Chytra kirki Color drawing of apertural view of the shell of Chytra kirki shows its dirty whitish appearance Conservation status Scientific classification Kingdom: Animalia Phylum: Mollusca Class: Gastropoda (unranked): clade Caenogastropoda
Superfamily: Cerithioidea Family: Paludomidae Subfamily: Hauttecoeuriinae Tribe: Tiphobiini Genus: Chytra
Species: C. kirki Binomial name Chytra kirki
(E. A. Smith, 1880)
Limnotrochus Kirkii E. A. Smith, 1880
Chytra kirki is the only species in the genus Chytra.
The shell is solid, trochiform and dirty whitish in color. The spire is acutely conical. The shell has 6 or 7 feebly concave whorls. They are bearing arcuate and flexuous lines of growth and six or seven granulous lirae, whereof that immediately above the suture is the largest. The body whorl is acutely angular at the periphery, encircled by two subequal granular ridges. The base is concave near the circumference, then slightly convex, concentrically granosely ridged. The ridges nearest the umbilicus are coarser than the others, and also arcuately radiately striated. The shell has deep and narrow umbilicus.
The aperture is irregularly subcircular and whitish. The outer lip (viewed laterally) is obliquely incurved. Basal and columellar margins are forming one strongly arcuate line joined above to the extremity of the labrum by a thickish callosity.
Its natural habitat is freshwater lakes. It is widespread species in the Lake Tanganyika, but its distribution is patchy and with low numbers of snails. It lives on the mud with much organic material in depths 10-20 meters. There is possibility that it can live in depths up to 80 m.
This article incorporates public domain text from the reference
- ^ a b c d e f g Nicayenzi F., Ngereza C. & Lange C. N. (2004). Chytra kirki. 2006 IUCN Red List of Threatened Species. Downloaded on 6 August 2007.
- ^ Strong E. E. & Glaubrecht M. (2010). "Anatomy of the Tiphobiini from Lake Tanganyika (Cerithioidea, Paludomidae)". Malacologia 52(1): 115-153. doi:10.4002/040.052.0108.
- ^ Moore J. E. S. (1898). "On the Hypothesis that Lake Tanganyika represents an Old Jurassic Sea". Quarterly Journal of Microscopical Science (N.S.) 41: 303-321. 307. plate 23, figure 6.
- ^ a b Smith E. A. (1880). "Diagnoses of new shells from Lake Tanganyika and East Africa". Annals and Magazine of Natural History (5)6: 425-430. page 426.
- ^ a b c d e f Brown D. S. (1994). Freshwater Snails of Africa and their Medical Importance. Taylor & Francis. ISBN 0 7484 0026 5.
- ^ a b c d e f g h i j k l m Smith E. A. (1881). "On a collection of shells from lakes Tanganyika and Nyassa and other localities in East Africa". Proceedings of the Zoological Society of London 1881: 276-300. Plate 33, figure 18-18b.
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