The parasite Schistosoma mansoni, which Biomphalaria snails carry, infects about 83.31 million people worldwide.

[4] The shell of this species, like all planorbids is sinistral in coiling, but is carried upside down and thus appears to be dextral.

Biomphalaria tenagophila was originally discovered and described under the name Planorbis tenagophilus by the French naturalist Alcide d'Orbigny in 1835.

But Orbigny himself later limited its distribution to Ensenada, Buenos Aires Province, Argentina in 1837.

[3][10] The non-indigenous distribution of Biomphalaria tenagophila includes a hypothermal spring near Răbăgani, Romania (46°45´1.3´´N, 22°12´44.8´´E).

The flat shells are yellow-brown, discoidal, deeply and symmetrically biconcave, and consist of 5 or 6 slowly increasing whorls.

[11] The specific characteristics of the reproductive system of Biomphalaria tenagophila are: more than 200 diverticulae of the ovotestis; 7–11 main lobes of the prostate; and presence of vaginal pouch.