UNC-55 L1 Color Code May 1988

DHH; May 2010

This animal was probably studied by Leon Nawrocki and John White (see Walthall, J. Neurobiol. 21: 1085-91,1990). It presents a rather complete thin section series of the more posterior portions of the ventral cord and dorsal cord of an L1 animal. Every other section was photographed as available, at 10,000X.

Color codes are following a page in MRC green notebook #7. MRC staff used commissure positions to match axons on the two sides, and link one color code to the other; it is unlikely that they actually traced any commissures – which would be very difficult.

Interneuron codes are taken from three charts in MRC blue notebook Z.

Color in Color in Print numbers where

Cell name Ventral Cord Dorsal Cord Comm seen (VC/DC)

DA2 24 9 not seen/8 RH side

DA3 26 5 224/228 LH

DA4 33 7 392/337 LH

DA5 35 8 564/572 LH

DB3 32 2 5/8 RH

DB4 37 12 278/262 LH

DB5 40 16 507/518 LH

DD2 6 3 not seen/8 RH

DD3 34 11 285/274 RH

DD4 38 14 518/538 RH

AVAL 14

AVAR 7

AVBL 15

AVBR 16