Rhabdostyla volvocis Nenninger 1948

Souza, Pedro Mendes De, Rossi, Mariana Fonseca & Dias, Roberto Júnio Pedroso, 2024, Systematic review of the genera Rhabdostyla Kent 1880 and Orborhabdostyla Foissner et al. 2010 (Ciliophora, Peritrichia, Epistylididae), Zootaxa 5399 (3), pp. 201-230 : 224

Rhabdostyla volvocis Nenninger 1948

— Fig. 1 , H

Epistylis (Rhabdostyla) volvocis Nenninger, 1948 — Stiller, 1971: 71, pl. 36, fig. H.

Diagnosis: Size about 48.8–60 µm. Funnel-shaped body. Thin pellicle with thickened striations. Peduncle approximately 10 µm in size. Thick, snail-like curved peristomial collar that expands toward the vestibule and is wider than the rest of the body. Vestibule short. Contractile vacuole found just below the peristomial collar. Peristomial disc slightly arched. Macronucleus V-shaped and found in the middle of the body. With some food vacuums and a coarse granulation filling the body. Found on algae, Volvox globator .

Remarks: diagnosis compiled from Nenninger (1948) and Stiller (1971). According to Nenninger (1948), the observation of the nucleus is still absent, it only paid attention to the form for the description.

Figures

FIGURE 1. Schematic drawing of representatives of the genus Rhabdostyla and Orborhabdostyla.A: Orborhabdostyla brevipes; B: Orborhabdostyla bromelicola; C: Orborhabdostyla kahli; D: Rhabdostyla annulata; E: Rhabdostyla arenaria; F: Rhabdostyla arenicolae; G: Rhabdostyla bosminae; H: Rhabdostyla volvocis; I: Rhabdostyla chironomi; J: Rhabdostyla commensalis.