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Free Content A New Littoral Hoplonemertean (Divanella Evelinae, Gen. Et Sp. Nov.) from the Coast of Brazil

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A new littoral hoplonemertean, Divanella evelinae, gen. et sp. nov., from the coast of São Paulo State, Brazil, is described and illustrated. Its most characteristic taxonomic feature is the presence of a cephalic neuroglandular complex not known from any other nemertean genus, and it is suggested that this may represent a highly specialised version of the more typical rhynchocoelan cerebral organ system. Other morphological characters include the presence of four large eyes, two pairs of dorsal cephalic grooves, a large proboscis, a rhynchodaeum that opens into the oesophagus, and the occurrence of ganglionic swellings on the lateral nerve cords.

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Document Type: Research Article

Publication date: 1973-12-01

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