Glossary

67 terms beginning with I · showing 41–67

1. interdorsal

   In species possessing more than a single dorsal fin, the space between the first and second fins.

2. internal filter

   A filter located inside the aquarium and typically used for smaller tanks due to its reduced capcity for media compared to external filters.

3. International Code of Zoological Nomenclature

   Set of fixed rules for the naming of animals and the resolution of problems in zoological nomenclature.

   Used in 4 profiles

4. International Union for Conservation of Nature

   The world's largest and most influential environmental organisation.

5. interopercle

   One of the bones comprising the operculum.

   Used in 1 profile

6. interopercular

   Of, relating to, or located on the interopercle.

   Used in 16 profiles

7. interopercular spine

   Spine located on the interopercle, present in some fishes.

   Used in 3 profiles

8. interorbital

   Of, relating to, or located on the space between the eyes

   Used in 55 profiles

9. interorbital distance

   The shortest measurable distance between the eyes.

   Used in 10 profiles

10. interradial

    Located between two fin rays or spines.

    Used in 2 profiles

11. interradial membrane

    The membrane connecting fin rays and spines in fishes.

    Used in 15 profiles

12. interspecific

    Existing or occurring between different species. Opposite of intraspecific.

    Used in 1 profile

13. interstitial

    Relating to or inhabiting the small spaces between tissue, organs, or grains of a substrate.

14. intertidal

    Of or being the area between high and low tide marks; recurrently covered and exposed by tides.

15. intraspecific

    Existing or occurring within a given species. Opposite of interspecific.

    Used in 30 profiles

16. introduced species

    See exotic species.

17. intromittent

    Used in reference to a modified fin of a male which aids in transfer of gametes to the female during reproduction.

    Used in 4 profiles

18. invalid

    In zoological nomenclature, of an available name or nomenclatural act that is not valid under the ICZN code.

    Used in 43 profiles

19. invalid name

    In zoological nomenclature, any available name for a taxon other than the valid name.

    Used in 12 profiles

20. invasive

    Most commonly used in reference to a native or non-native species with the tendency to spread widely that does or is likely to cause environmental, economic and/or ecological harm, though may also be applied to widespread, usually non-native, species that do not exert such adverse effects.

    Used in 13 profiles

21. iridescent

    Possessing colours that shimmer and change when viewed in different lights or from different angles.

    Used in 93 profiles

22. iridophore

    An iridescent chromatophore.

    Used in 1 profile

23. isopod

    Any member of the crustacean order Isopda, comprising species with 7 pairs of legs and lacking a fully-formed carapace.

    Used in 1 profile

24. isthmus

    Narrow strip of land connecting two larger areas, or a narrow strip of tissue connecting two larger body parts. In ichthyology often used in reference to the fleshy throat region of a fish which externally separates the two gill chambers.

    Used in 26 profiles

25. Isthmus of Kra

    A narrow land-bridge, also known as the 'Devil's Neck', connecting mainland Asia and the Malay Peninsula. Its eastern side belongs to Thailand and western part Myanmar.

    Used in 7 profiles

26. IUCN

    Abbreviation for The International Union for Conservation of Nature.

    Used in 29 profiles

27. IUCN Red List

    Global inventory of the conservation status of species maintained by the IUCN.

    Used in 19 profiles