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MarBEF Data System |
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WoRMS taxon details
original description
Ditlevsen, Hjalmar. (1917). Annelids. I. <em>The Danish Ingolf Expedition.</em> 4(4): 1-71 + corrigenda, plates I-VI. Copenhagen: H. Hagerup., available online at https://biodiversitylibrary.org/page/2228110
page(s): 67-69 [details] 
context source (Deepsea)
Ditlevsen, Hjalmar. (1917). Annelids. I. <em>The Danish Ingolf Expedition.</em> 4(4): 1-71 + corrigenda, plates I-VI. Copenhagen: H. Hagerup., available online at https://biodiversitylibrary.org/page/2228110 [details]
basis of record
Bellan, G. (2001). Polychaeta, <i>in</i>: Costello, M.J. <i>et al.</i> (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. <em>Collection Patrimoines Naturels.</em> 50: 214-231. (look up in IMIS) [details]
From editor or global species database
Diagnosis Original diagnosis by Ditlevsen (1917: 67), for the family Otopsidae: "Forms of medium size with the body of nereidiform or euniciform aspect, consisting of a considerable number of segments. Body somewhat flattened; the dorsal side only a little convex, the ventral side provided with a well marked, rather deep depression extending along the mid-ventral line through about the whole length of the animal. The cephalic lobe is well developed, its longitudinal axis forming about a right angle with the longitudinal axis of the body. Two tentacles (short and thick) are present; in the median line of the cephalic lobe is situated a rather small, unpaired tentacle (possibly a nuchal organ?). Pharynx longitudinally folded; chitinous jaws and paragnaths wanting. The parapodium is well developed, long, muscular and highly movable. Acicles present in two bundles, a ventral, consisting of 3, and a dorsal, consisting of 2 acicles. Dorsal and ventral cirrus developed, lamellifonn. Bristles uncompound, hairy, exceedingly delicate." [details]
Etymology Not stated, unknown. [details]
Homonymy Otopsis Ditlevsen, 1917 is not a homonym of Otopsis Rafinesque 1815 (= nomen nudum) (see ICZN, 1999). [details]
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