Phaedusa kelantanensis (Sykes, 1902)
“Related to C. filicostata, Stol., and C. kapayanensis, de Morgan; from the latter it may readily be separated by its size, and from the former, in addition to the characters of the plicae and lamellae, the much larger protoconch will readily separate it. The specimens were collected with C. filicostata.” (Sykes, 1902)
“Meine Stücke sind etwas grösser, 5.5:33 mm. Statt 5:31.9, und haben 12-12½ Windungen statt 11-11½, stimmen aber sonst völlig zu Sykes' Beschreibung. Von filicostata Stol. ist die Form durch die schlankere Gestalt, die gedrängteren, runzeligen Rippenstreifen und deutlichen, wenn auch fast mikroskopischen Spirallinien unterschieden. Ich bezweifle, dass sie mehr ist als eine Lokalrasse von filicostata, was durch eine Form von Perak bestätigt wird. Nach Sykes kommt auch typische ßlicostata in Kelantan vor; sie hat mir nicht vorgelegen.” (Möllendorff, 1902)
“I have to thank Mr. E. R. Sykes for very kindly examining these shells, all of which, excepting one, he considers to be a variety of this species. He further informs me that the shells which he recorded from Kelantan as C. filicostata, Stol., are really very close to this variety, and that he was wrong in referring them to C. filicostata, having been misled by wrongly named shells.” (Collinge, 1903)
“This shell has a very distinct thread running below the suture.” (Loosjes, 1963)
Sykes (1902) original descriptions on Clausilia (Pseudonenia) kelantanense – “Shell elongately fusiform, dark chestnut brown, with 11-11 ½ whorls; protoconch large, cylindrical, and smooth, the later whorls being closely, finely striate, with traces of spiral sculpture crossing the striae; suture well marked; last whorl very slightly narrower than the preceding one. Mouth ovate-pyriform, chestnut within, the peristome being solute, thickened and reflexed. Parietal lamella nearly vertical and reaching to the lip, columellar lamella moserately deeply seated, twisted, and ascending fairly rapidly; plica principalis medium in size, with two small palatal plicae (upper one the largest) below.”
Loosjes (1953) descriptions on Phaedusa kelantanensis – “Shell large, turreted-fusiform, not very solid, dark chestnut-brown, sometimes yellowish-brown; glossy, scarcely transparent. Spire abruptly widening below the 2 ½-3 top whorls; giving the impression that a blunt top has been superimposed on the broader lower whorls. The spire has rather straight lateral outlines. Whorls 11-12, rather convex, sculptured with numerous transverse, fine, wavy striae (about 16-18 to the mm on the whorl above the aperture), coarser and wider apart on the neck. Sometimes very faint spiral lines are visible between the striae. A faint thread in the colour of the shell runs below the shallow suture. Nuclear whorls (3) broad, almost smooth; they form a distinct, delicate, and blunt top. The penultimate whorl is broadest. The lower whorls are comparatively higher than the others. In a side view the neck is not very strongly curved. Aperture ovate-pyriform, trumpet-like, reddish-brown within. The sinulus is broad, it is separated from the aperture by the lamella superior. This feature is also accentuated by the edge of the peristome, which is distinctly bent upwards in the place where it is touched by the superior lamella. The palne of the peristome bends backward below, hence it does not run parallel with the axis of the shell. The aperture is rather large. The peristome is continuous, whitish, and reflexed, the upper margin is free, it even protrudes distinctly from the preceding whorl. From the sinulus the outer margin runs straight or slightly curved down. The parieto-columellar margin runs regularly curved down. The parieto-columellar margin runs regularly curved down and towards the right side. The base of the peristome is rounded. Lamella superior is of moderate height, reaching the margin; its inner end approaches the lamella inferior, it is clear of the lamella spiralis. The outer end of the lamella spiralis lies at the left side, a little more towards the suture than the lamella superior. Lamella spiralis runs upward as a high crest. Lamella inferior is visible in the aperture as a high thin fold of which the margin runs almost horizontally inward (in the filicostata subspecies this lamella is heavier and lower). When looking into the aperture it is possible to see the inner side of the base of the inferior lamella. Lamella subcolumellaris is only visible behind the outer end of the lamella inferior, looking from the left side and from below into the aperture. The closing apparatus lies at the right side. The principal plica runs from dorso-lateral on the left side to ventro-lateral on the right side. It is about half a whorl long. Below the plica principalis are some 3 to 6 plicae of which the upper one is the longest, the second or third is separated from the last, the lowest, by the large gap. The lowest lies as the right side a little above the umbilical slit. At the right side of the umbilicus, between this and the lowest plica palatalis, is the end of the lamella subcolumellaris, hardly visible through the shell. The plate of the clausilium is broadest at 1/3 from the relatively blunt apex, the sides diverge from the pedicle up to that point, its length is about 3.2 mm, its width 1.8 mm.”
Clausilia (Pseudonenia) kelantanense – “Alt. 31.8; diam. max. 5 millim.; diam. Alt. Apert. 6.5, lat. Apert. 4.8 millim.” (Sykes, 1902); Phaedusa kelantanensis – “Length of the shells 29.1 to 33.3 mm, diam. 5.1 to 5.7 mm; aperture; height 5.9 to 6.9 mm, width 4.5 to 5.3 mm.” (Loosjes, 1953); Phaedusa kelantanensis from Kuala Tahan– “Shell: length 28.4-30.0, diam. 4.8-5.2, Aperture: height 6.0-6.5, width 4.2-4.9, number of whorls 11-12.” (Loosjes, 1963); Phaedusa kelantanensis from Ulu Kenyam Kechil – “Shell: length 28.9, diam. 5.8, Aperture: height 6.0, width 4.8, number of whorls 12.” (Loosjes, 1963)
Type locality – “Kelantan, Malay Peninsula” leg. J. Waterstradt (Sykes, 1902)
Other localities – “Bukit Besar, Nawngchik, 2500 feet” (Collinge, 1903); “Selangor, four miles from genting Sempak Hill Station” leg. C. Dover/1926 (Loosjes, 1953); “Kelantan: Gua Nenek, 7 miles South of Gua Musang” leg. M. W. F. Tweedie/1939 (Loosjes, 1953); “Kelantan: Batu Tongkat near Gua Musang” leg. M. W. F. Tweedie/1939 (Loosjes, 1953); “Pahang: Kota Tongkat” leg. M. W. F. Tweedie/1947 (Loosjes, 1953); “Pahang: Mount Chintamani, near Bentong” leg. M. W. F. Tweedie/1935 (Loosjes, 1953); “Pahang: Kuala Tahan, King George V National Park, on trail to Sungei Teka” (Loosjes, 1963); “Pahang: Tomoh Begong, Ulu Kenyam Kechil, King George V National Park” leg. J. R. Hendrickson/1953 (Loosjes, 1963)
“It may be a tree-climbing form, its long and slender appearance might also point in that directoion.” (Loosjes, 1953)