ectolecithal
From ZooTerms (Dictionary of Invertebrate Zoology)
ectolecithal (adjective; Greek ektos, outside; lekithos, yolk of an egg): (Platyhelminthes: Turbellaria) Having cleavage modified by a special condition whereby yolk is stored in separate cells surrounding the oocytes as opposed to entolecithal as seen in other animal phyla whose eggs contain yolk.
