Everettia subconsul (E. A. Smith, 1887)
“This species is very closely related to N. consul, and is only distinguished from that species by its duller upper surface, resulting from a different microscopic sculpture, and its slightly lesss convex whorls. The spiral striae on the base are visible under an ordinary lens, but the minute rugulose lines of the upper surface are discernible only under a stronger magnifier.” (E. A. Smith, 1887)
“The specimens obtained at Kina Balu exhibit a somewhat more distinct angulation upon the body-whorl than the type. Two examples from Mengalun Island are more thickened than the type; probably being older shells, and one of them is of a rich brown colour, the other of an olivaceus yellow tint.” (E. A. Smith, 1895)
“Both specimens are dead and immature shells. They resemble specimens collected by Everett on Kinabalu, and referred to this species by Smith. The larger specimen has Diam. Max. 14 mm. alt. 8 mm. Both are definitely shouldered at the periphery, and like other Kinabalu specimens seem to me to differ from the type of subconsul in the British Museum in this respect.” (Laidlaw, 1937)
“Originally described as a Xesta from a single specimen in 1895, this species apparently has never been found again. The specimen before me seems to correspond perfectly to the original description; it is, however, much larger, with a greater diameter of 29.9 mm. and 6½ whorls, whereas the type is said to have a greater diameter of only 19 mm. and 5 and a fraction whorls. Kobelt, who dealt with this species in 1900, hints that the type is not quite adult, a suggestion apparently corroborated by the specimen in my hands.” (Haas, 1951)
“Diagnostic characteristics: This is a smooth-shelled species with its mantle covered by regularly spaced radial darker brown bands at the last half whorl. All the other species with similar mantle markings from Sabah have distinct sculpture above the periphery. Everettia subconsul differs from Everettia layanglayang in animal colour and mantle markings.” (Liew et al., 2009)
“Remarks: Some of the immature specimens from this species have a keeled shell as does Everettia themis, but Everettia subconsul has a more rounded lower periphery than E. themis. The populations in the interior of Sabah, the west coast, and at higher elevations have a small and rounded-periphery shell. It is not possible to differentiate the typical lowland E. subconsul and highland Everettia layanglayang from the shell alone. Nevertheless, we decided that the type specimen of E. subconsul is identical to the
Everettia species that is common throughout the lowlands of Sabah. The type locality – north Borneo, had not been specified by either Whitehead (1893) or Smith (1887b). According to the report of Whitehead (1893), the attempt to climb Mount Kinabalu was not successful until the end of January 1888. The type was collected by Whitehead during his Exploration of Mount Kinabalu between 1885 and 1887; and described by Smith (1887b). Thus, we presume that the type specimen was collected during his second failed attempt to Mount Kinabalu, in the Melangkap area where the elevation does not exceed 1200 m. However, E. layanglayang can only be found above 1800 m.” (Liew et al., 2009)
E. A. Smith (1855) original descriptions on Nanina subconsul – “Testa N. consuli simillima, superne tamen minus nitida; anfractibus Paulo planioribus instructa, sculptura minutissime rugulosa superne ornate, inferne spiraliter microscopice striata.”
Liew et al. (2009) descriptions on Everettia subconsul – “Shell: large, rather thin, yellowish brown. Spire moderately to distinctly elevated, outer whorls slightly shouldered below the suture. Periphery slightly shouldered to almost rounded, more distinctly angular in juveniles. Above the periphery, shell silky with very weak (but distinct) oblique wrinkling, slightly stronger towards the suture. Amongst this wrinkling, very fine granulation [40x magnification (magn.)] is arranged obliquely, sometimes with inconspicuous spaced spiral grooves. Below the periphery, shell has fine, densely placed spiral grooves. …number of whorls up to six and a half…”
“Animal: black bands on either side of tentacles, which are divided by a white band that occupies the space between eye tentacles, and extends backward to the end of mantle and downward to just below the eye tentacles. Other parts of the animal are covered by regularly spaced oblique dotted belts. The mantle is covered by brown irregular markings and followed by regularly spaced radial darker brown bands at the last half whorl.” (Liew et al., 2009)
“Genitalia: maximum length from genital opening to the end of dart-sac (before the visible gland tubules) up to 16 mm. The penis, dart-sac, and vagina very thin with thick muscular wall. Penis, vagina, genital opening, bursa copulatrix, and dart-sac arranged around the short genital atrium, with limited space between the opening of each of the genitalia structures. Short bursa copulatrix about one-quarter to one-third of total dart-sac length.” (Liew et al., 2009)
Shell height – 10.5 mm; Shell width – 17-19 mm.
