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Show 1889.] LAND-SHELLS F R O M BORNEO. 335 surface with ordinary lines of growth ; colour a pale ochre mottled somewhat sparsely with dark liver-brown, below the keel with stronger zigzag blotchings ; spire conoid, rather high ; apex subacute; suture shallow • whorls 5, the last flattened on the side ; aperture circular, suboblique ; peristome continuous, simple, slightly reflected, sinuate below the columellar margin and with a slight thickening there. Size : maj. diam. 41, min. 32'5 ; alt. axis 18*0 millim. Hab. Busan and Niah Hills (A. Everett). There are three specimens in the collection, one being from the Niah Hills. I have named this fine species after Rear-Admiral Sir Thomas Cochrane, who commanded the combined squadron in the Bornean waters in 1846, which captured Brune and destroyed that piratical stronghold. 4 a. CYCLOPHORUS COCHRANEI, var. OCHRACEUS. In this variety from the Busan Hills the only difference observable in the form of the shell is its deeper suture. It has no markings of any kind, the whole surface being of a dark straw or ochre colour. There are two specimens, and as they are from the same hills I do not think they can be separated from the species ahove described. 5. CYCLOPHORUS TALBOTI, n. sp. Shell turbinate, subangulate ; umbilicated, but umbilicus nearly hidden by the reflection of the columellar margin of the aperture; colour rich madder-brown, paler around the umbilicus, in one specimen a dark band below the periphery, speckled with white and with a regular series of pale whitish ochre spots following the suture, a line of similar smaller spots on the keel; spire conic ; apex subacute ; suture moderately impressed; whorls 5, convex ; aperture circular, oblique ; peristome solid, simple, slightly reflected, very sharply so on the columellar margin. Size: maj. diam. 40, min. 22*5; alt. axis 17*0; diam. body-whorl 23*25 millim. Hab. Busan Hills (A. Everett). This species is allied to C. borneensis, but is not so openly umbilicated or so sharply keeled, and the apical whorls increase in size more rapidly ; the coloration is much darker and more attractive. I have named it after Captain Talbot, who commanded H.M.S. 'Vixen,' and in 1845 defeated and took the stronghold of Sheriff Osman in the Mulludu river. 6. CYCLOPHORUS PHLEGETHON, n. sp. Shell depressedly turbinate, subangulate on periphery, openly and widely umbilicated ; sculpture a smooth surface ; colour a rich dark madder-brown, crossed by fine zigzag continuous pale lines; spire low ; apex blunt and rounded ; suture impressed ; whorls 4, at apex closely wound, and increasing rapidly after 2\ have been formed ; aperture circular, suboblique; peristome simple, slightly reflected. |
