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Theraphosidae

Straight-Horned Baboon Tarantula

Ceratogyrus marshalli
IntermediateHuman-verified sheet

Temperature

24–28°Ambient

One ambient band, 24–28°C. This sheet states no warm side, no cool side and no night figure, so none are shown.

Humidity

50–60%Target RH
Check your setup against this sheet
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The numbers

Enclosure
20 × 20 × 25 cm
Diet
Crickets, roaches, locusts; occasional superworm · Slings 2–3×/week; juveniles ~weekly; adults every 7–14 days
Temperature
24–28°C (75–82°F)
Humidity
50–60% (semi-arid; water dish)

Identity

Order / Family
Araneae
IUCN / CITES
Not evaluated (IUCN); not CITES-listed
Difficulty
Intermediate–Advanced
Commonality
Common – striking horned baboon, widely captive-bred
Adult size
Body ~5–6 cm; leg span ~13–14 cm
Lifespan
Females ~12–15 yr; males ~3–4 yr
Growth rate
Medium–fast
Activity & niche
Fossorial burrower; semi-arid; heavy webber at burrow mouth
Temperament
Fast and defensive; readily threat-poses; hardy
Venom / defense
No urticating hairs; medically significant venom – experts only; fast and defensive
Price (THB)
500–1,500 ฿ (indicatif)

Enclosure and conditions

Temperature
24–28°C (75–82°F)
Humidity
50–60% (semi-arid; water dish)
Min. enclosure
Adult ~20×20×25 cm; deep dry substrate, fossorial
Substrate
10–15 cm mostly dry coco fibre/topsoil
Hides / decor / water
Starter burrow under cork, water dish; light misting only

Diet

Staple food
Crickets, roaches, locusts; occasional superworm
Feeding frequency
Slings 2–3×/week; juveniles ~weekly; adults every 7–14 days
Supplements
None – gut-load feeders only

Behaviour and handling

Handling
Not recommended – fast, defensive, potent venom; observation only
Communal
No – solitary and cannibalistic
Defense / stress signs
Threat posture, striking, bolting into burrow; no hair-kicking

Reproduction

Reproduction
Oviparous; 1 egg sac, ~60–120 spiderlings; medium-growth slings

Common health problems

Common health issues
SignsMold if too damp, dehydration if no water, fall/rupture, DKS from pesticides
Red flags / quarantine
SignsQuarantine imports for mites/nematodes; watch DKS, death curl; avoid over-misting

Good to know

  • Its tall, straight foveal 'unicorn horn' points skyward – the most dramatic horn of any hobby tarantula

Others in this group

Sources