Indotyphlus

Key to the species of Indotyphlus

The following key is based on readily observable annulation characters. At least adults of the two species should also be distinguishable on examination of the region surrounding the vent, which in I. maharashtraensis has a smoother, depressed preanal strip (longer in males).

1 More than 130 primary annuli, with secondary grooves restricted to the posteriormost part of the body, not on the anteriormost 100 primaries ................................. battersbyi

­ May have fewer than 130 primary annuli, with secondary grooves on more than the posteriormost part of the body, beginning anterior to the 100th primary annulus......... ............................................................................................................ maharashtraensis