Tanaka, 1957a
Short description:
Bradyidius angustus is an aetideid calanoid copepod known after male only (total length 1.37 mm). Species recorded from Japanese waters only.
Taxonomic description:
Male. (Description after Tanaka (1957a) with modifications). Total length 1.37 mm. Cephalothorax 3 times longer than abdomen. Rostrum with weakly divergent rami. Points of posterior Th5 corners exceeding the posterior border of Abd1. A1 22(?)-jointed, reaching posterior border of Abd2. External spines at Re P1 short. Ri2-Ri3 P2-P4 with minute spinules on posterior surface. Terminal spines on Re P2-P4 with 22-24, 25 and 27 teeth respectively. P5 uniramous, 4- , 5-jointed, nearly the same in length.
Female unknown.
Vertical distribution:
The species was found in total haul from 1000 m (Tanaka, 1957a).
Geographical distribution:
Pacific Ocean: the Izu region (Tanaka, 1957a).
Type locality: the Izu region (Tanaka, 1957a).
Material examined:
Species absent in collections of the Zoological Institute, St. Petersburg. |
