Reddish frog snail
| Reddish frog snail | ||||||||||||
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Housing by Tutufa rubeta |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Tutufa rubeta | ||||||||||||
| ( Linnaeus , 1758) |
The Reddish Frog Snail ( Tutufa rubeta ) is a medium-sized predatory living snail from the family of the frog snails (genus Tutufa ), which in the Red Sea and the Indo-Pacific is widespread.
features
The snail shell of Tutufa rubeta has a high thread, a short front siphon channel and a small, oval, extremely wrinkled case mouth. The siphonal canal is strongly bent to the right, but the fasciole protrudes less than in Tutufa bufo . The outer sculpture consists of three spiral cords, of which the peripheral has low, rounded, irregular nodules that protrude little from the varices. The empty spaces are completely filled with weaker spiral lines. The entire surface is covered with small, rounded, irregularly arranged gems, so that overall it appears more evenly knotty than other species. The outer lip of the case mouth is narrowly widened, its outer edge serrated by outer spiral ribs and carries a row of 12 to 14 short, rounded nodules on the inner edge of the fold and a second row of elongated ridges further inside the case mouth at the level of the outer nodules, however separated from these by a narrow, smooth zone. The exterior surface of a clean home is deep red to light red and rough and irregularly flaked with paler red. The inside of the case mouth is deep red with pale pink to white. The inner lip is light to deep red with a pattern of narrow and coarse fusing pale folds over its entire height and a short row of small nodules on the parietal callus , delimiting the circumference of the short anal sinus. In adult snails the house reaches around 8.3 cm to 10.1 cm, height with a diameter of around 4.8 cm, to 5.9 cm.
distribution and habitat
Tutufa rubeta is distributed in the Indo-Pacific from the Mascarene Islands to western Polynesia and from Taiwan to New South Wales . The snail is found mainly on coral reefs in the intertidal zone and a little below.
Life cycle
Like other frog snails, Tutufa rubeta is segregated. The male mates with the female with his penis . Veliger larvae hatch from the eggs and live as plankton until they have metamorphosed into the finished snail.
food
Tutufa rubeta feeds among other echinoderms , including feather stars and brittle stars .
literature
- AG Beu (1998): Australian gastropods of the family Bursidae. Part 1. Sydney 2003, pp. 280-282.
- JR Houbrick, V. Fretter (1969): Some aspects of the functional anatomy and biology of Cymatium and Bursa. Proceedings of the Malacological Society of London 38, pp. 415-429.
Web links
- Fischhaus Zepkow: Family Bursidae - frog snails
- Underwater Kwajalein: Tutufa rubeta (Linnaeus, 1758)
- Bursidae: Tutufa rubeta (Linnaeus, 1758). From: JM Poutiers: Gastropods . In: Kent E. Carpenter, Volker H. Niem (Eds.): FAO Species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 1: Seaweeds, corals, bivalves and gastropods. Food and Agriculture Organization of the United Nations, Rome, 1998. p. 552.
Individual evidence
- ↑ Underwater Kwajalein: Family Bursidae - Tutufa rubeta (Linnaeus, 1758) (...) feasting on a crinoid , August 10, 2010 / May 20, 2012.
- ^ Frank Riedel (1995): An outline of Cassoidean phylogeny (Mollusca, Gastropoda). Contr. Tert. Quatern. Geol. 32 (4), pp. 97-132, here p. 101.