R. C. CHATTERJI                                     325

oesophagus 0.6-0.72 and posterior portion 2-2.3 long. Nerve ring 0.27-0.35
from anterior end. Posterior end of body coiled ventrally and provided with
two well-developed caudal alae. Caudal papillæ consisting of four pairs of
preanal and six pairs of postanal papillæ; of the latter, two small pairs near

[NLS note: a graphic appears here - see image of page]

FIG. 2
Acuaria (Cheilospirura) hamulosa
Posterior end of male ; Lateral view.