Zenkevitchiola Murina 1978
Creators
- 1. School of Biological and Conservation Sciences, University of KwaZulu-Natal (Westville Campus), Private Bag X 54001, Durban 4000 (Republic of South Africa) biseswar @ ukzn. ac. za
Description
Zenkevitchiola sp. (Fig. 5F)
MATERIAL EXAMINED. — East Equatorial Atlantic Ocean. BIOZAIRE 1, KGS 27, stn ZB-D, 05°49.937’S, 008°21.57’E, 4000 m, 10.I.2001, 1 ♀.
DESCRIPTION
Colour of proboscis is cream, trunk is beige in preservative. Proboscis is truncate 0.5 mm long with lateral margins curled ventrally forming a groove leading to mouth; distal extremity is curved and widened (Fig. 5F). Trunk is pear-shaped (Fig. 5F) 0.7 mm in length and 0.4 mm across broadest part. Integument is thin and transparent. Papillae minute, round, visible at anterior end of trunk, rest of integument is smooth. Ventral setae absent. Internal organs not seen, probably damaged due to poor preservation.
REMARKS
The specimen on hand has been tentatively assigned to the genus Zenkevitchiola Murina, 1978 on account of the absence of ventral setae, the thin and transparent integument and the structure of the proboscis. As the specimen is minute it is very likely that it is still a juvenile. The proboscis of the present specimen resembles that of Z. brevirostris Murina, 1978, described from a single female collected near southern Tasmania (Murina 1978). According to Murina (1978) and Edmonds (1987), the distal extremity of the proboscis is curved and widened. The monotypic genus Zenkevitchiola is characterised by the presence of a single gonoduct located on the right side of the nerve cord, a basally located gonostome and tubular anal vesicles that taper distally.
A closer study of additional material in the future will help resolve its taxonomic position. The species Z. brevirostris has been recorded and redescribed from the North-East Atlantic by Biseswar (2006). Its discovery in the East Equatorial Atlantic Ocean is a new record for the region and extends its range of distribution considerably.
Notes
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Bonelliidae
- Genus
- Zenkevitchiola
- Kingdom
- Animalia
- Order
- Echiuroidea
- Phylum
- Annelida
- Scientific name authorship
- Murina
- Taxon rank
- genus
- Taxonomic concept label
- Zenkevitchiola Murina, 1978 sec. Biseswar, 2010
References
- MURINA V. V. 1978. - [New and rare echiurids of the family Bonelliidae]. Academia Nauk USSR. Trudy Instituta Okeanologii im P. P. Shirshova 113: 107 - 119 (in Russian).
- EDMONDS S. J. 1987. - Echiurans from Australia (Echiura). Records of the South Australian Museum 32 (2): 119 - 138.
- BISESWAR R. 2006. - Additions to the deep-sea echiuran (Echiura) fauna of the North-East Atlantic. Zoosystema 28 (4): 853 - 864.