FIGURE 1 |
Corydoras thanatos, holotype, MNRJ 53287, 33.2 mm SL, Novo Progresso Municipality, Pará State, Brazil, stream with unknown name tributary to the rio Jamanxim, rio Tapajós basin.
FIGURE 2 |
Lateral view of the head (A), lateral view of the dorsal-fin spine (B) and dorsal view of the left pectoral-fin spine (C) in cs paratype of Corydoras thanatos, CITL 383, 33.8 mm SL. Abbreviations: f: frontal, io1–2: infraorbital 1 and 2, iop: interopercle, n: nasal, op: opercle, pes: pterotic-extrascapular, pop: preopercle, prh: posterodorsal ridge of hyomandibula, pso: parieto-supraoccipital, sph: sphenotic. Scale bars = 1 mm.
FIGURE 3 |
Paratypes of Corydoras thanatos photographed alive, showing general color pattern and morphology in lateral view in (A) INPA 59776, 14.2 mm SL, (B) INPA 59778, 21.9 mm SL, (C) INPA 59777, 29.0 mm SL, (D) INPA 59777, 30.0 mm SL, and (E) INPA 59777, 33.3 mm SL, all from tributaries to the rio Jamanxim, rio Tapajós basin.
FIGURE 4 |
Uncatalogued aquarium specimens of Corydoras thanatos photographed alive, showing general color pattern and morphology of (A) a female specimen, and (B) a dimorphic male specimen. Photos by Hans Evers.
FIGURE 5 |
Map of the rio Tapajós and adjoining areas, showing the geographical distribution of Corydoras thanatos (black circle), C. hypnos (white star), and C. psamathos (red squares). Each symbol may represent more than one locality.
FIGURE 6 |
Natural habitat of Corydoras thanatos and C. hypnos, showing (A) the rio Jamanxim, type locality of C. hypnos, and one of its tributaries (B), type locality of C. thanatos, rio Tapajós basin in Pará State, Brazil.
FIGURE 7 |
Corydoras hypnos, holotype, MNRJ 53288, 31.7 mm SL, Brazil, Pará State, Novo Progresso Municipality, rio Jamanxim, a tributary to the rio Tapajós basin.
FIGURE 8 |
Lateral view of the head (A), lateral view of the dorsal-fin spine (B) and dorsal view of the left pectoral-fin spine (C) in cs paratype of Corydoras hypnos, CITL 385, 32.0 mm SL. Abbreviations: f: frontal, io1–2: infraorbital 1 and 2, iop: interopercle, n: nasal, op: opercle, pes: pterotic-extrascapular, pop: preopercle, prh: posterodorsal ridge of hyomandibula, pso: parieto-supraoccipital, sph: sphenotic. Scale bars = 1 mm.
FIGURE 9 |
Paratypes of Corydoras hypnos photographed alive, showing general color pattern and morphology in lateral view in (A) INPA 59775, 26.2 mm SL, (B) INPA 59775, 27.2 mm SL, (C) INPA 59775, 22.2 mm SL, (D) INPA 59774, 28.2 mm SL, and (E) INPA 59774, 22.6 mm SL, all from the rio Jamanxim, rio Tapajós basin, Pará State, Brazil.
FIGURE 10 |
Uncatalogued aquarium specimens of Corydoras hypnos photographed alive, showing general morphology and color pattern of (A) a specimen with brownish yellow ground color of body, and (B) and two specimens with greyish yellow ground color of body. Photos by Robert McLure (A) and Oliver Lucanus (B).
FIGURE 11 |
Corydoras psamathos, holotype, MNRJ 53289, 29.4 mm SL, Novo Progresso Municipality, Pará State, Brazil, igarapé Santa Júlia, a tributary to the rio Jamanxim, rio Tapajós basin.
FIGURE 12 |
Lateral view of the head (A), lateral view of the dorsal-fin spine (B) and dorsal view of the left pectoral-fin spine (C) in cs paratype of Corydoras psamathos, CITL 387, 28.6 mm SL. Abbreviations: f: frontal, io1–2: infraorbital 1 and 2, iop: interopercle, n: nasal, op: opercle, pes: pterotic-extrascapular, pop: preopercle, prh: posterodorsal ridge of hyomandibula, pso: parieto-supraoccipital, sph: sphenotic. Scale bars = 1 mm.
FIGURE 13 |
Paratypes of Corydoras psamathos photographed alive, showing general color pattern and morphology in lateral view in (A) INPA 59772, 23.7 mm SL, (B) INPA 59773, 30.2 mm SL, and (C) INPA 59773, 29.3 mm SL. Specimen (A) is from the rio Jamanxim, and specimens (B–C) are from the igarapé Santa Júlia, rio Tapajós basin.
FIGURE 14 |
Uncatalogued aquarium specimen of Corydoras psamathos photographed alive. Photo by Takayuki Shimizu.
FIGURE 15 |
Type locality of Corydoras psamathos, the igarapé Santa Júlia, a tributary to the rio Jamanxim, rio Tapajós basin in Pará State, Brazil.