Protozoa Guide review

HETEROTRICHIDA

order / HETEROTRICHIDA

Description

Somatic dikinetids, when singly ciliated , usually with anterior kinetosome ciliated ; left serial oral polykinetids used to locomote and feed ; alveolar membrane system poorly developed; many species contractile ; cytopyge present; contractile-vacuolar system with collecting canals and large collecting vacuole or absent; some species are pigmented , often brightly , with pigment in specialized pigmentocysts ; seven families . 414 CILIOPHORA, HETEROTRICHEA 1. Always loricate ; bear serial oral po 1'. If loricate , body n 2. Single somatic kinety surface; body dorso ............... ... 2' . Somatic kineties ev surfaces ; if compr but laterally ..... Fremiet , 1937 . aloricate; contracti 3'. Body shape otherwise 4. Body lateral spindle-shaped ; not . . . . . . . . . . 4'. Body shape otherwise 5. Body large , sle contractile; oral ca ~ 5'. Oral cavity deeper w roestensis , top . (from Uhlig , 1964) 6. Serial oral polykine margin ; peristomal paroral cilia .. ... 6'. Serial left oral pol peristomal field ...

Type species

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Raw text

Somatic dikinetids, when singly ciliated , usually
with anterior kinetosome ciliated ; left serial oral
polykinetids used to locomote and feed ; alveolar
membrane system poorly developed; many species
contractile ; cytopyge present; contractile-vacuolar
system with collecting canals and large collecting
vacuole or absent; some species are pigmented ,
often brightly , with pigment in specialized
pigmentocysts ; seven families .
414 CILIOPHORA, HETEROTRICHEA
1. Always loricate ;
bear serial oral po
1'. If loricate , body n
2. Single somatic kinety
surface; body dorso
............... ...
2' . Somatic kineties ev
surfaces ; if compr
but laterally .....
Fremiet , 1937 . aloricate; contracti
3'. Body shape otherwise
4. Body lateral
spindle-shaped ; not
. . . . . . . . . .
4'. Body shape otherwise
5. Body large , sle
contractile; oral ca
~ 5'. Oral cavity deeper w
roestensis , top . (from Uhlig , 1964)
6. Serial oral polykine
margin ; peristomal
paroral cilia .. ...
6'. Serial left oral pol
peristomal field ...