INVESTIGADORES
DELPIANI Gabriela Elina
artículos
Título:
Dentition of the apron ray Discopyge tschudii (Elasmobranchii: Narcinidae)
Autor/es:
SPATH, M. CECILIA; DELI ANTONI, MARIANA; DELPIANI, GABRIELA
Revista:
JOURNAL OF FISH BIOLOGY
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Lugar: Londres; Año: 2017 vol. 91 p. 1166 - 1177
ISSN:
0022-1112
Resumen:
The present study provides quantitative and qualitative analyses of the dentition of Discopyge tschudii.Overall, 193 individuals (99 males and 94 females) of D. tschudii were collected on scientific trawlsurveys conducted by the National Institute for Fisheries Research and Development (INIDEP)and commercial vessels in Argentina. Discopyge tschudii has rhombic-shaped teeth, arrangedin a semipavement-like dentition; each tooth has an erect cusp slightly inclined posteriorly andholaulachorized root. Mature males have greater tooth lengths than females and immature specimens.Discopyge tschudii exhibits dignathic homodonty and gradient monognathic heterodonty where teethof the commissural row are shorter than those of the symphyseal and internal rows.
