The Collaborative International Dictionary of English v.0.48:

Pneumonophora \Pneu`mo*noph"o*ra\, n. pl. [NL., fr. Gr. ? a lung
   + fe`rein to bear.] (Zool.)
   The division of Siphonophora which includes the Physalia and
   allied genera; -- called also Pneumatophor[ae].
   [1913 Webster]