Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 96. (Budapest 2004)

Verdcourt, B.: New and little known species of terrestrial Mollusca from East Africa and Congo (Kinshasa)

Tayloria (Colpanostoma) leroyi depressa ssp. n. (Fig. 6) Type material - Holotype and juvenile paratype: Tanzania, Nguru Mts, Kanga, montane rain­forest, 850 m 30.111.1989, leg. A. BANKOVICS (HNHM 93860 and HNHM 93861/1). Diagnosis - Differs from Tayloria (Colpanostoma) leroyi (BOURGUIGNAT, 1889) in its much more depressed shell but agreeing with the striation disappearing on the lower surface. Description - Shell depressed behind; spire moderately raised, broadly rounded; creamy white and glossy; umbilicus rather narrow, very deep, the whorls being visible to top, about 2 mm wide. Whorls 6, moderately convex, the last smoothly rounded with no trace of peripheral angulation; su­ture moderate. First 3 whorls + smooth then next ribbed just below the suture until the last 1/3 of a whorl before the body whorl which has ± complete ribs; body whorl with strong curved ribs, 3^1 per mm which extend almost to the periphery but base of shell + smooth; varices due to growth stages are fairly marked particularly beneath and within umbilicus. Aperture %-circular. oblique set at 30° to vertical; peristome strongly reflected, strongly retracted at junction with body whorl to form a dis­Fig. 6. Tayloria leroyi depressa ssp. n., holotype (scale bar = 1 cm)

Next

/
Thumbnails
Contents