New Species Branchiobdellid 



25 



Fig. 1. Structural details of Xironodnlus bashaviae new species. A, ventral view of 

 holotype; B, upper jaw; C, lower jaw of paratype; D, reproductive systems in ven- 

 tral view. Abbreviations: b, bursa; ed, ejaculatory duct; sb, spermathecal bulb; sd, 

 spermathecal ectal duct; sf, sperm funnel; sg, spermiducal gland; ve, vas efferens. 



served material). The holotype (selected for the clarity with which internal 

 structures may be seen) has the following dimensions: total length, 2.8 mm; 

 greatest diameter, 0.6 mm; head length, 0.6 mm; head diameter, 0.4 mm; 

 diameter, segment I, 0.3 mm; diameter, sucker, 0.4 mm. The average dimen- 

 sions, with minima and maxima given in parentheses, of the holotype and 

 four specimens selected at random from the type-series are as follows: total 



