316 



dr.mus- 



md.ga 



bl. ht. ovar. 



con 



muse. 



ovd. 



con. nc.gang. 



Fig. 130. Cross-secUons oi Limnoria lignonon. 



1. Head region. X 80; bl. s., blood sinuses lateral to stomach; dr. mus., dorsal muscle to the gastric 

 mill; lal., lateral process of gastric mill; md., base of mandible; md. ga., mandibular ganglion; muse, 

 muscles of mandible; vnc, ventral nerve cord. 



2. Thoracic region. X 80; hi., blood veins lateral to heart; con., connective tissue ventral to the ven- 

 tral nerve cord, and in the pericardium; gang., ganglion of ventral nerve cord; ht. heart; int. intestine; 

 Iv., liver lobe; ovar., ovary containing eggs; ovd., oviduct; muse, muscles of the legs. 



