Image de échiuriens

Description :

Figure 2.Arhynchite hayaoi sp. n., paratype (NSMT-Ec 104). A internal morphology of the anterior end of the trunk, dorsal view; an asterisk indicates the position of the gonostome B gonostome and gonostomal lip, magnified C internal morphology of the posterior end of the trunk, dorsal view. Abbreviations: ac alimentary canal; av anal vesicle; cg ciliated groove; cr crop; dv dorsal vessel; e esophagus; g gonoduct; gl gonostomal lip; gs gonostome; gz gizzard; im interbasal muscle; nv neurointestinal vessel; ph pharynx; pp papillae; vn ventral nerve cord; vss ventral setal sac; vv ventral vessel. Scales: A and C 5 mm; B 1 mm.