Evolution, phylogeny and classification of Suctorea (Ciliophora) (original) (raw)
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Zootaxa, 2017
Five species of suctorian ciliates belonging to four different genera attached to meiofaunal organisms of Maldivian archipelago (Suvadiva Atoll) were documented. Three rare species (Acineta sp., Thecacineta urceolata Liao & Dovgal, 2015 and Limnoricus ceter Jankowski, 1981) and one common suctorian ciliate Thecacineta calix (Schröder, 1907) are re-described from nematodes (Croconema cinctum Cobb, 1920, Desmodorella tenuispiculum Allgén, 1928 and Desmodora sp.) and harpacticoid copepod basibionts. In addition, Trophogemma colantonii n. sp. colonizing the abdomen and legs of the harpacticoid copepod Stenhelia sp. is described. The new species differs from the relative species for the less flattened cell body, the absence of both lateral bundles of tentacles and separate lateral tentacles as well as for the presence of longitudinal ribs along the cuticle. The data obtained in this survey give not only new important information on the taxonomy and distribution of Suctorea, but also new ...
Paper, 2022
Suctorian ciliates are common epibionts on marine and freshwater invertebrates. In the present study, three epibiont suctorian ciliate species, viz. Praethecacineta halacari Schulz, 1933, Thecacineta calix (Schroder, 1907), and Thecacineta cothurnioides Collin, 1909, are reported. Hence, P. halacari was observed on the ventral side of the idiosoma and legs of halacarid mite Copidognathus brachystomus Viets, 1940 and ventral side of Copidognathus tabellio (Trouessart, 1894). T. calix was reported on halacarid mite Maracarus gracilipes (Trouessart, 1889)-a new host species for the ciliate. T. cothurnioides was found on two different harpacticoid copepod specimens. The species T. cothurnioides is recorded from Turkish coast for the first time. T. calix is reported from Antalya for the first time. Finding of P. halacari is the first record for Izmir area. The data on distribution of all registered suctorian species are provided as well.
Acta protozoologica
Two "well-known" marine suctorian ciliates, Ephelota gemmipara (Hertwig, 1876) Bütschli, 1889 and Ephelota crustaceorum Haller, 1880, isolated from coastal waters near Qingdao (Tsingtao), China, were reinvestigated using both live observations and protargol impregnation methods. Based on the previous and the current studies, improved diagnoses for both species are supplied. A brief description of the asexual division process in Ephelota gemmipara is also presented, which can be summarized as follows: initially the basal bodies that give rise to the locomotor cilia in the transient larval (swarmer) stage appear to undergo multiplication before the budding process has commenced. The mastoid buds then develop in the apical region of the body, and one elongated branch of the parental macronucleus enters each bud. The buds undergo further development for several hours before eventually becoming swarmers which depart from the parent cell, swimming freely in the water.
Zootaxa, 2019
Epibiosis is common among ciliates and crustaceans because the calcified surface of the crustacean body offers a suitable site for colonization by the epibiont. Suctoria are among the most common epibiont ciliate groups of freshwater decapod crustaceans. The aim of this study is to increase knowledge of suctorians as epibionts of freshwater decapod crustaceans of the families Cambaridae and Pseudothelphusidae. Crustaceans were collected from three rivers and one pond in Chiapas, Mexico. Six species of suctorian epibionts were recorded: Acineta tuberosa, Podophrya maupasi, P. sandi, Tokophrya cyclopum, T. quadripartita and Trichophrya epistylidis. This is the first record of ciliate epibionts on members of family Pseudothelphusidae (represented by Phrygiopilus montebelloensis and Raddaus bocourti), and the first record of suctorians epibionts on Procambarus (Austrocambarus) sp. (Cambaridae).
Acta protozoologica
The living morphology and infraciliature of three heterotrichous ciliates from the north China sea, Condylostentor auriculatus , Condylostoma minutum Bullington, 1940 and C. spatiosum Ozaki and Yagiu in Yagiu, 1944, were investigated using protargol impregnation and in vivo observations. Based on the Qingdao population, an improved diagnosis of the poorly defined Condylostentor Jankowski, 1978 is suggested: free-swimming Stentoridae with deep, prominent vestibular cavity, apical boarder with conspicuous ventral groove; ciliature in Stentor-like pattern, i.e. ventral suture and contrast zone of somatic kineties present; adoral zone almost closed but interrupted on ventral side by a deep cleft, vestibulum kineties on vestibular cavity wall; paroral membrane present. A redescription of Condylostentor auriculatus, the type species, is also supplied. Condylostoma minutum is investigated for the first time using silver impregnation and an improved diagnosis is given based on three populations. New information about some details of the oral apparatus is supplied for a third species, Condylostoma spatiosum. characters can be used for species separation. Furthermore the infraciliature of many nominal species remains unknown thus the identification of these organisms is often difficult (Dragesco
Comparative Morphology of Dendrocometes paradoxus (Ciliophora, Suctorea) from two Distant Regions (Ukraine and Mexico) and Different Host Species. Dovgal I. V., Mayén-Estrada R. -Comparative analysis of Dendrocometes paradoxus Stein, 1852 cell morphology from various gammarid amphipod species in different regions of Ukraine, and those attached to several host body parts of Hyalella azteca collected in two Mexican lakes, was carried out in order to demonstrate the morphological variability, due to the hosts species or their geographical distribution. For hosts species and corporal distribution, no significant differences between the two populations were shown. As the result, it was found the suctorians common for amphipod crustaceans from Ukraine and Mexico all are conspecific and belong to D. paradoxus.
European Journal of Taxonomy, 2016
Generally, “ophrys- related” scuticociliates belong to a specialised group of ciliated protozoa that may act as commensals or pathogens of fishes and crustaceans. In the present study, four “ophrys- taxa” scuticociliates, i.e., Paramesanophrys typica gen. et sp. nov., Mesanophrys carcini (Grolière & Léglise, 1977) Small & Lynn in Aescht, 2001, Metanophrys sinensis Song & Wilbert, 2000, and Metanophrys similis Song et al., 2002, were collected from Chinese coastal waters or mariculture ponds and investigated. Paramesanophrys gen. nov. is assigned to the family Orchitophryidae and differs from its other genera mainly by the position of the paroral membrane relative to membranelle 1–3, i.e., the membrane extends anteriorly to the posterior end of membranelle 3. The type species P. typica gen. et sp. nov., is defined by an elongated body with the posterior end depressed where the caudal cilium is located; 20 or 21 somatic kineties; double-rowed membranelle 1 with eight to ten basal bodi...