Ampharetinae Malmgren, 1866
Lysippe Malmgren, 1866
Lysippe sp. 2
Voucher. Sea Lion: station 23MFC
Diagnosis. Voucher is an incomplete specimen, body robust, thorax somewhat inflated, pale yellow in alcohol; 18mm long and 2mm wide. Thorax consists of paleae bearing segment and 16 chaetigers, 13 of these uncinigers; abdomen posteriorly incomplete only 9 uncinigers present. First three notopodia smaller than on subsequent segments, close together, second and third pair displaced dorsally. Abdominal segments without rudimental notopodia or neuropodial cirri, torus of first abdominal unciniger not particularly reduced. Pygidium not observed.
Prostomium Ampharete-type, trilobed - the middle lobe almost square-shaped only slightly wider than lateral lobes, without glandular ridges, with distinct, brown pigmented spots. Lower lip crenulated with approximately 20 folds. Paleae present, arising from cylindrical lobes, about 10 per fascicle, pale yellow in colour, very fine, small (can be overlooked), slightly shorter than notochaetae, tapering into thin tip. Four pairs of branchiae 2 + 2 arrangement, two groups separated by a distinct median gap; only 2 styles of branchiae still attached, cylindrical, distinctly annulated throughout its length; branchiophores of equal size, connected laterally giving impression of raised ridge and obscuring prostomium dorsally.
Notochaetae few, long, smooth, limbate. Thoracic uncini with 4-5 small teeth above rostral tooth arranged in two alternating vertical rows; first two abdominal neuropodia of thoracic type; following abdominal neuropodia with different uncini, each square-shaped with 5 teeth in lateral view, elongated in frontal view with about 3-4 irregular vertical rows of small teeth.
Remarks. This species differs from FI Lysippe sp. 1 in size and body shape, presence of distinct pigmented spots on prostomium and shape of uncini (see Ampharetidae overview table). For other comments, see remarks section of Lyssipe sp. 1.