Diplotaxodon dentatus "Thumbi East Island"

Thumbi East IslandTOOM-bee EEST EYE-land (approx.)

The fish

How this cichlid is built, and everything about how it lives, eats and breeds, is shared with the species — this page doesn't repeat it.

Read the full Diplotaxodon dentatus account →

Specific to Thumbi East Island

  • Collection locality & coordinates
  • Local coloration — best judged from the living-fish photo
  • Kept as a single-provenance line, never crossed with other collection points

Care facts below are the species' — shared with Diplotaxodon dentatus.

CARESNOT LISTED
Scientific size5.5 in14 cm standard length
Temperature75–82 °F24–28 °C
pH7.7–8.8alkaline
Depth66–492 ft20–150 m
DietOpen-water feeder on zooplankton and, per the more heavily toothed genus members, some small fish
BreedingMaternal mouthbrooder (presumed, genus-typical)Not documented; genus is notably low-fecundity, often 1–2 well-developed fry per brood in well-studied congeners
Sexual dimorphismYesGenus-typical: ripe males expected to show a subdued, largely monochromatic black-and-white breeding pattern; females plain and silvery. Not documented in detail for this species.
PhotographsSee photosGoogle Images →

The Thumbi East Island population

Diplotaxodon dentatus "Thumbi East Island" is the Thumbi East Island population of Diplotaxodon dentatus, a geographic colour form from the Malawi coast of Lake Malawi in the southern part of the lake. It is the same species as Diplotaxodon dentatus, distinguished by its collection locality and local coloration; aquarists keep and breed it as a discrete, provenance-labelled line.

Colour reference: living Thumbi East Island fish at malawi.si

About the species

Diplotaxodon dentatus is an offshore, open-water cichlid from Lake Malawi's little-known pelagic haplochromine radiation, a group of silvery, schooling fish that live away from the rocky shallows most aquarists associate with the lake. Its species name — Latin for "toothed" — points to more conspicuous dentition than in some of its congeners, a hint of a diet leaning further toward small fish and larger prey items than the genus's more strictly zooplanktivorous members. It is documented here from Monkey Bay and Thumbi East Island, two long-studied sites in the southern basin near Cape Maclear.

Full Diplotaxodon dentatus account →

Sources

  1. malawi.si — Diplotaxodon dentatus "Thumbi East Island"
  2. Eschmeyer's Catalog of Fishes — online database (authority for valid fish names; genus Diplotaxodon, Trewavas 1935)
  3. Konings, A. — Malawi Cichlids in their Natural Habitat (Cichlid Press; genus Diplotaxodon and the offshore cichlid community)