Bostryx tortoranus (Doering, 1879) species complex (Gastropoda: Stylommatophora: Bulimulidae), a review of taxonomy and distribution of endemic species from Argentina Author Miranda, María José text Journal of Natural History 2014 2015-01-06 49 17 - 18 995 1022 http://dx.doi.org/10.1080/00222933.2014.981313 journal article 6514 10.1080/00222933.2014.981313 9a8b6684-f12b-4ea1-8c30-63cdc8539ff1 1464-5262 4631617 Genus Bostryx Troschel, 1847 Type species Bulimulus ( Bostryx ) solutus Troschel, 1847 (original designation by monotypy). Remarks This genus can be characterized as having a protoconch with axial costules or wrinkles, with numerous fine spiral grooves well marked and densely arranged. Penial retractor muscle inserted in terminal portion of phallic complex. Flagellum inner wall with diagonal folds converging at a central longitudinal fold. Epiphallus divided into proximal thin and wider distal portion. Penis divided by a thin area into proximal swollen portion 1/3 of total penis length and distal cylindrical portion, ¾ of total penis length. Penis proximal portion with inner penis gland and two different sculptures in the inner wall. Penial sheath muscular overlapping more than half portion of penis with retractor muscle inserted in its proximal end. Bursa copulatrix duct divided into proximal thin and wider distal portion.