From the recent scientific
paper by Wright, J.J. and L.M. Page. (2006) this species
is very much like S.
The diagnosis for both species is virtually identical
and the main differences concern the larger eye in
S. grandiops, fewer fin rays in the dorsal
and pectoral fins, and also the much smaller adult
size. It is quite difficult to differentiate between
the two species from pictures and if you can count
the fin rays (ii,7 in S. grandiops and ii,8
in S. multipunctata) in living animals that
is a much better bet. Description:
Dorsal spines (total): 2; Dorsal soft rays (total):
7 - 7; Anal spines: 3 - 4; Anal soft rays: 6 - 8;
Vertebrae: 34. Body is compressed laterally, with
a convex predorsal profile, interrupted by a ridge
formed by dorsal rim of eye; head somewhat depressed.
Eye dorsolateral, ovoid, its diameter 64.2-81.0 %
of snout length. Mandibular teeth 17-26, short and
unicuspid, arranged in a single transverse row. Maxillary
barbel without basal membrane, lacking branches or
crenelations, and extending at least to base of pectoral
fin; lateral mandibular barbel extending to point
just short of anterior margin of pectoral girdle,
with 4-5 non-tuberculate branches, lacking secondary
branches; medial mandibular barbel 1/2 to 2/3 length
of lateral barbel, with 4-5 pairs non-tuberculate
branches, lacking secondary branches. Dorsal fin spine
long, striated, nearly straight, terminating in short,
white filament; anterior margin of fin spine with
0-3 small serrations distally; posterior margin with
small serrations distally. Pectoral fin spine roughly
equal in length to dorsal fin spine, striated, slightly
curved, terminating in short, white filament; anterior
spine margin with many small, antrorse serrations;
posterior margin with large, retrorse serrations along
entire length. Adipose fin short, poorly developed,
margin convex. Body with large spots, fin spines brown
to black. Aquarium Care: As per species
from Lake Tanganyika i.e. S. multipunctatus.
Etymology: grandis: from
the Latin meaning large or big, and ops meaning
eye, a reference to the large eye.
Lake Tanganyika, from the Tanzanian north-east side
of the lake.
Froese, R. and D. Pauly.
Editors. 2009. FishBase. World Wide Web electronic
publication. www.fishbase.org, version (07/2010).
Wright, J.J. and L.M.
Page. 2006 Taxonomic
revision of Lake Taganyikan Synodontis (Siluriformes:
Mochokidae). Florida Mus. Nat. Hist. Bull. 46(4):99-154.