Everettia aglaia (Pfeiffer, 1854)
“La descrizione di questa specie data dal dott. v. Martens corrisponde per ogni punto agli esemplari provenienti dal viaggio Doria e Beccari, tranne che pel carattere della sutura marginata che io non potei ravvisare.” (Issel, 1874)
“There is a fine series of these shells in the collection, some 85 specimens, and I have examined those in the British Museum. On ray arranging them by localities in juxta position, it was at once apparent that those from the Niah Hills, 15 in numbers, and 2 from Kina Balu were alike and separable from all the rest. These last are Everettia subconsul of Mr. Edgar Smith, Ann. Mag. Nat. Hist., Aug. 1887, p. 132, from North Borneo (A. Whitehead), with which I have compared them. They may be known by the less number of whorls, i. e. not being so closely wound, and those from the Niah Hills are very ruddy in colour and flatter on spire (var. depressa).” (Godwin-Austen, 1891)
Godwin-Austen (1891) stated the specimens from Karemon Island differ from all others in their dark sienna-brown colour, and might be designated as E. consul rufa with 7 whorls and shell measured; height – 14.25mm and width 25 mm.
“Helix consul was the first to be described from this part of the world, the exact locality being Sarawak; and an examination of the British Museum species led me to the conclusion that jucunda and aglaia are only based on the size, or at the best may be considered local varieties of consul. E. hyalina of von Martens appears to be another variety; but the type I have not seen, and it is most difficult to form any opinion from drawings when the differences are so minute and when shades of colour are so subtle and yet so constant in the groups from different areas. E. hyalina appears to be larger and flatter in the spire than jucunda, and the proportions of the before-mentioned varieties come out as follows, as regards the maj. diam.: E. consul 22 mm., jucunda 11.18, hyalina 21.0, and aglaia l0.0.” (Godwin-Austen, 1891)
“Neither Reeve’s nor Martens’s figure gives a good idea of the type of this species. The subplivations at the suture are the principal distinguishing feature.” (E. A. Smith, 1895)
Pfeiffer (1854) original descriptions on Helix aglaia – “H. testa subclause perforata, depressa, tenui, laevigata, nitidissima, pellucida, fulvo-succinea; spira vix elevate, vertice subtili; sutura linea rufescente marginata; anfract. 6 convexiusculis, lente accrescentibus, ad suturam plicatulis, ultimo non descendente, rotundato, basi medio excavato; aperture parum oblique, regulariter lunari; perist. simplice, recto, marginibus distantibus, columellari superne subcalloso, anguste reflexo.”
Tryon (1886) descriptions on Nanina (Macrochlamys) aglaja – “Scarcely perforate, thin, smooth, pellucid, very shining; amber brown; whorls 6, plicatulate at the suture, which is margined by a chestnut line, periphery rounded.”
Helix aglaia – “Diam. maj. 13, min. 11, alt. 6 mill.” (Pfeiffer, 1854); Nanina (Macrochlamys) aglaja – “Diam. 13, alt. 6 mill.” (Tryon, 1886)
Type locality – “Sarawak, Borneo” (Pfeiffer, 1854)
Other localities – “Territorio di Sarawak” leg. Doria and Beccari (Issel, 1874); “Trusan”, “Labuan”, “Tiga island”, “Kusan and Penggiron districts in South-eastern Borneo” leg. W. Doherty (Aldrich, 1889); “Dahat island”, “Karemon island?” (Godwin-Austen, 1891); “Barit Mountain” leg. A. Everett (E. A. Smith, 1895)