IUCN threat status:

Not evaluated

Comprehensive Description

Read full entry

General Description

(from Coe, W. R. (1901). Papers from the Harriman Alaska Expedition. XX. The nemerteans.. Proc. Wash. Acad. Sci.. 1-110.)

Body not very small. Proboscis sheath usually reaches nearly or quite to posterior end of body. Proboscis large; central stylet well developed. Ocelli usually numerous.

Short and broad. Usually two pouches of accessory stylets with 5 to 7 rather slender stylets each. Dark purplish or chocolate-brown above, with a triangular white spot on each side of the head; ventral surface pinkish or flesh-color.

Doubtfully referred to this species by Griffin; several varieties obtained. This species is abundant along the whole coast, from Bering Strait to Puget Sound.

(from Coe, W. R. (1901). Papers from the Harriman Alaska Expedition. XX. The nemerteans.. Proc. Wash. Acad. Sci.. 1-110.)
This large and conspicuous species is generally easily recognized by its clear dark purplish or chocolate-brown color above, with pale margins and a trapezoidal or triangular white spot on each side of the head and usually with a narrow white line across the neck; and by the pinkish or flesh-colored lower surface. Ocelli in two or more rows in an elongated groove on each antero-lateral margin of the head, and a pair of small sub-dorsal clusters on the transverse white nuchal band.
In ordinary state of contraction the body is rather short and stout. When disturbed it can become so greatly thickened anteriorly that its transverse diameter is fully 1/3 as great as its length. In extension the body is but moderately elongated, and is relatively broad and flat. It contracts very much s does a leech.
The Alaska specimens are commonly larger than have been recorded elsewhere, often measuring 200 mm or more in length and 10 mm in width.

Trusted

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Ritger, Rebecca

Source: Nemertea

Belongs to 0 communities

This taxon hasn't been featured in any communities yet.

Learn more about Communities

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!