Some New or Lnttle Known Oligocheeta. 41 
SomME New ZEALAND ENCHYTRAIDA. 
I am indebted to Mr W. W. Smith for two tubes containing 
Enchytreids. The only record, so far as I am aware, of the 
existence of this family in New Zealand is a mere notice by 
myself contained in a paper upon the development of an 
earthworm. I am now for the first time able to describe 
more accurately the species which are met with in New 
Zealand,—those forwarded to me by Mr Smith were sexually 
mature. One of these species proves to be new, and is 
described below as Fridericia antarctica ; the other is the 
well-known Henlea ventriculosa. The latter was collected 
at the edge of a swamp near the Tengawai river, South 
Canterbury. I have been able to make sure that it is the 
species mentioned above, as I have been able, through the 
kindness of Dr Michaelsen, to examine specimens identified 
by him as Henlea ventriculosa. So many writers have 
dealt with the structure of this Enchytreid, including Dr 
Michaelsen himself, that I have not found myself able to 
add anything to our knowledge of its anatomy. I can 
confirm, especially with regard to the salivary glands, Dr 
Michaelsen’s statements. I received a few years since, through 
the kindness of Mr Bateson, examples of this same worm 
which he collected in his expedition to the territory of the 
Khirgese Tartars. The species has therefore a very wide range. 
1V. Fridericia antarctica. 
Of this species I have examined a number of examples col- 
lected at the edge of a spring near Ashburton, New Zealand. 
The colour of the worm during life is stated to have been a 
“pale pink.” It isa long thin Enchytreid, consisting of 46-63 
segments. The following figures relate to three specimens 
which I selected for measurement and external description :— 
Length, Number of Segments. 
A, 18 mm. 63 
B. 15 mm. 47 
C. 16 mm. 45 
The sete are 4-6 in each bundle, generally 4 or 6, occa- 
sionally 5. The innermost pair were, as is usual with this 
