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Pelagic copepods of the family Oithonidae (Cyclopoida) from the east coasts of Central and South America / Frank D. Ferrari and Thomas E. Bowman

Author
Ferrari, Frank D
Bowman, Thomas E
Date
1980
Type
Electronic resources
Physical Description
iii, 27 p. : ill. ; 26 cm
Call number
QL444.C73 F37 1980
QL444.C73F37 1980
QL1.S664 no. 312
Summary
Twelve species of cyclopoid copepods of the family Oithonidae are described from eastern coastal waters of Central and South America from Belém, Brazil, to Belize City, Belize. Three are new species: Oithona bjornbergae, O. fonsecae, and Paroithona flemingeri. Sexes of O. plumifera are very similar in the copepoid V stage; the male characters (lack of rostrum, flap on cephalosome and pore signature, and extra outer setae on swimming leg exopods) are acquired during the final molt. Several morphological characters besides the traditional ones are used to separate species: the pattern of male integumental organs (pore signature), the armature of the female genital segment, and the modified endopod setae of the female fourth swimming leg. Spermatophores were found ventrally on urosome segments of O. oculata and O. plumifera. It is suggested that during mating the male grasps the female fourth legs with his geniculate first antennae as in Cyclops, and tactile recognition of the male pore signature is accomplished by the modified endopod setae of the female fourth leg.
Data Source
Smithsonian Libraries
Place
South America
Central America
Atlantic Ocean
Usage
Usage conditions apply