 The genitalia are exceedingly lengthened in "Ringicella".The genitalia are of the haplogonous type, the long slender penis passing into a long vas deferens, upon which the penis retractor muscle is inserted; the duct of the globular spermatheca is extremely long.The elongation of the whole genital system is greater than in Helicoid snails generally, and doubtless correlated with the unusual length of the last whorl.