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Figure 3 in The rediscovery of Pimelodella longipinnis (Borodin, 1927), an enigmatic Atlantic Rainforest catfish species from Southeastern Brazil (Siluriformes: Heptapteridae)

Figure 3. Left lateral view of an ethanol-preserved, recently collected specimen of P. longipinnis, MZUSP 116324, 57.6 mm SL.

Figure 1 in Pectoral-fin glands and delivery apparatus in the catfish genus Brachyrhamdia Myers, 1927 (Siluriformes: Heptapteridae)

Figure 1: Ventral view of the pectoral region of Brachyrhamdia species, exposed in situ axillary glands after the removal of skin, hypaxial musculature and loose connective tissue and adipose tissue. (A) Brachyrhamdia marthae, LIRP 10040, 31.4 mm SL. Both left and right axillary glands (arrow) are exposed, right gland limits highlighted by white dashed line. (B) Brachyrhamdia heteropleura, LIRP 7419, 33.4 mm SL. Right axillary gland is exposed (arrow), with its limits highlighted by white dashed line, and portion of left axillary gland can be seen near pectoral-fin base by transparency. Scale bar: 1 mm.

Figure 3 in Pectoral-fin glands and delivery apparatus in the catfish genus Brachyrhamdia Myers, 1927 (Siluriformes: Heptapteridae)

Figure 3. (A₁) Dorsal view of Brachyrhamdia marthae right pectoral-fin spine and girdle, USNM 305641, total spine length 5.8 mm; (A₂) Illustration of B. marthae right pectoral-fin spine in dorsal view. Black indicates the ossified portion of spine, while gray portion indicates the unossified spurious ray; (B₁) Dorsal view of B. heteropleura right pectoral-fin spine and girdle, USNM 226105, total spine length 4.6 mm; (B₂) Illustration of B. heteropleura right pectoral-fin spine in dorsal view. Black indicates the ossified portion of the spine, while the gray portion indicates the unossified spurious ray (completed according to left pectoral-fin spine). The proximal portion of spine cannot be observed when the spine is articulated, therefore illustrations of such portion were produced according to direct observation. Abbreviations: ad = anterior denticulation, clth = cleithrum, pcp = posterior cleithrum process, ps = posterior serration.

Figure 2 in Pectoral-fin glands and delivery apparatus in the catfish genus Brachyrhamdia Myers, 1927 (Siluriformes: Heptapteridae)

Figure 2. Longitudinal oblique section of B. heteropleura left pectoral fin girdle, LIRP 7419, 30.9 mm SL, indicating gland cells wrapped by connective tissue. Abbreviations: agc = axillary gland cells (including binucleated cells), musc = musculature, clth = cleithrum. Scale bar: 0.5 mm.

Figure 6 in The rediscovery of Pimelodella longipinnis (Borodin, 1927), an enigmatic Atlantic Rainforest catfish species from Southeastern Brazil (Siluriformes: Heptapteridae)

Figure 6. Subaquatic photograph at Rio Quilombo, a rocky bottom stream where part of P. longipinnis specimens were collected (MZUSP 116324). Photograph by Douglas Rey, December 2, 2014. Material observed

Figure 4 in Pectoral-fin glands and delivery apparatus in the catfish genus Brachyrhamdia Myers, 1927 (Siluriformes: Heptapteridae)

Figure 4: Histological preparations of the right pectoral-fin spine of Brachyrhamdia species, indicating gland cells between bony spine and epidermis. (A) B. marthae, LIRP 10040, 23.9 mm SL, transversal section: (A₁) General view of spine (A₂) Detail of posterior edge of spine. (B) B. heteropleura, LIRP 7419, 30.9 mm SL, oblique transversal section: (B₁) General view of spine; (B₂) Detail of posterior edge of spine. Abbreviations: ad = anterior denticulation, ep = epidermis, ps = posterior serration, sp = pectoral-fin spine, vgc = superficial pectoral-fin spine venom gland cells. Epidermal cells indicated in B. heteropleura morphologically resemble club cells. Scale bar: 0.05 mm.

