1.  needlefish(n = noun.animal) billfish, gar - elongate European surface-dwelling predacious fishes with long toothed jaws; abundant in coastal waters;
is a kind of teleost, teleost fish, teleostan
is a member of belonidae, family belonidae
has particulars: timucu

2.  needlefish(n = noun.animal) pipefish - fish with long tubular snout and slim body covered with bony plates;
is a kind of teleost, teleost fish, teleostan
is a member of family syngnathidae, syngnathidae
has particulars: dwarf pipefish, syngnathus hildebrandi, cosmocampus profundus, deepwater pipefish, sea horse, seahorse

   The European great pipefish (Siphostoma acus or Syngnathus acus); -- called also earl, and tanglefish. [1913 Webster]

needlefish, n. a garfish.