noun (plural -branchs) Etymology: New Latin Prosobranchia, from proso- in front (from Greek prosō forward) + branchia gills (from Greek) Date: 1851 any of a subclass (Prosobranchia) of gastropod mollusks that have the loop of visceral nerves twisted into a figure eight, the sexes usually separate, and usually an operculum • prosobranch adjective

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Prosobranch — Pros o*branch, n. (Zo[ o]l.) One of the Prosobranchiata. [1913 Webster] …   The Collaborative International Dictionary of English

  • prosobranch — ▪ gastropod       any snail of the subclass Prosobranchia, class Gastropoda. Most of these roughly 20,000 snail species are marine; a few live on land or in fresh water. Many prosobranchs breathe by means of gills, which are located in the mantle …   Universalium

  • prosobranch — pros·o·branch …   English syllables

  • prosobranch — I. ˈpräsəˌbranŋk adjective Etymology: New Latin Prosobranchia : of or relating to the Streptoneura II. noun ( s) Etymology: New Latin …   Useful english dictionary

  • gastropod — /gas treuh pod /, n. 1. any mollusk of the class Gastropoda, comprising the snails, whelks, slugs, etc. adj. 2. Also, gastropodous /ga strop euh deuhs/. belonging or pertaining to the gastropods. [1820 30; < NL Gast(e)ropoda a class of mollusks.… …   Universalium

  • mollusk — molluskan, molluscan /meuh lus keuhn/, adj., n. mollusklike, adj. /mol euhsk/, n. any invertebrate of the phylum Mollusca, typically having a calcareous shell of one, two, or more pieces that wholly or partly enclose the soft, unsegmented body,… …   Universalium

  • Bithynia tentaculata — Conservation status NE[1] …   Wikipedia

  • Prosobranchia — used to be a large taxonomic subclass of snails (gastropod mollusks). However, that version of gastropod taxonomy dates back to the 1920s, and is now considered to be outdated because that subclass has been proven to be polyphyletic; i.e. the… …   Wikipedia

  • Gastropoda — Gastropod Temporal range: Late Cambrian–Recent[1] …   Wikipedia

  • Valvata piscinalis — Photo of a shell of Valvata piscinalis Drawing of a shell of Valvata piscinalis …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”