Comprehensive Description

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(from Allan Hancock Pacific expeditions vol. 1 1943)


Key to Species

1. Dorsal surface green; central and accessory stylets curved; stylets long and slender; basis very long; body dark or pale green dorsally; whitish, yellowish, or very pale green ventrally....gracile
1. Dorsal surface brown or purplish; central and accessory stylets straight ....2

2. Stylets short, with swollen heads ; basis of central stylet swollen and rounded posteriorly; 11 proboscidial nerves; dark brown above, often with minute purple dots; flesh colored or yellowish white beneath....burgeri
2. Stylets without swollen heads, fluted longitudinally; basis of central stylet not swollen posteriorly; 16 proboscidial nerves; purplish or purplish brown from closely placed mottlings on dorsal surface ; ventral surface gray or yellowish....purpuratum


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

© Ritger, Rebecca

Source: Nemertea

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