Resemblance of one organism to another, usually for protective purposes.

Abbreviation for millilitre.

Of or relating to a statistical mode or modes.

The value or item occurring most frequently in a series of observations or statistical data. Often quoted in relation to a meristic character or characters.

Shaped like a molar, i.e., low, broad and squarish.

Any member of the invertebrate phylum Mollusca.

Large, highly diverse invertebrate phylum. Members are difficult to define but generally possess a soft, unsegmented body, and often a shell or shell-like structure secreted by a mantle. Includes all bivalves, cephalopods, and gastropods.

Jointed or constricted at regular intervals so as to resemble a string of beads.

Prefix meaning singular or unique.

Having both the male and female reproductive organs in the same specimen; hermaphrodite. Opposite of dioecious.

Practicing monogamy.

The practice or state of having only one reproductive partner over a given period of time, e.g., a single breeding season, year, or entire reproductive life.

Used in reference to a taxonomic group containing all descendants of a single, often hypothetical, common ancestor, often characterised by one or more synapomorphies. A clade is a monophyletic group.

Used in reference to a genus containing only a single species.

Used in reference to a taxonomic group containing only a single member, e.g., a monotypic genus or family.

Type of lowland stream found in South American savannas with riparian forest dominated by the moriche palm (Mauritia flexuosa). Often subject to seasonal flooding.

Branch of biology concerned with the form and structure of organisms; the form and structure of an organism.

Physical character based on measurement, e.g. standard length.

Form of taxonomical analysis utilising the morphometry of organisms.

Measurement of the structure, form, and parts of organisms.