THE EGG-CAPSULE. 



33 



men (or specimens) is much smaller in size. This difference, therefore, could hardly 

 prove a matter merely of age. Another capsule (Chilean), fig. 150, is again quite 

 unlike the specimen figured by Jaekel. It is almost a third larger in size" but nar- 



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s'iS 



^5' 



i'^^ 





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\ 



i/' O 



r 

 ^ 





fr 



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w 



Fig. 1 5 B.— Egg-capsule ot Callorhynchus. (Quoy and Gaimatd.) From Cape of Good Hope. 



(Ventral aspect.) One-half actual size. 

 Fig. 15 C— Egg-capsule of Callorliynchus. (Peron.) From Australia. (Ventral aspect.) 



One- half actual size. 



rower proportionately. Its emphasized rugae arising from the opercular hinge are 

 more nearly transverse, and, unlike any other capsule of Callorhynchus known to the 

 writer, it presents a thick, opaque case, margined by a thin, transparent web. In 



