Posterior wall with dorsal membranous area of the interramal sclerites smooth.
2F) with the dorsal membranous area of the interramal sclerites smooth.
is characterized by having 15-16 thoracic chaetigers with four or five rows of uncini and up to three papilliform postchaetal processes on neuropodial lobes by the abdominal parapodia bearing flail-tipped neurochaetae, and by the presence on anterior-most abdominal chaetigers of interramal cirri and a low number of subpodial and stomach papillae.
Interramal cirri present on anterior-most abdominal chaetigers (Fig.
Submental and interramal
vibrissae are either missing or inconspicuous.
lobe of posterior wall with dorsal surface minutely serrate, ventroanterior margin sublinear, extending far beyond ventroanterior margin of interramal
sclerite; medial region U-shaped, broadly touching base of ovipositor, without sigmoid process (Fig.
4F, G); interramal
lobes of posterior wall lobate with spiculate surface (Fig.
5c, d); base of medial portion of the interramal
sclerite thickened (Fig.
18): Bursa copulatrix mostly membranous, with sparsely distributed, minute spinules anteriorly; sclerotized rings large, oval, thin-rimmed; posterior wall spinulate posteriorly, with narrow interramal
Posterior wall mostly membranous, with the lateral interramal
plates sclerotized (Fig.
6); lobe of interramal
sclerite greatly elongated and paddle-shaped, located at the middle of sclerite (Fig.
3); lateral margin of posterior wall with dorsal lobe of the interramal
sclerite (= "K" structure of Slater, 1950) gently curved (Fig.