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Image of Ovicides jasoni Shields & Segonzac 2007
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Ovicides jasoni Shields & Segonzac 2007

Associations

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Austinograea alaysaea

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Keen, Eric
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Keen, Eric
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General Description

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Juveniles or regressed adults with observations from 10 fixed and sectioned specimens from Austinograea alayseae from dives #142, 143, 144, 151 and 152. Worms

1-3 mm long by 160-170 lm wide; found in mucous sheaths adhering to host crabs. Ocelli absent. Proboscis apparatus lateral to foregut. Anterior proboscis chamber pyriform, 15 (15-17) lm long 3 15 lm in width at base. Basis robust, intensely eosinophilic, 25 (23-25) lm long by 8 (7-9) lm wide. Single dagger-like stylet on basis, 12 (10-13) lm long, with hub 4 lm wide. Stylet to basis ratio, 0.480 (0.480-0.520). One stylet (9-12 lm) developing within each of two accessory stylet pouches anterolateral to stylet bulb.

Accessory stylet pouches granular, eosinophilic. Middle proboscis chamber circular, 10-13 lm in diameter, granular or layered in appearance. Posterior proboscis chamber

intensely eosinophilic, granular, 25 (20-26) lm long by 15-17 lm wide. Proboscis sheath weakly developed. Body musculature weakly developed with one band of circular

muscles, one band of longitudinal muscles. Submuscular glands numerous, eosinophilic, 8-12 lm in diameter; as a field from anterior to near anus, fewer in number anterior

to cerebrum. In cross section, submuscular glands arrayed as a single row around the body. Cephalic glands absent or reduced. Posterior nerve not observed at level of cloaca.

Gonads undeveloped

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cc-by-nc
copyright
Keen, Eric
author
Keen, Eric
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Nemertea

Type Locality

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Dive #144: 21 May 2005, Lau Basin, Tui

Malila vent site, 21859.349S, 176834.099W

license
cc-by-nc
copyright
Keen, Eric
author
Keen, Eric
partner site
Nemertea