rostral teeth

rostral teeth
tooth-like projections on the sides of the snout of Pristidae and Pristiophoridae. They lack a basal plate typical of other elasmobranch teeth and are made of orthodentine and vitrodentine with a pulp cavity filled with osteodentine

Dictionary of ichthyology. 2009.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • rostral tooth — See: carapace tooth (g) [Martin, 2005]. (Order Decapoda): See: carapace teeth (g) [McLaughlin, 1980]. (Order Decapoda): One in a series of tooth or spine like projections along anterior extension (rostrum) of carapace. According to position one… …   Crustacea glossary

  • rostral tooth — (ARTHROPODA: Crustacea) On a Decapoda carapace, a tooth on the rostrum, may be single or multiple, with the upper, lower and lateral teeth distinguished …   Dictionary of invertebrate zoology

  • carapace teeth — (Order Decapoda): (a) cardiac. On midline of carapace just posterior to cervical groove. (b) gastric. On midline of carapace immediately anterior to cervical groove. (c) lateral. On lateral margin of carapace; anterolateral, mediolateral, and… …   Crustacea glossary

  • Longnose sawshark — Taxobox name = Longnose sawshark status = LC | status system = IUCN3.1 trend = unknown regnum = Animalia phylum = Chordata classis = Chondrichthyes subclassis = Elasmobranchii ordo = Pristiophoriformes familia = Pristiophoridae genus =… …   Wikipedia

  • Japanese sawshark — Taxobox name = Japanese sawshark status = trend = unknown regnum = Animalia phylum = Chordata classis = Chondrichthyes subclassis = Elasmobranchii ordo = Pristiophoriformes familia = Pristiophoridae genus = Pristiophorus species = P. japonicus… …   Wikipedia

  • tooth — (Order Decapoda): Tooth like structure, either in gastric mill of cardiac stomach or referring to blunt, relatively broad projection on outer surface of carapace. In cardiac stomach, one may distinguish one median and two lateral teeth. On… …   Crustacea glossary

  • fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with …   Universalium

  • Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… …   Universalium

  • Anatomical terms of location — Standard anatomical terms of location are employed in science which deal with the anatomy of animals to avoid ambiguities which might otherwise arise. They are not language specific, and thus require no translation. They are universal terms that… …   Wikipedia

  • nervous system, human — ▪ anatomy Introduction       system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …   Universalium

Share the article and excerpts

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