phantasia Stewart, 1985
contributors to this species:
||Dorsal spines (total):
0; Dorsal soft rays (total): 11; Anal spines: 0; Anal soft rays:
9 - 11; Vertebrae: 37. Flexible, unbranched first ray and ten
branched rays on its dorsal fin; dorsal fin situated relatively
far posteriorly; pterygiophore of anterior dorsal fin ray articulating
with neural spine of tenth vertebra; blade like neural spines
of vertebrae five through nine extend dorsally, diverging at their
dorsal ends to form a double row of ossifications just ventral
to skin between supraoccipital and dorsal fin origin; a slender
supraneural at posterior end of this v-shaped predorsal trough
has attached muscles extending anteriorly between bifid neural
spines to supraoccipital; maxillary barbel very long , reaching
posteriorly beyond anal fin base. Distal portions of dorsal, adipose
and anal fins, and most part of caudal fin almost unpigmented.
Remarks: There are currently nine species in
this genus which are poorly known and documented. Type species
is Cetopsorhamdia nasus Eigenmann & Fisher, 1916.
The genus Cetopsorhamdia is documented as having the
frontal fontanel small and far removed from the long parietal
fontanal. The first dorsal and pectoral rays are not spinous.
Bottom lobe of the caudal fin is longer and the adipose fin is
three times as long as high, and its base is longer than that
of the anal fin. Small to midsized genus (3-12cm). The larger
species are most likely predatory of smaller fish in the aquarium
as per their close relatives of the Pimelodidae family. Remarks:
Evers & Seidel (2005) captured this species as a bycatch when
collecting Oxyropis sp. in the central and lower portions
of the Rio Tapajos in Brazil.
Napo River basin, Ecuador.
1989 An atlas of freshwater and marine catfishes. A preliminary
survey of the Siluriformes. T.F.H. Publications, Inc., Neptune
City, New Jersey (USA). 784 p
Bockmann, F.A. and G.M. Guazzelli 2003 Heptapteridae
(Heptapterids). p. 406-431. In R.E. Reis, S.O. Kullander and C.J.
Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South
and Central America. Porto Alegre: EDIPUCRS, Brasil.
Froese, R. and D. Pauly. Editors. 2009.FishBase.
World Wide Web electronic publication. www.fishbase.org, version