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Sea Urchin Embryology Set, Living

(in stock)


Students can watch the fascinating life cycle of sea urchins right in your classroom with these 14 fertile urchins (our choice of Eucidaris tribuloides or Lytechinus variegatus). We guarantee at least 50% of the urchins to be ripe on arrival and recommend that they be used the day of arrival or immediately the next day to avoid reabsorption of gametes. Early cleavage through pluteus larvae. Urchins are not sexed, but the male-to-female ratio is typically about 1:1.

Note: Order at least 2 weeks in advance of requested delivery date. Orders are shipped directly from our vendor located on the Florida coast. Orders are shipped on Mondays and Tuesdays for overnight delivery. Live delivery is not guaranteed for marine specimens shipped out of the continental United States.


Shipping Information or Purchase Restrictions
  • Exclamation icon USDA or USDOT regulations restrict this item from shipping to these locations: Alaska. This is a special order item that requires additional time for culturing and processing before it ships. Arrival timeframes are available during Checkout.
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