Visual System in a Lizard 
89 
FIGURE 6 
I 
LEFT I 
I 
RIGHT 
nucleus basal optic tract 
tectum 
pretectum 
dorsal thalamus 
ventral thalamus 
hypothalamus 
Figure 6. Schematic illustration of projections of retina of Tegu lizard, Tupinambis nigropunctatus. Six 
regions on the right side of the brain receive fibers from the left eye, while four regions on the left side of 
the brain receive fibers from the left eye. The contralateral projections are heavier than the ipsilateral ones. 
DL, Nucleus dorsolateralis 
DM, Nucleus dorsomedialis 
dp, Dorsal peduncle of the lateral forebrain 
bundle 
E, Nucleus entopeduncularis 
fr, fasciculus retroflexus 
GLD, Nucleus geniculatus lateralis dorsalis 
GLV, Nucleus geniculatus lateralis ventralis 
GLV, Nucleus geniculatus lateralis ventralis 
pars ventralis 
GP, Nucleus geniculatus pretectalis 
he. Habenular commissure 
HL, Nucleus habenularis medialis 
I, Nucleus interstitialis 
LE, Nucleus lentiformis thalami pars extensa 
Ifb, Lateral forebrain bundle 
LHA, Lateral hypothalamic area 
LM, Nucleus lentiformis mesencephali 
LP, Nucleus lentiformis thalami pars plicata 
LPA, Lateral preoptic area 
M, Nuclei mammillares 
MA, Nucleus medialis pars anterior 
MC, Nucleus medialis pars centralis 
ML, Nucleus mammillaris lateralis 
MM, Nucleus mammillaris medialis 
MPA, Medial preoptic area 
NA, Nucleus anterior hypothalami 
NAG, Nucleus of the anterior commissure 
NF, Nucleus of the medial longitudinal 
fasciculus 
NPT, Nucleus pretectalis 
NSM, Nucleus of the stria medullaris 
0, Nucleus ovalis 
ot. Optic tract 
OTE, Optic tectum 
PA, Nucleus paraventricularis 
pc. Posterior commissure 
PD, Nucleus posterodorsalis 
PH, Nucleus periventricularis hypothalami 
PM, Nucleus pretectalis medialis 
