http://elegans.swmed.edu/parts/neurodata.txt
The neuronal connectivity data for C. elegans had been assembled by J. G. White, E. Southgate, J. N. Thomson, S. Brenner from 5 animals (N2T, JSH [L4 male], N2U [adult hermaphrodite], N2Y [adult male], JSE [L4 hermaphrodite]) and was later revisited by R. M. Durbin. For each neuron, the results originally obtained and published by White et al can be seen in MoW as:
1- connectivity diagrams (for nerve ring and RVG region synapses),
2- tables (for synapses in ventral cord).
[the total number of synapses for each neuron = synapses in the diagram + synapses listed in the table].
Results obtained by R. Durbin are reviewed in his thesis.
Also, revised and tabulated data for each neuron's connectivity in the nerve ring and RVG regions (from N2U and JSH animals) was provided by Durbin which can be seen as a text list at http://elegans.swmed.edu/parts/neurodata.txt (directions about this text list are provided below) as well as in Wormbase on individual neuron ("cell") pages [the total number of synapses for each neuron = synapses in the Durbin list or WB table + synapses listed in the MoW table].
It must be noted however, there is more extensive data available as handwritten notes/graphics from White et al group which are currently kept as part of the Wormatlas physical archive in AECOM.
The instructions below is reproduced from http://elegans.swmed.edu/parts/neurodata_readme.txt:
This directory contains a file
neurodata.txt
which is a tab delimited Unix ASCII text file containing the synaptic
connectivity data from two electron microscope reconstructions of the
nerve ring, N2U and JSH. These are data collected by John White,
Eileen Southgate, Nichol Thomson and Sydney Brenner (White et al, Phil
Trans Roy Soc B 314:1-340, 1986). The data in the file are not
exactly those in the paper -- when they were entered various
inconsistencies were found and corrected. Also the paper used data
from other reconstructions in areas outside the ring and RVG, which
are not represented here.
The columns in the file are:
<neuron 1>
<neuron 2>
<synapse type> see below
<reconstruction> one of JSH, N2U
<number of synapses>
The synapse type is one of
Gap_junction direction is not visible here
Send unambiguous chemical synapse from neuron 1 to neuron 2
Send_joint chemical synapse from 1 where 2 is a possible or
shared recipient
Receive unambiguous chemical synapse 2 to 1
Receive_joint chemical synapse from 2 where 1 is a possible or
shared recipient
See the paper for discussion of the joint type synapses (they may be
called "multiple" there).
I think N2U was a hermaphrodite adult and JSH an L4 male, but do not
rely on the differences being sex or stage specific: there is likely
to be equally as much random difference between animals; you will be
able to see thyere are significant differences between bilaterally
symmetric sides.
Richard Durbin 980225