Cat-eLog Right Arrow Mochokidae Right Arrow Mochokinae Right Arrow The genus Synodontis

Jump to next section Summary of Synodontis
Pronouncedsin oh don tiss
EtymologySynodontis: From the Greek syn, meaning together, and odontos, meaning tooth; in reference to the closely-spaced lower jaw teeth.
IdentificationAll species in the genus Synodontis have a hardened head cap that has attached a process (humeral process) which is situated behind the gill opening and pointed towards the posterior. The dorsal fin and pectoral fins have a hardened first ray which is serrated. Caudal fin is always forked. There is one pair of maxillary barbels, sometimes having membranes and occasionally branched. The two pairs of mandibular barbels are often branched and can have nodes attached. The cone-shaped teeth in the upper jaw are short. S-shaped and movable in the lower jaw. These fish produce audible sounds when disturbed rubbing the base of the pectoral spine against the pectoral girdle.
SexingFirst lay the fish in your hand with its head toward your palm and the tail toward your fingers. Hold the dorsal spine between your middle and ring finger so the fish is belly up and you won't get stuck (Which by the way, hurts like crazy!). The genital pore is in a small furrow of tissue (in healthy fish) and will be obstructed by the pelvic fins. Pull down on the tail gently to arch the fishes spine and the pelvic fins will stand and the furrow open to display the genital pore and the anus of the fish. The male has a somewhat ridged genital papillae on which the spermatoduct is on the back side, facing the tail fin. A gravid female will also show an extended papillae but the oviduct is on the ventral side of the papillae (And may also show a little redness if really gravid). A thin or emaciated female will have just two pink pores, the oviduct and the anus.
SizeSmallest 44mm, largest 760mm, average 216mm, most commonly 200mm. All SL.
SpeciesThere are 155 "species" in the database
Keepers88 species (56%) are being kept by registered keepers
New spp. / time
1750 1770 1790 1810 1830 1850 1870 1890 1910 1930 1950 1970 1990 2010 
Jump to next section Most Kept Species
1. Synodontis eupterus (15.29%)
2. Synodontis nigriventris (8.79%)
3. Synodontis multipunctatus (8.63%)
4. Synodontis petricola (7.62%)
5. Synodontis lucipinnis (6.39%)
6. Synodontis decorus (4.85%)
7. Synodontis angelicus (4.64%)
8. Synodontis nigrita (3.3%)
9. Synodontis ocellifer (3.25%)
10. Synodontis schoutedeni (2.66%)
11. Synodontis flavitaeniatus (2.61%)

Jump to distribution.

Jump to next section Distribution of selected Synodontis species