Protozoa Guide review

METACYSTIDAE

family / PROSTOMATIDA / METACYSTIDAE

Description

Sessile in pseudochitinous or gelatinous lorica; all somatic kineties bipolar; paratenes conspicuous; perioral ciliature composed of several rings of ciliature ; often with prominent caudal cilia; three genera. b 9 6> t;? 1. Body tapered at rear .. .... ........ .. .... .. ........ .. ....... 2 1'. Body cylindrical ................ ..... ... ... Metacystis 2. Oral dikinetid kinetosomes not surrounding internal nematodesmal ring ...... . Pelatractus 2'. Oral dikinetid kinetosomes surrounding internal nematodesmal ring ........ .. .. .. Vasico/a

Type species

Figures

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Raw text

Sessile in pseudochitinous or gelatinous
lorica; all somatic kineties bipolar; paratenes
conspicuous; perioral ciliature composed of
several rings of ciliature ; often with prominent
caudal cilia; three genera.
b
9 6> t;?
1. Body tapered at rear .. .... ........ .. .... .. ........ .. ....... 2
1'. Body cylindrical ................ ..... ... ... Metacystis
2. Oral dikinetid kinetosomes not surrounding
internal nematodesmal ring ...... . Pelatractus
2'. Oral dikinetid kinetosomes surrounding
internal nematodesmal ring ........ .. .. .. Vasico/a