TRANSACTIOXS LIVERPOOL BIOLOGICAL SOCIETY. 



Proboscis 

 sneain 



■Bofhridial 



sucker 



J?eJrqcfor muscle Proboscis sheath 



cr the proboscis 



Prbboscidial nerve 

 In. fera I nerve cord Ixcrefhry canal 



Figs. 1 and 2. Coenotnorphns lingaatula. 



1. Diagrammatic transver.sL' seclion tiiroiiuli tiieScolex Hhowinjj; the 

 airangeiiU'iit of i\w muscles. 'J'iic iniisculai' parts of tim hotliiiilia and 

 the dorsD- ventral muscle commissiu-(! cnimectint; them are daiUly 

 shaded. The muscle bundles I'adiating out towards the periphery are 

 represented as if they were projected in a single plane : in reality 

 they run obliquely. (See PI. 1, fig. i^, w hich is an actual representation 

 of the muscle fibres seen in one section some little distance behind the 

 transver.se level taken as represented in the Text-figure). The numbers 

 of fibres drawn arc in all cases less than those actually seen in the 

 sections. 



2. The axial parts of the Scolex some distance behind the central 

 nervous S3^stcm. The coarse connective tissue between the proboscis 

 sheaths ; the proboscidial nerves, and the lateral nerve cords are 

 shown. The latern! nerve cord on the right side is seen giving off 

 branches to the bolluidial suckers. 



