About Latia neritoides Gray, 1850
This section describes the shell of Latia neritoides Gray, 1850. The maximum shell dimensions are 11 mm in length, 8 mm in width, and 4.5 mm in height. One measured individual with an 8.5 mm length has a 6 mm width and 3 mm height. The shell is semiovate, thin, fragile, almost smooth, brown, and semitransparent. Its sculpture is made up of microscopic, relatively distant radiate striae and fine, dense concentric growth lines. Shell colour ranges from pale to dark brown; the interior is dark brown at the centre, and the lamina is white. The apex is positioned posteriorly, extending slightly beyond the shell margin, and has a 1-whorl spiral nucleus that is visible on the right side. The apex is most often located on the left side, but sometimes sits near the middle of the posterior margin. The aperture is large and oval, with a thin, sharp margin that is typically rounded. Occasionally, the posterior portion of the aperture margin is straightened, forming more or less distinct angles with the lateral sides, which may themselves become almost straight. The inside of the shell is polished. The left attached end of the lamella sits near the middle of the left shell margin, while the right free end does not extend past the posterior third of the shell's total length. This species is endemic to the North Island of New Zealand. This limpet species inhabits clean running streams and rivers.
