Erroneous— Hygrosoma luculentum (Agassiz, 1879)

Reports for the Azores:

non Phormosomum luculentum Agassiz—Koehler 1895a: 224, 1895b: 228 [misidentified Hygrosoma petersii].

Type locality: Pacific.

See: Mortensen (1935: 215–219, 123, 124, pl. 21, pl. 22, figs. 1–2, pl. 78, figs. 22–23).

Occurrence: Pacific and Indian Oceans (Mortensen 1935).

Depth: 400– 2,000 m (Mortensen 1935).

Remarks: in his preliminary notes, Koehler (1895a: 224; 1895b: 228) identifies specimens taken in Azorean waters by Hirondelle and Princesse Alice as the Indo-Pacific H. luculentum. Later, Koehler changed his previous determination first in 1889 to P. uranus (Koehler, 1898) and finally in 1909 to Hygrosoma petersii (see also remarks under H. petersii).