OCR Text |
Show 1895.] BOBNEO AND NEIGHBOURING ISLANDS. 105 11. TEOCHONANINA PAEAGUENSIS, Smith. Trochonanina paraguensis, Smith, Ann. Mag. Nat. Hist. 1893, vol. xi. p. 349, pi. xviii. figs. 7-9. Hab. Balabac and Palawan. The specimens from Balabac offer no variation from those occurring at Palawan. A small variety, 13 millim. in diameter, occurring at the latter island, has the same number of whorls, but the spire a little more conical than the type. 12. TEOCHONANINA ALEXIS. (Plate II. figs. 13, 14.) Testa T. paraguensi affinis, sed plerumque paulo major, fusca, labro incrassato roseo, anfractibus 8, supra peromnes partes spiraliter tenuiter striatis, ultimo angustiore, infra vix concen-trice striato. Diam. maj. 21| millim., min. 20, alt. 8. Diam. maj. 18| millim., min. 17, alt. 7|. Hab. Banguey Island. This species is of a uniform brown tint above and below, and the thickened lip is pale rose. The spiral sculpture on the upper surface extends over the whorls and is finer than in T. paraguensis. The shell also is a little more compressed, and the body-whorl is narrower, and with only feeble traces of spiral stria? beneath. 13. TEOCHONANINA HEEACLEA. (Plate II. fig. 12.) Testa T. bongaoensi affinis, sed spira magis conica, anfractibus lentius accrescentibus, ultimo latiore, lineis spiralibus et validioribus. Diam. 17 millim., alt. 8. Hab. Mount Eabong, West Sarawak. A trifle larger than T. bongaoensis (Ann. & Mag. N. H . 1894. vol. xiii. p. 52, pi. iv. figs. 2-2 6), but of the same brown colour and general appearance. The lip is rosy white and tortuous as in T. bongaoensis, but the spire is not convexly conoidal, but with rectilinear sides, the increase and width of the whorls are different, and the spiral sculpture is stronger. 14. TEOCHONANINA KINA-BALUENSIS. (Plate II. figs. 15, 16.) Testa imperforeda, depressa, acute carinata, rufo-castanea, supra fortiter spiraliter striata, infra lineis incrementi modo striata spira. conica, parum elata; anfractus 7, supremipallidi, convexiusculi, cceteri planiuscidi, supra suturam albo-marginatam leviter impressi, incrementi lineis et striis spiralibus sculpti, ultimus acutissime carinatus, infra convexiusculus, prope carinam impressus; apertura angulation lunar is, margine basali conspicue incrassato et leviter reflexo, purpureo-rufo, insertionem pallido, paulo dilatato, margine superiore, tenui. Diam. maj. 23*5 millim.. min. 21, alt. 10. ffab, Kina Balu, 3000-4000 feet (A. Everett). |