Aphonopelma iodius
ay-foh-no-PEL-muh eye-OH-dee-us
Species (binomial)
the violet-colored tarantula with silent foot-soles (lacking stridulating tarsal pads)
Literally: soundless foot-sole, violet-colored
Aphonopelma · genus name
| Part | Meaning | Language | Note |
|---|---|---|---|
| A- | not, without | Greek (a-) | privative prefix; the following ph- merges with it seamlessly |
| phono- | sound, voice | Greek (phon, -o) | connecting-vowel form phono- used before the next root |
| pelma | the sole of the foot; a stalk | Greek (=pelma, -to) | final element; nominative form pelma used as the ending of the compound |
iodius · specific epithet (adjective agreeing with neuter/masculine genus in Latin)
| Part | Meaning | Language | Note |
|---|---|---|---|
| iod- | violet | Greek (iod, -i, -o) | root referring to the violet color; iodine is named from the same root for its violet vapor |
| -ius | adjectival suffix: of, pertaining to, having the quality of | Latin | standard Latin adjectival ending; gives the epithet the sense 'violet-colored'; not listed as a separate entry in the dictionary |
Aphonopelma is a Greek compound noun (feminine gender in botanical/zoological Latin) formed with the privative prefix a-, the combining form phono- (sound), and the terminal noun pelma (foot-sole): literally 'soundless foot-sole', alluding to the absence of stridulating organs on the tarsal pads found in some other spiders. The specific epithet iodius is a Graeco-Latin adjective (Greek root iod- + Latin suffix -ius) meaning 'violet-colored', modifying the genus name and describing the spider's coloration. The epithet agrees in nominative singular with the feminine genus.
Pronunciation
- ay-foh-no-PEL-muh Penult 'pel' contains a short vowel followed by two consonants (l + m), so stress falls on the penult (rule 5).
- eye-OH-dee-us Penult 'di' has a short vowel followed by a single consonant; stress therefore moves to the antepenult 'o', whose vowel is long (followed by a single consonant then a vowel), confirming antepenult stress.
Other readings
A minority reading splits the genus as a- + phon- + -o- + pel- + -ma, taking pel- as 'clay/brown/dusky' rather than the full word pelma 'foot-sole'; but the longest dictionary match (pelma as a single lexical unit) is strongly preferred and matches the biological context (tarsal pad morphology).
The Latin adjectival suffix -ius is not a separate entry in the dictionary; it is treated here from general Latin grammar knowledge (confidence: high). Aphonopelma is a large New World tarantula genus; the name refers to the absence of stridulatory (sound-producing) structures on the tarsal foot-pads, contrasting with other spider genera that possess them. iodius refers to the violet or purple iridescent coloration seen in some individuals of this species.