词条 | Testudinalia testudinalis |
释义 |
| image = Testudinalia testudinalis 002.jpg | image_caption = Testudinalia testudinalis | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | unranked_superfamilia = clade Patellogastropoda | superfamilia = Lottioidea | familia = Lottiidae | subfamilia = | genus = Testudinalia | species = T. testudinalis | binomial = Testudinalia testudinalis | binomial_authority = (Müller, 1776) | synonyms_ref = [1] | synonyms =
}}Testudinalia testudinalis, common name the common tortoise limpet, is a species of sea snail, a true limpet, a marine gastropod mollusk in the family Lottiidae, one of the families of true limpets.[1] It is commonly known as the plant limpet or tortoiseshell limpet.[2] DescriptionT. testudinalis has a low domed shell, oval in outline. It can grow to up to 30 x 24 x 10 mm but typically is about half this size. The apex is towards the anterior of the shell and fine ridges radiate from it. The shell is banded with brown and white. The mantle is the part of the body wall immediately under the shell and at the edges it is curled round to form a collar. The foot is broad and oval. The head bears two sensory tentacles with a tiny black eye at the base of each.[3]Distribution and habitatT. testudinalis occurs in northern regions of both the Pacific and Northwest Atlantic Oceans and in European waters. It is found in the neritic zone from low water mark down to a depth of about fifty metres. It is usually found on stones and boulders, especially those encrusted with red crustose algae such as Lithothamnion.[4]BiologyRed eggs are laid in a sheet in the spring and the larvae are planktonic.[2] References1. ^1 {{WRMS species|234208|Testudinalia testudinalis (Müller, 1776)||4 October 2010}} 2. ^1 The Marine Flora & Fauna of Norway 3. ^Invertebrate Anatomy OnLine {{Webarchive|url=https://web.archive.org/web/20110930195551/http://webs.lander.edu/rsfox/invertebrates/tectura.html |date=2011-09-30 }} 4. ^Marine Species Identification Portal
2 : Lottiidae|Molluscs described in 1776 |
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。