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Image of Ovicides davidi Shields & Segonzac 2007
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Ovicides davidi Shields & Segonzac 2007

Associations

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Cyanagraea praedator
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Keen, Eric
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Keen, Eric
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General Description

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Worms small, 1-10 mm long by 170-250 lm wide; found in mucous sheaths attached to host. Two cup-shaped ocelli dorsal, at anterior

end. Proboscis apparatus ventral to cerebral ganglion. Anterior proboscis chamber pyriform, 15-18 lm long. Basis robust, 30-32 lm long by 8-10 lm wide. Single stylet on

basis, 7-9 lm long. Stylet to basis ratio, 0.313-0.323. Two accessory stylet pouches anterolateral to stylet bulb, with one developing stylet (7-9 lm) in each. Middle proboscis

chamber 20-23 lm in diameter, glandular in appearance. Posterior proboscis chamber glandular, 43-50 lm long by 18-25 lm wide. Proboscis sheath greatly reduced. Body

musculature weakly developed with one band of circular muscles, one band of longitudinal muscles. Musculature with crossed myofibrils anterior to ocelli. Submuscular

glands distinct, eosinophilic, 14 (11-19) lm long by 8 (8-9) lm wide; numerous; as a field from ocelli to near anus, thinning in number anterior to ocelli. In cross section,

submuscular glands arrayed in three interspersed rows around the body, interior to muscles. Cephalic glands present; as a diffuse field, anterior to cephalic ganglia, dorsal

to esophagus; comprised of enlarged, weakly basophilic submuscular cells, leading to a frontal organ. Cephalic glands sometimes possessing dense, darkly basophilic

granules. Posterior nerve in one specimen ventral to 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 PL 1592, Nasse F2, 4 May 2004,

SEPR, Pagodes vent site, 13858.969S, 112828.16W

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