other members of the group.
Figures 4-6 from: Mângia S, Santana DJ, Mariotto LR (2019) The advertisement call of the phytotelm-breeding Melanophryniscus xanthostomus (Anura: Bufonidae). Zoologia 36: 1-7. https://doi.org/10.3897/zoologia.36.e25662
Figures 4-6 Advertisement call of Melanophryniscusxanthostomus (LM380, SLV 18.6 mm): (4) oscillogram and spectogram of one call; (5) oscillogram and spectogram of three notes from the first segment; (6) oscillogram and spectogram of 28 pulses from the second segment.
Figures 1-3 from: Mângia S, Santana DJ, Mariotto LR (2019) The advertisement call of the phytotelm-breeding Melanophryniscus xanthostomus (Anura: Bufonidae). Zoologia 36: 1-7. https://doi.org/10.3897/zoologia.36.e25662
Figures 1-3 Specimens of Melanophryniscusxanthostomus: dorsal view (1) and ventral view (2) from FURB 22851 specimen and FURB 22713 specimen in life (3).
Figs. 1-2 in Nova espécie de Melanophryniscus Gallardo, 1961 do Estado do Rio Grande do do Sul , (Anura , Bufonidae)
Figs. 1-2: Melanophyniscus cambaraensis sp. n. holótipo macho - MCN 979 7: 1. vista dorsal; 2. vista ventral.
Data from: Notes on the acoustic repertoire of Melanophryniscus klappenbachi Prigioni & Langone, 2000
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Figura N in NOVA ESPÉCIE DO GÊNERO Melanophryniscus GALLARDO, 1961 DO ESTADO DO RIO GRANDE DO SUL, BRASIL (ANURA, BRACHYCEPHALIDAE).
Figura N.° 4 — Vista da palma da mão do Holótipo
Figura N in NOVA ESPÉCIE DO GÊNERO Melanophryniscus GALLARDO, 1961 DO ESTADO DO RIO GRANDE DO SUL, BRASIL (ANURA, BRACHYCEPHALIDAE).
Figura N.° 2 — Vista ventral do Holótipo
ventral in NOVA ESPÉCIE DO GÊNERO Melanophryniscus GALLARDO, 1961 DO ESTADO DO RIO GRANDE DO SUL, BRASIL (ANURA, BRACHYCEPHALIDAE).
ventral
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