Abstract:
The genus Helcogrammoides comprises three species of small, cryptic shorefishes, H. antarcticus, H. chilensis,
and H. cunninghami. All three species inhabit shallow water along exposed rocky coasts. Specimens reported herein extend
the known distributions of H. chilensis and H. cunninghami to the vicinity of Lima, Peru, approximately 1 600 km north
of their previously reported northernmost records in Chile. Helcogrammoides chilensis and H. cunninghami occur sympatrically
over most of their ranges in Peru and Chile and are frequently taken together in the same field collections. Lectotypes
are designated for H. chilensis and H. cunninghami. Diagnoses and an identification key are provided for the
species.
