BRYOZOA. 107 



Classification.! 



Family HETBKOTKYPiDiE, Ulrich. 



Genera: Heterotrypa Nicholson, Dekayia Edwaeds and Haime, Petigopora U., DekayellaXJ. 



Family Callopoeid^, Ulrich. 



Geaera ; Callopora Hall, Calloporella U., ? Aspidopora U. 



Family Trematopoeid^, Ulrich. 



Genera : Trematopora Hall, Nicholsoitella U., Constellaria Datsta, Stellipora Hall, Idiotrypa U. 



Family Batostomellid^, Ulrich. 



Genera : Batostomella U., Stenopora Lonsdale, Anisotrypa U., Bythopora Millee and Dybe, Cal- 

 loirypa HALL, Leioclema U. 



Family AsiPLEXOPOEiDiE, Ulrich. , 



Genera; Amplexopora U., Monotrypella U., Petalotrypa U., Ataetopora U., Leptotrypa TJ., fDisco- 

 trypa U. 



Family Diploteypid^, Ulrich. 



Genera: Dip'ofrj/'pa Nicholson, ilfonoiri/pa Nicholson, Botosioma U., 9 Hemiphragma JJ . 



Family Ceeamopoeid^, Ulrich.' 



Genera: Ceramopora Hall, Ceramoporella U., Crepipora U., Diamesopora Hall, Chiloporella U., 

 Ceramophylla U., Anolotichia TJ., Spatiopora U. 



Family Fistulipobid^e, Ulrich. * 



Genera : Fistulipora McCoy, Eridopora U., Chilotrypa U., Meekopora U., Strotopora U., Lichenotrypa 

 U., Buskopora U., Selenopora Hall, Pinacotrypa U. 



Family BoTETLLOPoEiDiE, Miller. 



Genus : Botryllopora Nicholson. 



Suborder CYCLOSTOMATA, Busk. 



Zocecia very simple, tubular, with a plain, inoperculate, circular orifice ; wall 

 thin, minutely porous. Marsupia and appendicular organs wanting. 



Family Txibulipoeid^, Busk. 



Genera: Stomatopora Beonn, Proboscina Audouin, Berenicea Lamoueoux, Diastoporina U., 

 9 Hedrella Hal.t,, 9 Hernodia Ka-li., ?i2epfana Kollb. 



Family FsoNDiPOEiDiE, Reuss. 

 Genus : Seenellopora Uleich. v 



Family EntalophoeiDjE, Reuss. 

 Genera : Clonopora Hall, Mitoclema U:, Diploclema U., Protocrisina U., ? Cystopora Hall. 



Suborder CTBNOSTOMATA, Busk. 



Zooecia usually isolated and developed by budding from the internodes of a distinct 

 tubular stolon or stem. Orifice terminal, closed by an operculum of setse. Zoarium 

 horny or membranaceous. Marsupia wanting. 



Family Ascodictyonid.e, Ulrich. 

 Genera : Ascodictyon Nicholson and Ethkidge, Rhopalonaria U., Vinella U. 



