BY E. P. HALLMANN. 



777 



Text-fig. 1. 

 Tenaciella canaliculata. a, styli of the fibres; b, interstitial and sub- 

 dermal styli; c, dermal styli; c' , basal extremities of dermal styli, 

 more highly magnified; d, larger isochelae ; d' , early developmental 

 stage of a larger isochela; e, smaller isochelae (some of which are 

 contort); /, toxa ; /' , smallest toxa, more highly magnified; 

 g, megascleres of an embryo. 



