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  • Dinotopterus nyasensis
Jump to next section Cat-eLog Data Sheet
Scientific NameDinotopterus nyasensis  (Worthington, 1933)
Common NameSapuwa
Type LocalityLake Malawi [Lake Nyasa], se. Africa.
Synonym(s)Clarias nyasensis, Dinotopterus nyasensis
EtymologyDinotopterus: From the Greek, di-,meaning two, noton, meaning back and pteron, meaning fin; in reference to the presence of the two dorsal fins (rayed and adipose). 
Jump to next section Species Information
Size 1000mm or 39.4" SL. Find near, nearer or same sized spp.
IdentificationB. nyasensis can be distinguished from the other species of Bathyclarias by having all of the following characters (adapted from Greenwood, 1961: 230):
1. Gill rakers long, length of longest gill raker (on outer arch) divided by length of longest gill filament = 0.7-1.0;
2. Body relatively slender;
3. Maxillary barbel contained 1.8-2.2 times in head length.
SexingIn ventral view especially, females are much broader in the body than males of equal age and rearing practices.
Jump to next section Habitat Information
DistributionAfrica: Endemic to Lake Malawi.
African Waters, Zambesi, Malawi (click on these areas to find other species found there)
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IUCN Red List StatusLeast Concern
Jump to next section Husbandry Information
FeedingOccurs in open water and mainly filters zooplankton. Also feeds on small fishes and insect larvae.
BreedingUnreported.
Jump to next section Further Information
ReferencesProc. Zool. Soc. Lond. Pt. 2 308 Fig. 9
Registered KeepersNone.
Breeding ReportsNone.
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Last Update2018 Apr 11 08:28 (species record created: 2004 Apr 04 00:00)