LATERAL CANAL SYSTEM OF SELACHIANS 



51 



Su^ OphW Y 



/?r. H UtGn. LatHv. 



I X 



Fig. 49 Transverse section of lateral sensory cord and lateral nerve pectoral 

 region. Squalus 22 mm. X 592. 



Fig. 50 Surface view of a 25 mm. Squalus embryo. From a sketch by Otto 

 Swezey. X 62. 



Fig. 51 Dorso-lateral dissection of a similar stage. X 13. 



