Source : Webster's Revised Unabridged Dictionary (1913)

Salpa \Sal"pa\ (s[a^]l"p[.a]), n.; pl. L. {Salp[ae]} (-p[=e]),
   E. {Salpas} (-p[.a]z). [NL.: cf. L. salpa a kind of
   stockfish.] (Zo["o]l.)
   A genus of transparent, tubular, free-swimming oceanic
   tunicates found abundantly in all the warmer latitudes. See
   Illustration in Appendix.

   Note: Each species exists in two distinct forms, one of which
         lives solitary, and produces, by budding from an
         internal organ, a series of the other kind. These are
         united together, side by side, so as to form a chain,
         or cluster, often of large size. Each of the
         individuals composing the chain carries a single egg,
         which develops into the solitary kind.

Source : WordNet®

salpa
     n : minute floating marine tunicate having a transparent body
         with an opening at each end [syn: {salp}]
     [also: {salpae} (pl)]

salpae
     See {salpa}