394 



COMPARATIVE ANATOMY 



CHAP. 



B 



FIG. 265. Stomatopodan larvae of the Erichthus type. .4, Youngest known Erichthoid 

 larva, n, Somewhat older larva, from the side. C, Young Erichthus larva (Znna). D, Older 

 Erichthus larva with complete number of limbs, an, Anus; itn, nauplius eye ; br, rudiments of 

 the gills ou the pleopoda ; ab, aMomen. The Roman numerals in brackets denote the corresponding 

 limbless thoracic segments. I-V, Oral feet ; VI-VIII, ambulatory feet ; t, telson (after Glaus). 



