Palpal bulb
- Pronunciation
- /PAL-puhl buhlb/
- Category
- Anatomy
- Singular
- Palpal bulb
- Plural
- Palpal bulbs
Definition
A specialized structure found in male spiders, part of the pedipalp used for transferring sperm to the female during mating.
Etymology
Derived from 'palp', referring to the appendage, and 'bulb', indicating a rounded, swollen structure.
Example
The palpal bulbs of the male tarantula are used to deliver sperm to the female during mating.
Synonyms
- Embolus
- Sperm transfer organ
Related Terms
- Pedipalp
- Sperm
- Mating
- Ejaculatory duct
Usage Notes
Palpal bulbs are unique to male spiders and can vary greatly in morphology between different species.