Pangasianodon hypophthalmus (Sauvage 1878)

Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, Zootaxa 5083 (1), pp. 1-72 : 9-10

10) * Pangasianodon hypophthalmus (Sauvage 1878) ;

Pangasiidae .

Striped Catfish; Pangasio, Panga ( Fig. 3D ).

Diagnosis: This exotic species differs from the native species of the Siluriformes by the following combination of characters: body long, latterly flattened with no scales; head relatively small; two pairs of anterior barbels, the upper shorter than the lower; mouth broad with small sharp teeth on jaw, vornerine and palatal bones; eyes relatively large; gill rakers normally developed; fins dark grey or black; dorsal-fin rays 6; and body color uniformly grey but sometimes with greenish tint and sides silvery (juveniles with a black stripe along lateral line and another long black stripe below lateral line).

Basis of the record: A single specimen was collected near the laguna San Sebastian, Caño Negro, Alajuela (10.86306, -84.78078), at 41 m. a.s.l., on September 29, 2021, by Bryan Castro and Jader Urbina.

Remarks: This species was recently introduced to the country by government agencies and private entities in an attempt to strengthen aquaculture activities. This species is also used in the aquarium trade.

Figures

FIG. 3. New country records. (A) Mugil incilis, specimen captured in the Río Pacuare, near the mouth of the river, Siquirres, Limón (10.219424, -83.284898), at 8 m.a.s.l., on July 22, 2004, by Jorge Picado (UCR 2835-005). (B) Oligoplites saliens, specimen captured in the Caño Palma, near the Caño Palma Biological Station, Pococí, Limón (10.5938, -83.52731), at 11 m.a.s.l., on February 22, 2019, by Nathan Lovejoy et al. (UCR 3311-001). (C) Oreochromis aureus, specimen captured the Río Pacuar (Térraba river basin), 4 km SE of San Isidro del General, under bridge on road San Isidro-Dominical, San José (09.35264, -83.72790), at 619 m.a.s.l., on March 25, 2013 by Carlos Garita (UCR 3018-001). (D) Pangasianodon hypophthalmus, specimen captured in the laguna San Sebastian, Caño Negro, Alajuela (10.8630, -84.7807), at 41 m.a.s.l., on September 29, 2021, by Bryan Castro and Jader Urbina. (E) Rhencus macracanthus, specimen captured in the Río Lagarto, Chomes, Puntarenas (10.08320, -84.92064), at 15 m.a.s.l., on September 1, 1979, by William Bussing et al (UCR 1268-025). (F) Thalassoma bifasciatum, specimen captured in the Quebrada Cocles (Matina river basin), 2.5 km SE of Puerto Viejo, near the bridge on El Tucán-Cocles road, Limón (9.64221, -82.73588), at 22 m.a.s.l., on August 20, 2020, by Walter Carranza. (G) Trinectes fluviatilis, specimen captured in the Quebrada Cocal Amarillo, 5 Km N of Pavones, on the Puerto Pilón-Pavones road, Puntarenas (8.43643, - 83.09660), at 26 m.a.s.l., on March 30, 2021, by Arturo Angulo et al. (H) Trinectes xanthurus, specimen captured in the Río Tempisque (Tempisque river basin), at Puerto Humo, Guanacaste (10.31653, -85.35365), at 9 m.a.s.l., on January 25, 1976, by William Bussing et al. (UCR 0970-005). Range extensions. (I) Achirus declivis, specimen captured in the Río Moín, at the Puerto Fluvial JAPDEVA, Limón (09.99745, -83.08077), at 7 m.a.s.l., on December 14, 2006, by Karina Rodríguez (UCR 2761-003). (J) Amatitlania myrnae, specimen captured in the Río Estrella, Valle La Estrella, Limón (9.77552, -82.93240), at 13 m.a.s.l., on April 6, 2014, by Arturo Angulo. (K) Amphilophus citrinellus, specimen captured in the Río Bebedero, near Paso Real, Cañas, Guanacaste (10.43318, -85.15697), at 32 m.a.s.l., on August 7, 2021, by Luis Bolivar Montero-Chacón. (L) Brachyrhaphis olomina, specimens captured in an unnamed pound in the Reserva Biológica Monteverde, Altos de San Luis, Monteverde, Puntarenas (10.31667, -84.80932), at 1486 m.a.s.l., on July 6, 2019, by Arturo Angulo.