Family PALUDICELLIDAE 



With chitinous tubes and partitions between club-shaped 2;ooids 

 Two genera — Palndicella 

 Pottsiella 



Order PHYLACTOLAEMATA 



Lophophore lyre-shaped or almost circular 

 Family FREDERICELLIDAE 



Colony branched, with chitinous, non-jointed tubes; lophophore 



almost circular 



One genus — Fredericella 

 Family PLUMATELLIDAE 



Colony branched, with chitinous, jointed tubes or lobed sacs; 



lophophore lyre-shaped; statoblasts without spines 



Two genera — Plumatella 

 Lophopus 

 Family LOPHOPODIDAE 



Colony small, compact; lophophore lyre-shaped; statoblasts oval, 



with spines on each end 



One genus — Lophodella 



Family CRISTATELLIDAE 



Colony with gelatinous matrix; lophopore lyre-shaped; state 

 blasts each with one or two completely encircling rows of mar' 

 ginal spines 



Two genera — Pectinatella 

 Cnstatella 



KEY TO THE PRINCIPAL GENERA OF MOSS-LIKE AND 

 JELLY-LIKE ANIMALS 



Individual animals usually with, but rarely without, tentacles; without 

 spicules 2. 



Without tentacles; usually with spicules in the colony mass 



Porifera or Sponges 3. 



Animals solitary, with the frequent exception of one or two sprouts or 

 buds, or else colonial, plant-like, with tentacles arising from over the 

 bodies of the individual animals; tentacles not retractile into a pro- 

 tective sheath, although often capable of great contraction; with one 

 opening to the digestive tract — Coelenterates 9. 



Animals colonial, resembling a small plant, a patch of moss or a mass of 

 jelly; tentacles in a circular or double horseshoe arrangement around 

 the mouth of each animal, partially or wholly retractile within a pro' 



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