Fig. 1
Ituglanis agreste, new species, holotype, MNRJ 40196, 40.5 mm SL, Brazil, Bahia State, municipality of Boa Nova, rio de Contas basin. a - lateral; b - dorsal; c - ventral views.
Fig. 2
Neurocranium and Weberian capsule of Ituglanis agreste, UFRN 38, 41.8 mm SL; a, dorsal view; b, ventral view. Abbreviations: AOR, antorbital; APA, autopalatine; BAO+EXO, basioccipital-exoccipital bone; EPO, epioccipital; FRO, frontal; FSO, parieto-supraoccipital fontanel; i1-i11, infraorbital pores; ll1-ll3, lateral line pores; LET, lateral ethmoid; MAX, maxilla; MET, mesethmoid; ORB, orbitosphenoid; PAS, parasphenoid; PMX, premaxilla; po1, preopercular pore; PSO, parietosupraoccipital; PSC, posttemporo-supracleithrum; PTE, pterotic; s1-s6, supraorbital pores; SPH+POT+PSF, sphenotic-prooticpterosphenoid; SSO, sesamoid supraorbital; VOM, vomer; WEB, Capsule of Weberian apparatus. Scale bar = 1 mm.
Fig. 3
Left mandible of Ituglanis agreste, paratype, UFRN 38, 41.8 mm SL. Medial view. Abbreviations: AAR, anguloarticulo- retroarticular; CPR, coronoid process; DEN, dentary. Scale bar = 1 mm.
Fig. 4
Right suspensorium and opercular series of Ituglanis agreste, UFRN 38, 41.8 mm SL. Lateral view. The arrow indicates the interopercle plate broad and elongate. Abbreviations: HYO, hyomandibula; IOP, interopercle; MPT, metapterygoid; OPE, opercle; POP, preopercle; QUA, quadrate. Scale bar = 1 mm.
Fig. 5
Left hyoid arch of Ituglanis agreste, paratype, UFRN 38, 41.8 mm SL. Ventral view. Abbreviations: ACH, anterior ceratohyal; BRR, branchiostegal rays; PCH, posterior ceratohyal; PUH, parurohyal; VHH, ventral hypohyal. Scale bar = 1 mm.
Fig. 6
Branchial skeleton of Ituglanis agreste, paratype, UFRN 38, 41.8 mm SL. Dorsal view (left dorsal elements and gill rakers not shown). Abbreviations: BB2-4, basibranchials 2 to 4; CB1-5, ceratobranchials 1 to 5; EB1-4, epibranchials 1 to 4; HB1-3, hypobranchials 1 to 3; PB3-4, pharyngobranchials 3 to 4; TPL, tooth plate. Scale bar = 1 mm.
Fig. 7
Left Pectoral girdle of Ituglanis agreste, paratype, UFRN 38, 41.8 mm SL. Ventral view. Abbreviations: CLE, cleithrum; PTR, pectoral rays; PR1, proximal radial 1 (cartilaginous); PR2, proximal radial 2; SCO, scapulocoracoid. Scale bar = 1 mm.
Fig. 8
Pelvic girdle of Ituglanis agreste, paratype, UFRN 38, 41.8 mm SL. Dorsal view. Abbreviations: APS, anterior processes; AMP, anterior medium processes; BPT, basipterygium; PSP, pelvic splint; PVR, pelvic rays. Scale bar = 1 mm.
Fig. 9
Caudal skeleton of Ituglanis agreste, paratype, UFRN 38, 41.8 mm SL. Left lateral view. Abbreviations: HS, hemal spines; H3, hypural 3; H4+H5, hypurals 4 and 5 fused; NS, neural spine; PC1+UR, pleural 1 and ural fused; PC2, pleural centrum 2; PH+HU1+HU2, parhypural partially fused to hypurals 1-2; UN, uroneural. Scale bar = 1 mm.
Fig. 10
Geographic distribution of the three Ituglanis species in northeastern Brazil. The locality of Ituglanis agreste (rio Tarugo) represents the type locality.
Fig. 11
Type locality of Ituglanis agreste, Brazil, Bahia State, Boa Nova municipality, rio Tarugo, rio de Contas basin.
