Cambeva botuvera

description

Description. Morphometric data appear in Table 2. Body moderately slender, subcylindrical and slightly depressed anteriorly, compressed posteriorly. Greatest body depth in area just anterior to pelvic-fin base. Dorsal profile of head and trunk slightly convex, approximately straight on caudal peduncle; ventral profile straight to slightly convex between lower jaw and end of anal-fin base, straight on caudal peduncle. Skin papillae minute. Anus and urogenital papilla in vertical through anterior portion of dorsal-fin base. Head trapezoidal in dorsal view. Anterior profile of snout convex in dorsal view. Eye small, dorsally positioned in head. Posterior nostril located nearer anterior nostril than orbital rim. Tip of maxillary and rictal barbels reaching area between interopercular patch of odontodes and pectoral-fin base; tip of nasal barbel reaching area between eye and opercular patch of odontodes. Mouth subterminal. Jaw teeth 40 - 42 in both premaxilla and dentary, irregularly arranged, pointed and slightly curved. Branchial membrane attached to isthmus only at its anterior point. Branchiostegal rays 8 or 9. Dorsal and anal fins subtriangular; total dorsal-fin rays 12 (iii + II +

Filling distribution gaps: Two new species of the catfish genus Cambeva from southern Brazilian Atlantic Forest (Siluriformes, Trichomycteridae)

diagnosis

Diagnosis. Cambeva botuvera is distinguished from all other species of the genus, except C. balios (Ferrer & Malabarba, 2013), C. cubataonis (Bizerril, 1994), C. davisi (Haseman, 1911), C. diatropoporos (Ferrer & Malabarba, 2013), C. guareiensis Katz & Costa, 2020, C. horacioi Reis, Frota, Fabrin & da Graca, 2020, C. papillifera ,, C. perkos (Datovo, Carvalho & Ferrer, 2012), C. plumbea (Wosiacki, 2005), C. stawiarski (Miranda Ribeiro, 1968), and C. tropeira (Ferrer & Malabarba, 2011), by having seven pectoral-fin rays (vs. five, six or eight). Cambeva botuvera differs from these congeners by the following combination of character states: 16 - 20 dorsal procurrent caudal-fin rays (vs. 14 - 15 in C. tropeira, 21 - 22 in C. cubataonis and C. plumbea, and 27 - 29 in C. stawiarski); 14 - 16 ventral procurrent caudal-fin rays (vs. 9 - 13 in C. balios, C. cubataonis, C. davisi, C. diatropoporos, and C. guareiensis); 39 - 40 vertebrae (vs. 35 - 38 in C. cubataonis, C. diatropoporos, C. guareiensis, C. horacioi, and C. stawiarski); eight or nine branchiostegal rays (vs. ten in C. perkos and C. stawiarski); jaw teeth conical (incisiform in C. davisi, C. guareiensis and C. stawiarski); minut

Filling distribution gaps: Two new species of the catfish genus Cambeva from southern Brazilian Atlantic Forest (Siluriformes, Trichomycteridae)

distribution

Distribution and habitat. Cambeva botuvera occurs in fast-flowing low-altitude streams (about 160 - 170 m asl), of the Rio Itajai-Mirim basin (Fig. 5).

Filling distribution gaps: Two new species of the catfish genus Cambeva from southern Brazilian Atlantic Forest (Siluriformes, Trichomycteridae)

etymology

Etymology. The name Cambeva botuvera is an allusion to the occurrence of the species in the municipality of Botuvera, Santa Catarina, southern Brazil. This name is derived from the Tupi-Guarani, possibly meaning brilliant mountain.

Filling distribution gaps: Two new species of the catfish genus Cambeva from southern Brazilian Atlantic Forest (Siluriformes, Trichomycteridae)