. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. COE : NEMERTEANS OF WEST AND NORTHWEST COASTS. 239. Fig. 46.— AmpMpoms angulatus. Dorsal side of anterior portion of body, showing markings on head and arrangement of ocelli. measurements. Often sexually mature when 15-25 mm. in length, and 2-8 mm. in width. Color.— Dark brown, reddish In-own, or purplish brown on dorsal surface, Anth paler margins and conspicuous, angular whitish spot on each side of head (PI. 1, fio;. b\. continuous with color of ventral surface. A narrow V-shaped whitish marking extends across body
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. COE : NEMERTEANS OF WEST AND NORTHWEST COASTS. 239. Fig. 46.— AmpMpoms angulatus. Dorsal side of anterior portion of body, showing markings on head and arrangement of ocelli. measurements. Often sexually mature when 15-25 mm. in length, and 2-8 mm. in width. Color.— Dark brown, reddish In-own, or purplish brown on dorsal surface, Anth paler margins and conspicuous, angular whitish spot on each side of head (PI. 1, fio;. b\. continuous with color of ventral surface. A narrow V-shaped whitish marking extends across body just back of head, and a narrow transverse line is situated on each side near tip of snout (Text-fig. 46). Ventral surface whitish with tinge of gray or purple (PI. 1, fig. 6). Ocelli.— A pair of elongated clusters containing upwards of 20 small ocelli are situated on the antero-lateral bor- ders of the head, and a smaller, poste- rior group of 8 to 15 ocelU lies in or near the angular white spot on each lateral margin of head (Text-fig. 46). Proboscis. — Large and thick ; pale reddish or salmon in color; armed with moderately slender central stylet and 2 (rarely 4) pouches of accessory stylets, each containing 8 to 7 rather slender stylets. Basis about the same length as stylets (Text-fig. 47). Usually there are 18 proboscidial nerves, although 19 or 20 are " sometimes found, and I have seen a single specimen from Maine which had but 17. Cerebral sense organs well developed, situated immediately in front of brain. Cephalic and suhmuscular Fig. il.—AmpJiijiorus angulatus. Out- n i i line of stylet apparatus. glands remarkably well devel-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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