| 词条 | Triviella ovulata |
| 释义 |
| name = Triviella ovulata baby's toes | image = Trivia_ovulata.jpg | image_caption = A live individual of Triviella ovulata, head end towards the right | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | unranked_ordo = clade Caenogastropoda clade Hypsogastropoda clade Littorinimorpha | superfamilia = Velutinoidea | familia = Triviidae | genus = Triviella | species = T. ovulata | binomial = Triviella ovulata | binomial_authority = (Lamarck, 1810) | synonyms = Trivia ovulata (Lamarck, 1811) }} Triviella ovulata, common name "baby's toes", is a species of small sea snail, a marine gastropod mollusc in the family Triviidae, the trivias. DistributionThis snail is known around the South African coast from the Cape Peninsula to Coffee Bay in depths of 8–30 m. This species is endemic to the area.[1] DescriptionTriviella ovulata has a plump, round, white to deep pink shell. In life the shell is usually completely covered with the white mantle, which is variably spotted with black.[2] It reaches a maximum size of 40 mm. EcologyThis snail is usually found among colonial ascidians, on which it feeds. The snail first drills a hole in the wall of the colony, then eats its fill and finally lays its capsule-shaped egg cases in the resulting cavity. The black-spotted form of this animal resembles Mandela's nudibranch, Mandelia mirocornata, which may cause fish predators to avoid it. References1. ^LILTVED W.R. 2000. Cowries and their relatives of southern Africa {{ISBN|0-908420-89-7}} {{Taxonbar|from=Q7844673}}2. ^BRANCH, G.M., BRANCH, M.L, GRIFFITHS, C.L. and BECKLEY, L.E (2005): Two Oceans: a guide to the marine life of southern Africa {{ISBN|0-86486-672-0}} 2 : Triviidae|Gastropods described in 1810 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。