Borowski, Christian. (1995). New records of Longosomatidae (Heterospionidae) (Annelida, Polychaeta) from the abyssal southeast Pacific, with description of Heterospio peruana sp.n. and general remarks on the family. Mitteilungen aus dem Hamburgischen zoologischen Museum und Institut. 92 (Suppl. 1): 129-144.

67113

Borowski, Christian

1995

92 (Suppl. 1): 129-144

Publication

World Polychaeta Database (WPolyD). No online link

Available for editors   [request]

Longosomatidae (= Heterospionidae) collected from abyssal depths of about 4150 m in the Peru Basin, eastern South Pacific, included 16 specimens of Heterospio peruana sp. n., closely related to H. sinica Wu & Chen, 1966, and one indeterminate specimen of another species. The species is characterized by a short branchiate thorax with 9 setigers with up to 4 or 5 pairs of branchiae, a midbody region with at least 7 strongly elongated setigers, and a short, inflated posterior region with 6 segments, first 5 of which setigerous. Setae of the thoracic region are exclusively capillaries; setae of elongated setigers form cinctures from setiger 10 and comprise aristate spines in addition to subuluncini-like capillaries from setiger 10 or 11; the last elongated setiger lacks aristate spines. The indeterminate specimen is an anterior fragment with 8 thoracic setigers and without modified setae (e.g., aciculars) or cinctures in midbody segments. Literature data on taxonomic characters of longosomatids are compiled.

Pacific Ocean

Systematics, Taxonomy

Annelida
Polychaeta

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