Lethrinops sp. "Yellow Tail" "South East Arm"

Lethrinops sp. "Yellow Tail" (South East Arm)

South East Arm — SOWTH EEST ARM (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 Lethrinops sp. "Yellow Tail" account →

Specific to South East Arm

  • 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 Lethrinops sp. "Yellow Tail".

CARESNOT LISTED
Genus type speciesLethrinops lethrinusdescribed as Chromis lethrinus Günther 1894
Scientific size5 in13 cm total length
Temperature75–82 °F24–28 °C
pH7.7–8.6alkaline
Hardness (GH)up to 446 ppm
Habitat watermoderately soft, alkaline, well-buffered79 ppmLake Malawi
Depth26–82 ft8–25 m
DietSand-sifting invertivore; genus-typical, takes mouthfuls of sand and filters out chironomid larvae, ostracods, and other small benthic invertebrates.
Breedingmaternal mouthbroodernot documented for this form; modest, genus-typical
Sexual dimorphismYesTrade name implies breeding males show a yellow caudal fin against a more muted body colour; not formally documented in detail.
PhotographsSee photosGoogle Images →

The South East Arm population

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

Colour reference: living South East Arm fish at malawi.si →

About the species

Lethrinops sp. "Yellow Tail" is an undescribed sand-dwelling cichlid recorded from the South East Arm of Lake Malawi. Its trade name points to a yellow caudal fin in breeding males, a straightforward field mark used to separate it from the many other sand-dwelling haplochromines sharing this densely populated stretch of shoreline. Little else has been formally documented about the form, and this article is careful not to extend past what is actually known.

Full Lethrinops sp. "Yellow Tail" account →

Sources

  1. malawi.si — Lethrinops sp. "Yellow Tail" "South East Arm"
  2. malawi.si — species and locality database (Konings-based)
  3. Konings, A. — Malawi Cichlids in their Natural Habitat (Cichlid Press; foremost Malawi field authority)
  4. Cichlid Room Companion — Lethrinops (genus profile)
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