536 



THE POPULAR SCIENCE MONTHLY 



The Green Abalone Shell with Mask Black Abalone. Shell removed, 



of Algje. showing visceral mass terminating 



in the spiral CGecum posteriorly 

 and the opened gill cavity to the 

 left anteriorly. 



and behind the columellar muscle and foot. From the mouth cavity 

 the gullet leads backward to the enlarged stomach, which is divided into 

 two compartments, and receives the digestive juices from the large 

 digestive gland at the hind end of the body. Two pairs of salivary 

 glands pour their secretions into the buccal cavity. The intestine runs 



SNOUT 



^OILFACTORY TENTACLE 



SALIVARY GLAN 



RADULA v 



INTESTINE 



MANTEL 



-COLUMELLAR MUSCLE 



-EPIPODIAL FOLD 

 REPRODUCTIVE GLAND 



STOMACH 



IGESTIVE GLAND 

 SPIRAL COECUM 



Green Abalone Dissected. The gills, kidneys, heart and dorsal parts of mantle and 

 columellar muscle have been removed and spiral ccecum turned over to the right. 



