Mammillaria yucatanensis

Origin: Mexico, Central America
Description: Dark red central spines. Pink flowers. Generally solitary.
Water requirements: Drought-tolerant; suitable for xeriscaping. Average Water Needs; Water regularly; do not overwater
Sun exposure: Full sun to partial shade/light shade
Watering: Low watering needs
Height: 6-12 in.
Hardiness: Zone 10: to 1.7 °C (35 °F) to Zone 11: above 4.5 °C (40 °F)
Bloom Color: Pink to Magenta (pink-purple)
Bloom Time: Mid Spring to late Spring/Early Summer

Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz