Ehrenberg, 1831
Heteronemertea with a single pair of horizontal lateral cephalic slits, posteriorly enlarged to form wide bays; ciliated cerebral canals emerge from ventral wall of cephalic bays; proboscis containing two (outer circular, inner longitudinal) or three (outer longitudinal, middle circular, inner longitudinal) muscle layers and 0-2 muscle crosses; rhynchocoel wall circular muscles not interwoven with body wall musculature; dorsal fibrous core of cerebral ganglia branched into upper and lower forks only at rear; nervous system with neither neurochords nor neurochord cells; ganglionic cell layer of brain lobes usually not separated from body wall musculature by distinct neurilemma; foregut with or without splanchnic muscles, if present variably composed of circular and/or longitudinal fibres; dermis variable, usually with distinct connective tissue zone separating glandular region from body wall musculature; caudal cirrus present; cephalic glands normally well developed, occasionally weakly formed or absent; frontal organ usually present; eyes present or absent; sexes separate.
Source: Gibson, 1982.
The following species of this genus occur in the region:
Micrura fasciolata
Micrura purpurea