i/|8 
The Irish Naturalist. 
August, 
The bulbs were being examined for Tylenchus devastatrix, 
the eelworm that causes a large amount of damage to 
onions, Narcissus bulbs, oats, and clover. The other five 
species are free-living Nematodes ; they live mainly on 
decaying vegetable matter, and can be found in the soil. 
They were found in the damaged parts of the bulbs, living 
on the material destroyed by the Tylenchus. They are 
worth recording, as I can find no previous record of their 
occurrence in Ireland in any literature to which I have 
access. 
Fig. I, Cephalobus striatus, head ; fig. 2, tail (after De Man). Magnified. 
A short description, distinguishing the main characters 
of each species, is given below, but for a more detailed 
description, those interested are referred to the memoirs 
mentioned at the end of the paper. 
Cephalobus striatus Bastian. — This is a small short worm, 
rather stout in comparison to its length, about -55 mm. 
long, with a very blunt tail end (fig. 2) ; the cuticle is striated 
in some parts ; the mouth has no dart, but there are a 
number of thickenings in the walls of the gullet (see fig. i). 
The vulva is about one-third of the body-length from the 
the tail end ; they are rather sluggish worms, and may be 
easily examined alive. 
