Calanoida-Neodiaptomus handeli. A-male; B-male metasome 6 and urosome (ventral view); C-segments 10-15 of right antennule (Greifantenna); D-male 5th legs (posterior view); E, F-antepenultimate segments with smooth and toothed spinous processes of right antennule, respectively.

Contexts in source publication

Context 1

... have a well-defined head that fuses posteriorly with one or two thoracic segments to form the cephalothorax; a thorax of six segments; and an abdomen or urosome of apparently two to five segments (a single segment may sometimes appear to be two segments) (Figs.1A, 2A). The paired appendages of the head consist of conspicuous antennules, small antennae, mandibles, maxillules, and maxillae. The paired thoracic appendages are maxillipeds on the first segment, well developed swimming legs on each of the succeeding thoracic segments, and a modified pair of legs on the last segment in the male (Fig. 2D). ...

Context 2

... (Figs.1A, 2A). The paired appendages of the head consist of conspicuous antennules, small antennae, mandibles, maxillules, and maxillae. The paired thoracic appendages are maxillipeds on the first segment, well developed swimming legs on each of the succeeding thoracic segments, and a modified pair of legs on the last segment in the male (Fig. 2D). This last pair of legs is important for identification of many calanoids. The abdominal segments lack appendages and end in the bifid caudal rami (Figs.1B, 2B). The broader head and thoracic section is referred to as the metasome, and the abdominal section constitutes the urosome (Figs.1A, ...

Context 3

... thoracic appendages are maxillipeds on the first segment, well developed swimming legs on each of the succeeding thoracic segments, and a modified pair of legs on the last segment in the male (Fig. 2D). This last pair of legs is important for identification of many calanoids. The abdominal segments lack appendages and end in the bifid caudal rami (Figs.1B, 2B). The broader head and thoracic section is referred to as the metasome, and the abdominal section constitutes the urosome (Figs.1A, ...

Context 4

... long antennules are sensory and are also used for locomotion and feeding. The right antennule of the male is distinctly modified and geniculate (bent similarly to the knee) and is used for grasping the female during copulation (Fig. 2C). Most calanoids are herbivorous. Movements of the antennae and mouth-parts during swimming create vortices that bring food to the maxillae where they are ...

Context 5

... of female diaptomids is not easy. It is best accomplished by examination of the last metasomal segment, the genital segment and the fifth leg (Fig. 1). Male diaptomids can be more easily identified by examination of the structure of the fifth leg and the right antennule (Greifantenna), especially the process on the antepennultimate segment (Fig. ...