Figure 1 in The rediscovery of Pimelodella longipinnis (Borodin, 1927), an enigmatic Atlantic Rainforest catfish species from Southeastern Brazil (Siluriformes: Heptapteridae)

Figure 1. Left lateral (A) and dorsal (B) views of Pimelodella longipinnis (Borodin, 1927), AMNH 8642, holotype of Rhamdella longipinnis, 84.6 mm SL. Photo provided by AMNH staff.

Figure 2 in The rediscovery of Pimelodella longipinnis (Borodin, 1927), an enigmatic Atlantic Rainforest catfish species from Southeastern Brazil (Siluriformes: Heptapteridae)

Figure 2. Ventral view of left pectoral-fin spine of Pimelodella longipinnis, AMNH 8642, holotype of Rhamdella longipinnis, total length of spine 11.5 mm.

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Fig. 3 in Skin extract from Rhamdia quelen (Siluriformes: Heptapteridae) does not promote stress in conspecifics

Fig. 3. Locomotion displayed by Rhamdia quelen. Symbols

Figure 22 in Two new, remarkably colored species of the Neotropical catfish genus Cetopsorhamdia Eigenmann & Fisher, 1916 (Siluriformes, Heptapteridae) from Chapada dos Parecis, western Brazil, with an

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 21 in Two new, remarkably colored species of the Neotropical catfish genus Cetopsorhamdia Eigenmann & Fisher, 1916 (Siluriformes, Heptapteridae) from Chapada dos Parecis, western Brazil, with an

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 20 in Two new, remarkably colored species of the Neotropical catfish genus Cetopsorhamdia Eigenmann & Fisher, 1916 (Siluriformes, Heptapteridae) from Chapada dos Parecis, western Brazil, with an

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 23 in Two new, remarkably colored species of the Neotropical catfish genus Cetopsorhamdia Eigenmann & Fisher, 1916 (Siluriformes, Heptapteridae) from Chapada dos Parecis, western Brazil, with an

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.

Figure 18 in Two new, remarkably colored species of the Neotropical catfish genus Cetopsorhamdia Eigenmann & Fisher, 1916 (Siluriformes, Heptapteridae) from Chapada dos Parecis, western Brazil, with an

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 in Two new, remarkably colored species of the Neotropical catfish genus Cetopsorhamdia Eigenmann & Fisher, 1916 (Siluriformes, Heptapteridae) from Chapada dos Parecis, western Brazil, with an

Figure 19. Left pectoral fin of Cetopsorhamdia spilopleura, MZUSP 118307, 58.9 mm SL, paratype (radiograph). Dorsal view. Scale bar = 3 mm.

Figure 15 in Two new, remarkably colored species of the Neotropical catfish genus Cetopsorhamdia Eigenmann & Fisher, 1916 (Siluriformes, Heptapteridae) from Chapada dos Parecis, western Brazil, with an

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 17 in Two new, remarkably colored species of the Neotropical catfish genus Cetopsorhamdia Eigenmann & Fisher, 1916 (Siluriformes, Heptapteridae) from Chapada dos Parecis, western Brazil, with an

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 16 in Two new, remarkably colored species of the Neotropical catfish genus Cetopsorhamdia Eigenmann & Fisher, 1916 (Siluriformes, Heptapteridae) from Chapada dos Parecis, western Brazil, with an

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 14 in Two new, remarkably colored species of the Neotropical catfish genus Cetopsorhamdia Eigenmann & Fisher, 1916 (Siluriformes, Heptapteridae) from Chapada dos Parecis, western Brazil, with an

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 13. Cetopsorhamdia spilopleura, MZUSP 121503, 47.9 in Two new, remarkably colored species of the Neotropical catfish genus Cetopsorhamdia Eigenmann & Fisher, 1916 (Siluriformes, Heptapteridae) from Chapada dos Parecis, western Brazil, with an

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.