Two new species of Trichomycterus (Siluriformes: Trichomycteridae) from the Rio Itabapoana Basin, south-eastern Brazil Author Costa, Wilson J. E. M. 2527CC43-7419-4234-982D-AD4100E5AFAC Laboratory of Systematics and Evolution of Teleost Fishes, Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. wcosta@acd.ufrj.br Author Barbosa, Maria Anaïs 4159E4CF-A382-4515-BB10-06889E0B393D Laboratory of Systematics and Evolution of Teleost Fishes, Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. anaisbarbosasv@gmail.com Author Katz, Axel M. D6A935E2-3A97-444A-84CC-0CEC45CFFB79 Laboratory of Systematics and Evolution of Teleost Fishes, Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. axelmk@gmail.com text European Journal of Taxonomy 2024 2024-12-02 970 122 137 https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2753/12607 journal article 306404 10.5852/ejt.2024.970.2753 c8719989-b153-4aa1-9d28-a49c13787d37 2118-9773 14288599 5CC3E845-6E67-4C01-96F7-E143DBA292B9

Table 2. Morphometric data of Trichomycterus (Psammocambeva) fabioheppi sp. nov.

	Holotype	Paratypes (n = 6)
standard length (SL)	68.1	42.3–53.7
percentage of standard length
body depth	15.5	16.8–20.4
caudal peduncle depth	13.0	11.6–13.9
body width	13.4	10.6–14.1
caudal peduncle width	4.7	3.5–4.6
pre-dorsal length	63.4	63.5–67.7
pre-pelvic length	61.9	61.6–65.6
dorsal-fin base length	11.3	11.7–13.3
anal-fin base length	9.4	9.5–11.4
caudal-fin length	13.3	13.9–16.4
pectoral-fin length	12.8	11.5–13.3
pelvic-fin length	9.6	9.0–10.7
head length	22.1	21.7–24.5
percentage of head length
head depth	45.2	47.8–55.2
head width	84.4	86.7–93.5
snout length	44.3	39.1–42.7
interorbital width	25.3	25.6–31.6
preorbital length	13.7	10.1–13.8
eye diameter	10.2	11.8–14.5