196 



THE EVOLUTION OF SEX. 



statol)lasts may further resemble sponge-gemmiiles in elaborateness of 

 external equipment, a common characteristic of passive resting structures. 



A Sea-worm {iMyrJanida) which has budded off a chain of individuals.— After 



Mihie-Edwards. 



In the higher bristle-footed worm-types (C/z^r/^/^^/a), asexual multiplica- 

 tion occurs in great variety of expression. Some, when alarmed, break up 



Syllis rnjnosa, a ringed marine worm, in which asexual multiplication has pro- 

 duced a branched appearance. — From M'lntosh, " Challenger " Rep. on 

 Annelida. 



