[1] The mantle has more highly thickened margins and more glandular epithelium than in the genusAnostoma, extending throughout the body whorl of the shell to the region adjacent to the aperture.

The ureter bends sharply upon itself at the termination of the mantle cavity, and, dorsally placed with reference to this chamber, proceeds anteriorly to unite with the forward extremity of the kidney.

The hermaphroditic duct extends ventrally, close to the columella, and shortly before entering the accessory glands it attaches to a slender pear-shaped organ, possibly a seminal vesicle, consisting of upwards of ten small diverticula imbedded in a muscular sheath.

As in Anostoma, the duct from the seminal receptacle springs from this point, and, as a slender canal, proceeds to the spacious sack situated in close proximity to the accessory glands.

The vas deferens, likewise, unites with the penis some distance from its distal extremity, thus forming a flagellum.