The Collaborative International Dictionary of English v.0.48:

Anchovy pear \An*cho"vy pear`\ ([a^]n*ch[=o]"v[y^] p[^a]r`).
   (Bot.)
   A West Indian fruit like the mango in taste, sometimes
   pickled; also, the tree (Grias cauliflora) bearing this
   fruit.
   [1913 Webster]

WordNet (r) 3.0 (2006):

anchovy pear
    n 1: West Indian tree bearing edible fruit resembling mango
         [syn: anchovy pear, anchovy pear tree, Grias
         cauliflora]
    2: West Indian fruit resembling the mango; often pickled [syn:
       anchovy pear, river pear]