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Bradford, 1969b

Short Description:

Comantenna crassa is an aetideid calanoid copepod known after female (3.80 mm in length) from the south-western part of the Pacific Ocean of near-bottom locality.

Taxonomic Description:

Female. (Description after Bradford (1969b) with modifications). Total length 3.80 mm. Cephalothorax nearly 4 times longer than abdomen. Th1 and cephalon fused, line of fusion is visible, Th4 and Th5 separated. Re2 A2 and Re3 fused, Ri2 Md with 4 setae, in other features Md and Mx2 typical of the genus. Ri1 Mxp with 3 medial setae. Mx1 with 14 (9 terminal big, 1 small and 4 setae on the posterior surface) setae on gnathobase; 4 and 3 setae on the second and third internal lobes respectively, 4 setae on protopodite near Ri base, 12 on Ri, 11 on Re and 4 on external lobe. Ri P1 external lobe reduced, seta on basipodite near Ri base absent. P1-P4 typical of the genus.

Male unknown.

Remarks. C. recurvata Grice and Hulsemann, 1970 is very similar, if not identical, to the above described species.

Vertical distribution:

Most possibly benthopelagic species, found at depths 1260-1234 m at T° 3.9°C (Bradford, 1969b).

Geographical distribution:

The south-eastern part of the Pacific Ocean, off New Zealand, off the Bay of Plenty (Bradford, 1969b).

Type locality: 37°07'S 177°14'E.

Material examined:

Species absent in the collections of the Zoological Institute, Russian Academy of Sciences, St. Petersburg.

Comantenna crassa