nuptial tubercle

nuptial tubercle
breeding tubercle (usually small, raised, epidermal structures on regions of the head, body, or fin rays where two individuals come in contact. May consist of aggregations of non-keratinized epidermal cells, the same with a light, superficial keratinized cuticle, or with substantial number of fully keratinized cells that are organized to form a discrete, usually conical cap. Breeding tubercles may function to maintain body contact between the sexes during spawning; in the defence of nests and territories; in the stimulation of females in courtship; and in some forms perhaps in sex and species recognition. Found in 15 families of 4 orders; Salmoniformes, Gonorhynchiformes, Cypriniformes, and Perciformes (Wiley and Collette, 1970))

Dictionary of ichthyology. 2009.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • nuptial efflorescence — nuptial tubercle …   Dictionary of ichthyology

  • breeding tubercle — usually small, raised, epidermal structures on regions of the head, body, or fin rays where two individuals come in contact. May consist of aggregations of non keratinized epidermal cells, the same with a light, superficial keratinized cuticle,… …   Dictionary of ichthyology

  • Humpback chub — Taxobox status = VU | status system = IUCN2.3 name = Humpback chub regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Cypriniformes familia = Cyprinidae genus = Gila species = G. cypha binomial = Gila cypha binomial authority =… …   Wikipedia

  • pearl organ — breeding tubercle (usually small, raised, epidermal structures on regions of the head, body, or fin rays where two individuals come in contact. May consist of aggregations of non keratinized epidermal cells, the same with a light, superficial… …   Dictionary of ichthyology

  • Frog — For other uses, see Frog (disambiguation). Frogs Temporal range: Triassic–present …   Wikipedia

  • Ingerophrynus macrotis — Taxobox name = Ingerophrynus macrotis status = LC | status system = IUCN3.1 regnum = Animalia phylum = Chordata classis = Amphibia ordo = Anura familia = Bufonidae genus = Ingerophrynus species = I. macrotis binomial = Ingerophrynus macrotis… …   Wikipedia

  • arthropod — /ahr threuh pod /, n. 1. any invertebrate of the phylum Arthropoda, having a segmented body, jointed limbs, and usually a chitinous shell that undergoes moltings, including the insects, spiders and other arachnids, crustaceans, and myriapods. adj …   Universalium

Share the article and excerpts

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