Monopeltis sphenorhynchus, also known commonly as Maurice's slender worm lizard, Maurice's spade-snouted worm lizard, and the slender spade-snouted worm lizard, is a species of amphisbaenian in the family Amphisbaenidae.

M. sphenorhynchus is found in Botswana, Mozambique, and South Africa.

[1] The preferred natural habitats of M. sphenorhynchus are deep sand and alluvial soil.

[3] Slender and medium-sized for the genus, adults of M. sphenorhynchus usually have a snout-to-vent length (SVL) of 20–30 cm (7.9–11.8 in).

The body is uniformly pink, both dorsally and ventrally.