Everettia monticola Liew, Schilthuizen & Vermeulen 2009
“Diagnostic characteristics: This species is without distinct characteristics on the shell, except for the moderately elevated spire, in which it differs from other Everettia species of similar size.” (Liew et al., 2009)
“Remarks: The shell of this species is similar to E. robusta, which was described from Borneo (Gude, 1917). However, it is impossible to determine where in Sabah (if at all) the type was collected.” (Liew et al., 2009)
Liew et al. (2009) descriptions on Everettia monticola – “Shell: medium-sized, rather thin, brownish, spire moderately elevated, outer whorls shouldered below suture. Periphery rounded. Above the periphery, smooth but sometimes with irregularly placed oblique wrinkling that is slightly stronger towards the suture. Below the periphery, shell is with or without fine, shallow spiral grooves. …number of whorls up to five…”
“Animal: black bands on either side of the tentacles, which are separated by a white band that occupies the space between the eye tentacles and extends backward to the end of the mantle and downward to the foot fringe, although in some animals, the head around the tentacles is uniformly black but a white band appears near the end of mantle. Other parts of the animal are covered by regularly spaced oblique dotted belts or a grey smear. The mantle is brownish or greyish and in the last half whorl with sparse irregular black and bright markings.” (Liew et al., 2009)
“Genitalia: maximum length from genital opening to the end of dart-sac (before the visible gland tubules) up to 7 mm. The penis and dart-sac have thin muscular walls, and vagina has very thin transparent wall. P, V, GO, BC, and DS arranged around the short genital atrium, with limited space between the openings of each of the enital structures. BC long, almost same length as dart-sac.” (Liew et al., 2009)
Everettia monticola – “Height up to 7.0 mm; width up to 11.9 mm; diameter of the first three whorls 0.7, 0.5, and 1.0 mm, respectively; height aperture up to 5.4 mm; width aperture up to 6.5 mm.” (Liew et al., 2009)
Type locality – “Sabah: Kota Belud District, Southern part of Kinabalu Park. Near ‘Villosa Shelter’ at 2900 m alt. along the Summit trail of Mount Kinabalu (6°3’N, 116°33’E)” leg. Tachani/Oct. 2003 (Liew et al., 2009)
Other localities – “Sabah; Mount Trusmadi, 1600 m (alt.)” (Liew et al., 2009); “Sabah; Crocker Range, Ulu Kimanis, 1200 m (alt.)” (Liew et al., 2009); “Sabah; Crocker Range, Mahua, 1000 m (alt.)” (Liew et al., 2009); “Sabah; Kinabatangan, Batu Tomanggong Kecil” (Liew et al., 2009); “Sabah; Meliau Range, 640-650 m (alt.)” (Liew et al., 2009); “Sabah; Mount Kinabalu, southern slope, 1552-2156 m (alt.)” (Liew et al., 2009); “Sabah; Mount Kinabalu, western slope, 1152-2480 m (alt.)” (Liew et al., 2009); “Sabah; Mount Kinabalu, southern slope, Mesilau” (Liew et al., 2009); “Sabah; Mount Tambuyukon, eastern slope, 1144-1880 m (alt.)” (Liew et al., 2009); “Sabah; Mount Nombuyukon, North-eastern slope, 1070-1680 m (alt.)” (Liew et al., 2009)
“Distribution; Sabah: Crocker Range, Trusmadi Range, Mount Kinabalu.” (Liew et al., 2009)
“Habitat: Tropical lowland and montane primary forest 700–2500 m (common between 1000–1500 m).” (Liew et al., 2009)