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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Protricomoides

Protricomoides Timm, 1970 (ref. ID; 3571)

Desmoscolecida Filipjev, 1929: Family Desmoscolecidae Shipley, 1896: Subfamily Desmoscolecinae Shipley, 1896 (ref. ID; 3571)

ref. ID; 878

Protricomoides was a monotypic genus with P. squamosus Timm, 1970 as type species. Freudenhammer (1975) drew the attention to the close resemblance of the monotypic genus Protricomoides with the genus Desmoscolex, the only difference lying in the possession or not of 'Winziger cuticularer Anhange auf den Cuticularrringen der Interzonen' the so-called scales in Timm (1970). Freudenhammer compared these structures with the rows of spines on the interzone annules in some Desmoscolex-species. A study of the type material of P. squamosus revealed that Timm's 'scales' consist of small patches of fine concretion and secretion material around pores; the pores are arranged in transverse row on each body annule. Those patches of concretion material may interconnect and form a larger band, mainly at the level of the insertion of the somatic setae. Except anteriorly and posteriorly, on the body, a distinction between main rings and interzones is obscure or non-existing. Protricomoides is considered a subgenus of Desmoscolex. It is represented by two species: D. (P.) squamosus and D. (P.) pravus sp. nov., and Protricomoides shows stages of transition between Pareudesmoscolex-specimens possessing complete main rings anteriorly and posteriorly and concretion scales on the rest of the body. (ref. ID; 878)

ref. ID; 3571

Type species

Protricomoides squamosus Timm, 1970 (ref. ID; 3571)
  1. Protricomoides squamosus Timm, 1970 (ref. ID; 878, 3571)