Alomasoma Zenkevitch 1958 ...
Alomasoma sp. (Fig. 4B) MATERIAL EXAMINED. — Porcupine Abyssal Plain, BEN- GAL 5, Discovery 231, stn 13368#48, 48°49.64’N, 16°30.12’W, 4841 m, 17.III.1998, 1 ♀. DESCRIPTION Colour of trunk cream, proboscis white in preserved state. Proboscis truncate, 0.75 mm long, flattened and rounded d...
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| Format: | Text |
| Language: | unknown |
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Zenodo
2006
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| Online Access: | https://dx.doi.org/10.5281/zenodo.4893239 https://zenodo.org/record/4893239 |
| Summary: | Alomasoma sp. (Fig. 4B) MATERIAL EXAMINED. — Porcupine Abyssal Plain, BEN- GAL 5, Discovery 231, stn 13368#48, 48°49.64’N, 16°30.12’W, 4841 m, 17.III.1998, 1 ♀. DESCRIPTION Colour of trunk cream, proboscis white in preserved state. Proboscis truncate, 0.75 mm long, flattened and rounded distally; lateral margins curl inwards and unite proximally forming narrow lower lip ventral to mouth (Fig. 4B). Trunk oval (Fig. 4B), 2.5 mm long and 2 mm across broadest part. Integument smooth, thin and transparent. Ventral setae absent. Gonoducts one pair, sac-like with eggs which unite proximally and open to exterior by single genital aperture. Gonostomes basal in position. Intestine filled with fine sand not moulded into faecal pellets. Rest of internal organs damaged. REMARKS The present specimen has been assigned to the genus Alomasoma Zenkevitch, 1958 on account of the presence of two gonoducts which unite proximally and open to the exterior via a common gonopore. This sexually mature specimen with a trunk ... : Published as part of Biseswar, Ramlall, 2006, Additions to the deep-sea echiuran (Echiura) fauna of the North-East Atlantic, pp. 853-864 in Zoosystema 28 (4) on pages 862-863, DOI: 10.5281/zenodo.4689879 ... |
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