Everettia subconsul – “Height up to 18 mm; width up to 32.5 mm; diameter of each of the first three whorls is 0.9–1.0 mm; height aperture up to 12.5 mm; width aperture up to 15.5 mm. Width: height ranges from 1.63 to 1.76 (Danum) or 1.75 to 1.90 (Kinabatangan) .” (Liew et al., 2009)
Type locality – “North Borneo” leg. J. Whitehead (E. A. Smith, 1887)
Other locality – “Lumu-Lumu, Kinabalu, 5,500 feet” F. N. Chasen and H. M. Pendleburry /Apr. 1929 (Laidlaw, 1937); “Kinabatangan District, East Coast Resideney, North Borneo, from the southeast end of Dewgurst Bay.” Leg. D. D. Davis & R. F. Inger/June 2, 1950 (Haas, 1951); “Sabah; Imbak Valley” (Liew et al., 2009); “Sabah; Meliau Range, 100-650 m (alt.)” (Liew et al., 2009); “Sabah; Danum Valley” (Liew et al., 2009); “Sabah; Tabin Wildlife Reserve” (Liew et al., 2009); “Sabah; Crocker Range, 1420 m (alt.)” (Liew et al., 2009); “Sabah; Crocker Range, Kimanis, 300-1200 m (alt.)” (Liew et al., 2009); “Sabah; Crocker Range, Melalap, 480 m (alt.)” (Liew et al., 2009); “Sabah; Crocker Range, Inobong” (Liew et al., 2009); “Sabah; Crocker Range, Sugud Forest Reserve” (Liew et al., 2009); “Sabah; Crocker Range, Kg. Langsat, 200 m (alt.)” (Liew et al., 2009); “Sabah; Crocker Range, Kiansom” (Liew et al., 2009); “Sabah; Crocker Range, Mahua, 1200 m (alt.)” (Liew et al., 2009); “Sabah; Crocker Range, Ulu Megindanau, 130 m (alt.)” (Liew et al., 2009); “Sabah; Crocker Range, Ulu Liawan” (Liew et al., 2009); “Sabah; Crocker Range, Melangkap Tomis” (Liew et al., 2009); “Sabah; Crocker Range, Nalapak” (Liew et al., 2009); “Sabah; Crocker Range, Ulu Membakut” (Liew et al., 2009); “Sabah; Kinabatangan, Bod Tai, 100 m (alt.)” (Liew et al., 2009); “Sabah; Kinabatangan, Keruak, 43-50 m (alt.)” (Liew et al., 2009); “Sabah; Kinabatangan, Ulu Sungai Resang” (Liew et al., 2009); “Sabah; Kinabatangan, Pangi, 100 m (alt.)” (Liew et al., 2009); “Sabah; Kinabatangan, Batu Tomanggong Besar, 50 m (alt.)” (Liew et al., 2009); “Sabah; Kinabatangan, Batu Materis, 36 m (alt.)” (Liew et al., 2009); “Sabah; Kinabatangan, Batu Tai, 70 m (alt.)” (Liew et al., 2009); “Sabah; Kinabatangan, Bukit Mawas, 14-30 m (alt.)” (Liew et al., 2009); “Sabah; Kinabatangan, Sukau, 50 m (alt.)” (Liew et al., 2009); “Sabah; Kinabatangan, Gomantong” (Liew et al., 2009); “Sabah; Kinabatangan, Tandu Batu, 20 m (alt.)” (Liew et al., 2009); “Sabah; Kinabatangan, Batu Pangi, 20 m (alt.)” (Liew et al., 2009); “Sabah; Kota Kinabalu, Gaya Island” (Liew et al., 2009); “Sabah; Kota Kinabalu, Universiti Malaysia Sabah” (Liew et al., 2009); “Sabah; Kota Kinabalu, Karambunai” (Liew et al., 2009); “Sabah; Kudat zone, Banggi Island, 50 m (alt.)” (Liew et al., 2009); “Sabah; Kudat zone, Balambangan Island” (Liew et al., 2009); “Sabah; Kudat zone, Kp. Magnin, 239 m (alt.)” (Liew et al., 2009); “Sabah; Mount Kinabalu, Serinsim, 200 m (alt.)” (Liew et al., 2009); “Sabah; Mount Kinabalu, Poring, 660 m (alt.)” (Liew et al., 2009); “Sabah; Mount Kinabalu, Sayap, 1000-1496 m (alt.)” (Liew et al., 2009); “Sabah; Mount Tambuyukon, eastern slope, 896-1144 m (alt.)” (Liew et al., 2009); “Sabah; Mount Nombuyukon, north-eastern slope, 452-1380 m (alt.)” (Liew et al., 2009); “Sabah; Telupid, Mount Tawai” leg. Vermeulen (Liew et al., 2009)
“Distribution and habitat: Primary forest, up to 1400 m alt. Sabah: west coast, east coast, and interior area. Danum Valley, Kinabatangan, Crocker Range, Pulau Banggi, Kota Kinabalu.” (Liew et al., 2009)