RHINODRILIDAE Benham, 1890 sensu James (2012)

James, Samuel W., Bartz, Marie L. C., Stanton, David W. G., Conrado, Ana C., Dupont, Lise, Taheri, Shabnam, Silva, Elodie Da, Cunha, Luís & Brown, George G., 2019, A neotype for Pontoscolex corethrurus (Müller, 1857) (Clitellata), Zootaxa 4545 (1), pp. 124-132 : 127

RHINODRILIDAE Benham, 1890 sensu James (2012)

Diagnosis. Crassiclitellata with one oesophageal gizzard in vi; paired, extra-mural calciferous glands in some or all of segments vii–xv but not only one pair in xi or xii; typhlosole ribbon-shaped, variously folded or pouched. Vascular system with dorsal and ventral trunks, supra-esophageal trunk, paired extra-esophageal trunks median to the hearts, subneural vessel adherent to body wall. Holonephridia stomate, vesiculate in intestinal region. Dorsal pores lacking. Spermathecae, adiverticulate, in front of the gonadal segments. Male pores behind female pores, microscopic if primary; or if macroscopic then connected to intramural copulatory chambers.