""'Bostryx longispira " "'is a species of tropical air-breathing land snail, a pulmonate gastropod mollusk in the family Bulimulidae.
12.
It is possible that this variation can also be found in the populations at the localities in La Libertad, in which case " Bostryx turritus tamboensis " should be considered a synonym of the nominate taxon.
13.
Finally, it may be compared to " Bostryx delicatulus " ( Philippi, 1867 ) from which it differs by ( 1 ) being stouter, ( 2 ) the brownish upper whorls and ( 3 ) the simple peristome.
14.
Weyrauch, 1967, a species living at higher altitudes in the same R�o Ca�ete valley . " Bostryx granulatus " however, may be distinguished by the slightly expanded base of the lip, the more slender shell shape and the granulation on the last whorl.
15.
"Bostryx fragilis " is closely allied to " Bostryx juana " ( Cousin, 1887 ) from which it differs by ( 1 ) being smaller, ( 2 ) slightly more slender and ( 3 ) lacking the tawny-brown spiral bands . " Bostryx fragilis " further resembles " Bostryx alausiensis " ( Cousin, 1887 ), also described from southern Ecuador.
16.
"Bostryx fragilis " is closely allied to " Bostryx juana " ( Cousin, 1887 ) from which it differs by ( 1 ) being smaller, ( 2 ) slightly more slender and ( 3 ) lacking the tawny-brown spiral bands . " Bostryx fragilis " further resembles " Bostryx alausiensis " ( Cousin, 1887 ), also described from southern Ecuador.
17.
"Bostryx fragilis " is closely allied to " Bostryx juana " ( Cousin, 1887 ) from which it differs by ( 1 ) being smaller, ( 2 ) slightly more slender and ( 3 ) lacking the tawny-brown spiral bands . " Bostryx fragilis " further resembles " Bostryx alausiensis " ( Cousin, 1887 ), also described from southern Ecuador.
18.
"Bostryx fragilis " is closely allied to " Bostryx juana " ( Cousin, 1887 ) from which it differs by ( 1 ) being smaller, ( 2 ) slightly more slender and ( 3 ) lacking the tawny-brown spiral bands . " Bostryx fragilis " further resembles " Bostryx alausiensis " ( Cousin, 1887 ), also described from southern Ecuador.
19.
Zilch ( 1953 ) reports " Bostryx turritus turritus " ( shell height / shell width = 3.25 ) from Hacienda El Casa Grande ( probably near 07?0 S 078?0 W ) in La Libertad Region, and described " Bostryx turritus tamboensis " ( shell height / shell width = 2.87 ) from the same locality, albeit from different elevations ( 1500 m resp . 1000 m ).
20.
Zilch ( 1953 ) reports " Bostryx turritus turritus " ( shell height / shell width = 3.25 ) from Hacienda El Casa Grande ( probably near 07?0 S 078?0 W ) in La Libertad Region, and described " Bostryx turritus tamboensis " ( shell height / shell width = 2.87 ) from the same locality, albeit from different elevations ( 1500 m resp . 1000 m ).
