Orb., 1835[1] Bulimulus tenuissimus is a species of tropical air-breathing land snail, a pulmonate gastropod mollusk in the subfamily Bulimulinae.

The native distribution of Bulimulus tenuissimus includes: The non-indigenous distribution includes: The shell is perforate, ovate-conic, very thin, pellucid, scarcely shining, obsoletely and closely decussated by growth striae and delicate spiral lines.

[5] The shell has six whorls that are slightly convex, increasing with moderate rapidity.

[5][6] The reproductive biology of this species was studied by Silva et al. (2008):[2] These hermaphroditic snails mate and cross-fertilization normally occurs.

[6] Bulimulus tenuissimus is a host for a trematode of the genus Postharmostomum (family Brachylaimidae).