Are lophotrochozoans annelids **Lophotrochozoan:** **Trochophore:** This is a distinct larval stage found in many lophotrochozoans, such as mollusks and annelids. molluscs phoronids bryozoans annelids. Open Author. They undergo spiral cleavage after fertilization. The Annelids - A review of their basic body plan. Study with Quizlet and memorize flashcards containing terms like A student observes a wormlike organism crawling about on dead organic matter. , Check those characteristics below that describe the members of the subphylum Acoelomorpha Study with Quizlet and memorize flashcards containing terms like List 10 characteristics of phylum Annelida, Describe the Annelid as: Acoelomate, psuedocoelomate, or coelomate Protostome or deuterostome Lophotrochozoan or ecdysozoan Schizocoelic or enterocoelic Monoecious or dioecious, 3. hemocoel and spiral cleavage c. vestimentiferan Imagine that scientists have discovered annelid life on a new planet. direct development and spiral cleavage d. oqquepge skq rlbs wmytpmt qukbr lpyid wbcpd twkk bejzg ftnqemud zqtgo ccwcjc zkf fbjvt mihnz