Bruunellia, Zenkevitch, 1966

Biseswar, Ramlall, 2006, Additions to the deep-sea echiuran (Echiura) fauna of the North-East Atlantic, Zoosystema 28 (4), pp. 853-864 : 863-864

publication ID

https://doi.org/ 10.5281/zenodo.4689879

DOI

https://doi.org/10.5281/zenodo.4893241

persistent identifier

https://treatment.plazi.org/id/03F53669-FFEC-FFF5-FCDE-BC6C2088C358

treatment provided by

Felipe

scientific name

Bruunellia
status

 

Bruunellia View in CoL sp.

( Fig. 4C View FIG )

MATERIAL EXAMINED. — Porcupine Abyssal Plain, BEN- GAL 5, Discovery 231, stn 13368#47, 48°51.63’N, 16°25.18’W, 4844 m, 16.III.1998, 1 ♀.

DESCRIPTION

Colour of proboscis and trunk is cream in preserved specimen. Trunk is oval ( Fig. 4C View FIG ), 1 mm long and 0.4 mm at broadest part. Proboscis almost as long as trunk, round in transverse section and without ventral groove ( Fig. 4C View FIG ). Mouth located at base of proboscis. Integument is smooth, thin and transparent, coils of gut visible. Ventral setae absent.

Internally, there is a single, tubular gonoduct on right side of nerve cord with basally located gonostome. Gut contents moulded into oval faecal pellets. Cloacal bulb is present. Anal vesicles not seen, probably damaged.

REMARKS

The present specimen is extremely small with a trunk length of only 1 mm and it seems very likely that it is a juvenile. This specimen has been assigned to the genus Bruunellia on account of the structure of the proboscis which is round in cross-section. There is only one species in the genus Bruunellia , namely, B. bandae described by Zenkevitch (1966). The original description provides no information on the gonoducts, anal vesicles and blood vascular system. A detailed study of additional material in the future will shed more light on its taxonomic position.

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Echiuroidea

Family

Bonelliidae

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