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Show 1891] LAND-SHELLS FROM BORNEO. 53 Nanina (Macrochlamys) jucunda, v. Martens, Preuss. Exped. Ost-Asien, Landschneck. p. 40, t. xii. fig. 7 (1867). The specimen figured measures: maj. diam. 19-0, min. 18*5; alt. axis 9'0 millim. Var. nana from Dr. Hungerford's collection. This is a M S . name of Mr. Geoffrey Nevill's, and appears in his copy of the ' Hand-list' as given to two specimens sent to the Indian Museum, Calcutta, as a variety of jucunda. The exact locality is not quoted. Everettia hyalina. Nanina hyalina, v. Martens, Monatsber. Akad. Berlin, 1864, p. 266 ; id. Preuss. Exped. Ost-Asien, Landschneck. p. 241, t. xii. fig. 5 (1867). Helix (Macrochlamys) hyalina, Pfeiff. Monogr. Helic. v. p. 99 (1868). Size : maj. diam. 22'5, min. 20"25 ; alt. axis 10*75 millim. Von Martens describes the animal as black-grey, of a slender form ; tentacles and neck black, with a white central line on the latter; mantle reflected; jaw with a middle projection. In many species of Macrochlamys similar dark and white varieties occur. This species occurred in a disused gold-mine at Kapuas-Strom, in Upper Pontianak, West Borneo. Everettia aglaia. Helix aglaia, Pfeiff. P. Z.S. 1854, p. 289 ; id. Monogr. Helic. iv. p. 46(1859), et v. p. 103(1868); Reeve, Conch. Icon. pi. cxcix. fig. 1396 (1854). Nanina (Macrochlamys) aglaia, v. Martens, Preuss, Exped. Ost- Asien, Landschneck. p. 242, t. xii. fig. 13 (1867). Macrochlamys aglaja, var. emarginata, Nevill. Two specimens, Borneo (Sowerby, ex coll. Lombe Taylor). In this species the suture is not " linea rufescente marginatum Nevill, MS., Hand-1. Ind. Mus. There is a fine series of these shells in the collection, some 85 specimens, and I have examined those in the British Museum. On my arranging them by localities in juxtaposition, it was at once apparent that those from the Niah Hills, 15 in number, 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 (J. 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, Plate III. fig. 2). The remainder are from the following localities:- No. 1. Trusan, 12. No. 2. Labuan, 82 ; all range from 15 m m . in maj. diam. No. 3. Tiga Island, 1 ; same as No. 2. 3* |