Figure 1
Cetopsorhamdia clathrata, MCP 36064, 50.8 mm SL, holotype; Brazil, Rondônia State, Vilhena: Igarapé Piracolina, Rio Madeira basin, at Chapada dos Parecis.
Figure 2
Cetopsorhamdia clathrata, UFRO-I 10979, 53.9 mm SL, paratype (right after collection); Brazil, Rondônia State, Vilhena: unnamed igarapé affluent of Rio Ji-Paraná (or Machado), Rio Madeira drainage, near Vilhena, towards Porto Velho, at Chapada dos Parecis. Photograph by W.M. Ohara.
Figure 3
Developmental series of Cetopsorhamdia clathrata, lateral view, paratypes, showing ontogenetic color pattern changes; Brazil, Rondônia State, Vilhena: Igarapé Piracolina, Rio Madeira basin: MCP 36063, (A) 21.5 mm SL, (B) 22.1 mm SL, (C) 22.4 mm SL, (D) 27.8 mm SL; and MNRJ 35877, (E) 40.9 mm SL.
Figure 4
Developmental series of Cetopsorhamdia clathrata, dorsal view, paratypes, showing ontogenetic color pattern changes; Brazil, Rondônia State, Vilhena: Igarapé Piracolina, Rio Madeira basin: MCP 36063, (A) 21.5 mm SL, (B) 22.1 mm SL, (C) 22.4 mm SL, (D) 27.8 mm SL; and MNRJ 35877, (E) 40.9 mm SL.
Figure 5
Anterior portion of the body of Cetopsorhamdia clathrata, ANSP 188921, 55.0 mm SL, paratype, showing laterosensory canal system. (A) left lateral view; (B) dorsal view; (C) ventral view. Scale bar = 4 mm.
Figure 6
Neuroranium and associated structures of Cetopsorhamdia clathrata, MCP 36064, 50.8 mm SL, holotype (CT reconstructions). (A) left lateral view; (B) dorsal view; (C) ventral view. Cartilage not represented. Scale bars = 2 mm.
Figure 7
Hyoid arches of Cetopsorhamdia clathrata, MCP 36064, 50.8 mm SL, holotype (CT reconstruction). Ventral view. Cartilage not represented. Scale bar = 2 mm.
Figure 8
Branchial arches of Cetopsorhamdia clathrata, MCP 36064, 50.8 mm SL, holotype (CT reconstruction). Dorsal view. Dorsal elements of left arches not shown. Cartilage not represented. Scale bar = 2 mm.
Figure 9
Left pectoral fin of Cetopsorhamdia clathrata, UFRO-I 10979, 53.9 mm SL, paratype (radiograph). Dorsal view. Scale bar = 3 mm.
Figure 10
Drainage map of central western Brazil showing the localities of Cetopsorhamdia clathrata (white circle) and C. spilopleura (white squares). “T” indicates type-locality, each symbol may represent more than one lot or locality.
Figure 11
Igarapé Piracolina, Rio Madeira basin, at Chapada dos Parecis (12°24′36.6″S, 59°58′31.5″W), Brazil, Rondônia State, Vilhena, near to type locality of Cetopsorhamdia clathrata. Photograph by W.M. Ohara.
Figure 12
Cetopsorhamdia spilopleura, MZUSP 121503, 47.9 mm SL, holotype; Brazil, Mato Grosso State, Comodoro: unnamed stream affluent of Rio Doze de Outubro, Rio Tapajós basin.
Figure 13
Cetopsorhamdia spilopleura, MZUSP 121503, 47.9 mm SL, holotype (right after collection); Brazil, Mato Grosso State, Comodoro: unnamed stream affluent of Rio Doze de Outubro, Rio Tapajós basin. Image was flipped for comparative purposes. Photograph by W.M. Ohara.
Figure 14
Cetopsorhamdia spilopleura, juvenile, MCP 41057, 30.5 mm SL, paratype; Brazil, Mato Grosso State, Comodoro: Rio Doze de Outubro, Rio Tapajós basin.
Figure 15
Anterior portion of the body of Cetopsorhamdia spilopleura, MCP 41057, 30.5 mm SL, paratype, showing laterosensory canal system. (A) letf lateral view; (B) dorsal view; (C) ventral view. Scale bar = 3 mm.
Figure 16
Neuroranium and associated structures of Cetopsorhamdia spilopleura, MZUSP 121503, 47.9 mm SL, holotype (CT reconstructions). (A) letf lateral view; (B) dorsal view; (C) ventral view. Cartilage not represented. Scale bars = 2 mm.
Figure 17
Hyoid arches of Cetopsorhamdia spilopleura, MZUSP 121503, 47.9 mm SL, holotype (CT reconstruction). Ventral view. Cartilage not represented. Scale bar = 2 mm.
Figure 18
Branchial arches of Cetopsorhamdia spilopleura, MZUSP 121503, 47.9 mm SL, holotype (CT reconstruction). Dorsal view. Dorsal elements of left arches not shown. Cartilage not represented. Scale bar = 2 mm.
Figure 19
Left pectoral fin of Cetopsorhamdia spilopleura, MZUSP 118307, 58.9 mm SL, paratype (radiograph). Dorsal view. Scale bar = 3 mm.
Figure 20
Unnamed stream affluent of Rio Doze de Outubro, Rio Tapajós basin, about 25 km from Vilhena, on highway BR-174, at Chapada dos Parecis (12°57′50″S, 60°01′40″W), Comodoro, Mato Grosso State, Brazil, type locality of Cetopsorhamdia spilopleura. Photograph by W.M. Ohara.
Figure 21
Left suspensorium and opercular series of Cetopsorhamdia clathrata, MCP 36064, 50.8 mm SL, holotype (CT reconstructions). (A) lateral view; (B) medial view. Cartilage not represented. Arrow points to the anterior process of the hyomandibula. Scale bars = 1 mm.
Figure 22
Left suspensorium and opercular series of Cetopsorhamdia spilopleura, MZUSP 121503, 47.9 mm SL, holotype (CT reconstructions). (A) lateral view; (B) medial view. Cartilage not represented. Arrow points to the anterior process of the hyomandibula. Scale bars = 1 mm.
Figure 23
Left pectoral fin of: (A) Cetopsorhamdia iheringi, LIRP 2805, 53.9 mm SL (radiograph); (B) Cetopsorhamdia insidiosa, NMW 46095:1 (syntype of Imparfinis insidiosus), 76.8 mm SL (radiograph). Dorsal view. Scale bars = 3 mm.
Table 1
Morphometric features of Cetopsorhamdia clathrata, taken from the holotype MCP 36064, and the paratypes in ANSP 188921, LIRP 10032, MCP 36063, MNRJ 35877, UFRO-I 10968, UFRO-I 10979, UFRO-I 22921, and UFRO-I 23004. Morphometric data 1-34 are expressed as percent of Standard Length and 35-45 as percent of Head Length. Abbreviations: H = holotype; Min = minimum value; Max = maximum value; N = number of specimens; SD = standard deviation.
Table 2
Morphometric features of Cetopsorhamdia spilopleura, taken from the holotype MZUSP 121503, and the paratypes in LIRP 13992, MCP 35993, MCP 41057, MZUSP 115498, and MZUSP 118307. Morphometric data 1-34 are expressed as percent of Standard Length and 35-45 as percent of Head Length. Abbreviations: H = holotype; Min = minimum value; Max = maximum value; N = number of specimens; SD = standard deviation.
CT-Scan information for Cetopsorhamdia species.
Abbreviations: CNC = computer numerical control; FDD = focus-detector distance; and FOD = focus-object distance.