CTENOSTOMATA. 



ISO 



Fig. 27. 



^ 



Miinosella gracilis. 



Suborder III. CTENOSTOMATA*, Busk. 



CTENOSTOMATA, Busk : Alder : Qoaee : Smitt : Heller : Gurus : Jolict : &e. 

 HAI/CYONELLEA and Vr.sirri.AKisA, Johnston. 



* The diagnosis of the suborders will be found in the portion of the In- 

 troduction devoted to Clarification. 



