Ichthyological Research

, Volume 54, Issue 4, pp 399–403 | Cite as

A computer system for identifying Tanganyikan cichlids using meristic and descriptive data accumulated in the literature

  • Tetsumi Takahashi
  • Taisuke Ohtsuka
  • Keiichi Matsuura


The Identification System for Tanganyikan Cichlids (ISTC) is a computer system that identifies the species of Tanganyikan cichlids based on five meristic and three descriptive characters. An index I i is proposed as the degree of proximity between an unidentified specimen and species i. For calculating this index, the system allows the use of the following: (i) the range data including the largest and smallest values of meristic characters; and (ii) the meristics, between which the correlations are unknown. Therefore, a large amount of data accumulated in literature can be used. This system is sufficiently practical, although the methods are simplified and mathematically coarse.

Key words

ISTC Identification Multivariate normal distribution Morphology Published data 


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Copyright information

© The Ichthyological Society of Japan 2007

Authors and Affiliations

  • Tetsumi Takahashi
    • 1
  • Taisuke Ohtsuka
    • 2
  • Keiichi Matsuura
    • 3
  1. 1.Laboratory of Animal Ecology, Department of Zoology, Graduate School of ScienceKyoto UniversityKyotoJapan
  2. 2.Lake Biwa MuseumShigaJapan
  3. 3.Department of ZoologyNational Museum of Nature and ScienceTokyoJapan

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