Sabellidae sp.741

Edited by gljpaterson on Fri, 01/06/2012 - 22:39

Family:

Sabellidae

Species binomial name, or informal name:

sp 741

Authority:

Gordon Paterson

Material Examined:

Stn 4P 0-2 cm, -10.0362 S: 76.002 E, 5320 m, 1 specimen Part of exploration of manganese nodule areas of the Indian Ocean Samples were taken with a box core which was subsequently subsampled

Voucher: Ocean Basin:

Indian Ocean

Voucher: Cruise/Expedition:

YMG 97

Voucher: Location:

-10.0362 S: 76.002 E

Voucher: Depth:

5320 m

Voucher: Sample:

Stn 4p

Voucher: Repository:

YMG

Description:

Body short, length 0.6–1 mm; 8 thoracic and five abdominal
chaetigers. Collar present, straight but not complete, ventral lobes maybe
present; peristomium not protruding beyond collar. Last segment pointed with a
rounded tip but not excavated. Radioles short with distinct branches and short
secondary pinnules.

Thoracic chaetigers: notopodia bilimbate with expanded
region about half way along chaete, bulge symmetrical, free end thin pointed,
2-3 per podia; neuropodia uncini one main fang with four rows of smaller teeth,
uncini not seen in Ch1 (may be too small) up to four in proximal chaetigers but
1-3 near abdominal chaetigers.

Abdominal chaetigers: notopodial uncini 4+ teeth in a single
row, 2-3 per podia; neuropodia bent capillaries.

Methyl green staining: edge of each chaetiger highlighted
with stain with clear bands between.

Remarks:

This specimen differs from Sabellidae sp.741? in the form of the thoracic notochaetae which have shorter tips.