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Sands,
D.D.: Crypsis in Corydoras (Pisces: Siluriformes: Callichthyidae), pp. 13-20.
Cryptic pattern sharing amongst a number of
sympatric species of Corydoras has yet to be fully
understood. The possible development of pigment patterns alongside crypsis
behaviour if discussed. Laboratory research details the behaviour of Corydoras
adolfoi Burgess, 1982, and Corydoras imitator Nijssen & Isbrücker, 1983, sympatric in a tributary of the Upper
Rio Negro, Brazil. Data, based on observations of combined species groups has
shown that both freeze in the presence of a predator model or a live predator.
Predator-prey reactions are recorded for both species when they are together
and grouped with allopatric Corydoras species.
Kaspiris,
P., A. Argyriou and A. Vertsiotis: Food of Hygophum benoiti (Pisces: Myctophidae) in
Korinthiakos Gulf (Greece), pp. 21-24.
The
present study examines the diet of Hygophum benoiti (Cocco, 1838) from specimens collected
in May and July 1990 in the Korinthiakos Gulf. This mesopelagic fish migrates
during the night towards the surface where zooplankton is more abundant and
from which this species is feeding.
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