Sub-order Isolaimiina Inglis, 1983
Rev. 
08/03/20
Andrassy (2009) asserts that the root of Isolaimium is 
Isloaimi.  The root is de3termined by removing the Latinized ending "um" 
from Isolaimium. Then appropriate ennings are added to the root to designate 
different taxonomic levels. Consequently, the correct names of the Order, Sub-order, 
Superfamily and Family are, respectively, Isolaimiida, Isolaimiina. 
Isolaimioidea and Isolaimiidae and not Isolaimida, Isolaimina. Isolaimoidea and 
Isolaimidae as used by several authors.
	
		
    - 
    
long and very slender; 
    2-7 mm long  
  - 
    
cuticle longitudinally striated; may have punctations, most obvious on tail in 
    longitudinal and transverse rows  
	- 
    
lip region simple, rounded; lips 
	amalgamated  
	- 
    
three circles of labial sensilla: six 
	round openings surrounded by six outer labial papille and four minute 
	cephalic papillae.  
  - 
  
amphids 
  apertures very small and pore-like  
  - 
  
stoma a long sclerotized tube occupying 
  30% of length of esophageal region; triradiate, thickened walls anteriorly  
	- 
    
esophagus muscular, cylindrical, 
	slightly widened posteriorly; cardia large and tongue shaped  
  - 
  
females dioavial, amphidelphic, with ovaries sometimes reflexed; 
  vulva a transverse slit  
  - 
  
male testes paired  
  - 
  
male   spicules thick, gubemaculum small, 
  thin  
	- 
    
male with 1-14 ventro-median supplements 
	and sometimes paired preclocacal ventro-median papillae  
  - 
  
tails in both sexes short, 
	bluntly rounded 
  with pointed tips, sometimes 
	conoid  
  - 
  
large, paired caudal papillae on male tail; small paired 
  papillae on female tail  
  - 
  
mainly inhabitants of undisturbed sandy soils.  
 
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		Isolaimium nigeriense: anterior body from Timm, 1969 | 
	
References:
Andrassy, I. 2009. Free-living Nematodes of Hungary (Nematoda 
Errantia) Vol. 111. Humgarian Natural History Museum, Budapest. 508p.
Timm, R.W. 1969. The Genus Isolaimium Cobb, 1920 (Order 
Isolaimida, Isolaimiidae New Family). Journal of Nematology 1:97-106.
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