Cryptaulax (protist)

Cryptaulax was introduced by Skuja (Skuja, 1948). He considered it to be a type of cryptomonad. Subsequent studies suggest that it is euglenozoan.[2] Because Skuja had clearly misidentified the flagellate as a cryptomonad, Vørs [3] argued that at least some species should be placed in the genus Rhynchobodo. This thinking was not adopted by Simpson. The genus had been erected by Skuja to accommodate Spiromonas akopus, described by him in 1939.[4] The genus name Spiromonas had previously been applied to other organisms. This invalidates the name according to the rules of nomenclature, and requires a replacement name - hence Cryptaulax. The similarity of the general morphology of C. akopus with other species that have been studied in more detail and deemed to be euglenozoan support the argument that the genus is euglenozoan.

Original drawing of Cryptaulax akopus (as Spiromonas akopus) by Skuja, 1939
Original description of Cryptaulax by Skuja in his 1948 paper.
Skuja's drawings of Cryptaulax vulgaris from his 1948 publication

Cryptaulax
Scientific classification
Domain:
Eukaryota
Division:
Cryptophyta
Class:
Cryptophyceae
Order:
Cryptomonadales
Family:
Cryptomonadaceae
Genus:
Cryptaulax

Skuja, 1948[1]
Species

See text

Species

Cryptaulax akopos – Cryptaulax conoidea – Cryptaulax elegans – Cryptaulax formica – Cryptaulax longiciliatus – Cryptaulax marina – Cryptaulax taeniata – Cryptaulax vulgaris

References
  1. Skuja, H. (1948): Taxonomie des Phytoplanktons einiger Seen in Uppland, Schweden. 39 Taf. – Symbolae Botanicae Upsalienses. 9, 3: 1–399, Uppsala.
  2. Simpson A.G.B. 1997. The identity and composition of the Euglenozoa. Arch. Protistenkd. 148 (1997): 318-328
  3. Vørs , N. 1992. Heterotrophic amoebae, flagellates, and heliozoa from the Tvärminne area, Gulf of Finland, in 1988-1990. Ophelia, 36:1-109.
  4. Skuja, H. 1939. Beitrage zur Algenflora Lettlands, 2. Acta Horti. Bot. Univ. Latviensis 11/12


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