🕷️Phoneutria nigriventer

Phoneutria nigriventer (Keyserling, 1891)

巴西流浪蜘蛛（学名：Phoneutria nigriventer）又被稱為香蕉蜘蛛，因為這種蜘蛛常被發現躲藏於香蕉樹中。體長5-8公分，主要分布在中南美洲巴西、烏拉圭、巴拉圭、阿根廷。牠的毒性屬於神經毒，世界上毒性最強的蜘蛛之一，毒性大概可以毒死一只老鼠。會使神經失控、呼吸困難，嚴重時可能喪命。這種蜘蛛如果受到威脅會擺起跳舞姿勢來做出警告，最大體長約5公分，腿伸展全長最長可到15公分。巴西漫遊蜘蛛的毒液含有名為「PnTx2-6」的成份，可引致陰莖持續勃起症，持續達幾小時。根據國外網站，美國威斯康辛大學的科學家發現，經研究後，科學家成功利用毛蟲細胞基因改造製造出PnTx2-6，快至20分鐘內見效。其近親為巴西遊走蛛（Phoneutria fera）。

Text: Wikipedia, CC BY-SA 4.0.

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Measurements

Conservation status

Not evaluated

The IUCN Red List has not assessed Phoneutria nigriventer yet.

Key measurements

Body mass: not recorded
Body length: 0.04 m
Shoulder height: not recorded
Top speed: not recorded
Bite force: not recorded
Maximum lifespan: not recorded

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Facts and figures

Everything we know about the Phoneutria nigriventer

Typical adult figures. Where a value is an estimate rather than a measurement, it says so.

Body length

0.04 mrecord 0.05 m · World Spider Trait Databasetypical adult

World Spider Trait Database

Other figures ↓

Lyons et al 2025 trait data; Vetter & Hillebrecht 2008

Record: largest individual on record

Source: World Spider Trait Database · Pekar et al. 2021, Database 2021:baab064 · CC BY

Figures vary

0.03 mWorld Spider Trait DatabasePekar et al. 2021, Database 2021:baab064Lyons et al 2025 trait data; Martins & Bertani 2007
0.03 mWorld Spider Trait DatabasePekar et al. 2021, Database 2021:baab064Lyons et al 2025 trait data; Vetter & Hillebrecht 2008

Not recorded for Phoneutria nigriventer yet: body mass, shoulder height, top speed, bite force, maximum lifespan.

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In other languages

Phoneutria nigriventer (es), Phoneutria nigriventer (fr), Braziliaanse zwerfspin (nl), Brasilianische Wanderspinne (de), Phoneutria nigriventer (ca), Phoneutria nigriventer (cs) … and 19 more languages

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