A guideline to nematocyst nomenclature and classification, and some notes on the systematic value of nematocysts*

By C. Östman. 2000

170 citations recorded by the source corpus.

Cnidocyst nomenclature is based on the structure of the tubule and its armature as viewed in the light microscopy (LM). Investigations utilising optically improved LM and scanning electron microscopy have revealed some errors in the interpretation of the fine structure of tubules and armature of nematocysts. Categories of nematocyst have been modified, therefore, to incorporate observations made with new visualising techniques. Isorhizas are defined as nematocysts whose tubule is of uniform or nearly uniform thickness proximal to the midpoint, while b-mastigophores are nematocysts with a rod-shaped encapsulated shaft and a prominent armature on the everted shaft. The category of amastigophores is retained but redefined as p-amastigophores for the V-shaped notch at the base of encapsulated shaft. The trirhopaloids are found to be similar to the birhopaloids. Mesobasic is redefined as an intermediate length of discharged shafts between micro- and macrobasic. Astomocnidae is redefined as entangling nematocysts and stomocnidae as penetrants.

Subfields: Ecology, Oceanography, Plant Science

View Paper: https://www.semanticscholar.org/paper/7d0242de6db6e61b25c51f7b30bbe41906e38680

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In Ecology

1. F. Pagés
2. F. Boero
3. Michael N. Dawson
4. J. Stake
5. D. Fautin
6. J. Gili
7. Jennifer E. Purcell
8. J. Waters

In Oceanography

1. P. Cartwright
2. F. Boero
3. Michael N. Dawson
4. A. Collins
5. F. Pagés
6. D. Fautin
7. J. Gili
8. J. Waters

In Plant Science

1. J. Stake

Citations in the corpus

• Fauna of the Mediterranean Hydrozoa (2004, background): “Table 1, modified after Mariscal, 1974, describes the discharged stages of the most important cnidocysts, (see also Bouillon et al., 1986; 1988; Östman, 2000).”
• The phylum Cnidaria: A review of phylogenetic patterns and diversity 300 years after Linnaeus (2007, background): “Several classifications of nematocysts have been proposed (e.g., Schmidt 1972; Mariscal 1974; England 1991; Östman 2000), leading to conflicting diagnoses of the cnidom in some taxa.”