The original reading of "anfractus superne ventricosi" was "abdomen superne ventricosius". The erroneous reference to Gaultieri was not at first attached to the description. The species of the Museum was evidently distinct from that of the 'Systema.'
H. glauca. H. subrotunda acuminata, labro postice marginato.
H. citrina. H. umbilicata convexa obtusa.
The final remark was an afterthought.
H. arbustorum. H. marginata perforata convexo-acuminata, ore suborbiculari, margine duplici, antice elongato.
"Faun. Suec. 1295" was the only synonym; the work of Lister on English Conchology not having been at first known to Linnæus.
H. ungulina. H. marginata perforata spiralis convexa, ore suborbiculato.
The "Gualt." was a misprint for the written "Rumph."
H. lutaria. H. ovata-oblonga umbilicata, interne coloratiore.
"Habitat frequens in lutosis fluviis, lacubus." May not the Valvata piscinalis be the shell intended?