155 343 



Paß. 



Chap. IV. Anatomical Hemarks Relating to the Males of Hotifera SOU — 327 



Chap. V. Remarks Relating lo the Reduction of the Male Se.\ 827—331 



List of Literature I 331—339 



Table of Contents 340—343 



Explanation of Plates 343—34.5 



EXPLANATION OF PLATES 



All plates reduced with one third. 



Tab. I. 



Fig. 1. Notommata najas seen dorsally. Obj. 4. Oc. 6 



2. — seen ventrally. Obj. 4. Oc. 6 



3. Notommata aurita seen ventrally. Obj. honi. Im. Oc. 6 



4. Proales parasita seen dorsally. 01)j. hom. Im. Oc. 6 



5. — seen ventrallj'. Obj. hom. Ini. Oc. 6 



fi. — Wheel-organ seen in front. Obj. hom. Im. Oc. 6 



7. Diglena grandis seen laterally. Obj. hom. Im. Oc. 6 



- 8. — catellina Obj hom. Im. Oc. 6 



- 9. — giraffa Obj. hom. Im. Oc. fi 



Tab. II. 



Fig. 1. Copeus labiatus -. seen dorsallj'. Obj. hom. Im'. Oc. 6 



2. — pachj'urus seen dorsally. Obj. hom. Im. Oe. 6 



Tab. III. 



Fig. 1. Sj'nchæta pectinata seen laterally. Obj. hom. Im. Oc. fi 



2. — tremula seen laterally. Obj. hom. Im. Oc. 6 



3. Polyarthra platyptera seen dorsallj' Obj. hom. Im. Orthoscop Oc. 



4. — seen ventrally. Obj. Iiom. Im. Ortlioscop Oc. 



5. Hattulus stj'Iatus seen laterally. Obj. hom. Im. Oc. fi 



6. — pusillus seen laterally. Obj. hom. Im. Oc. 6 



7. — — lorica contracted seen lateralh'. Obj. 4. Oc. 4 



8. — cyllndricus seen ventralh'. Obj. hom. Im. Oc. 6 



Tab. IV. 



Fig. 1. Euchlanis dilatata seen ventralh'. Obj. hom. Im. Oc. fi 



2. — lyra seen dorsally. Obj. liom. Im. Oc. fi 



3. — triquetra seen laterally. Obj. 4. Oc. fi 



Tab. V. 



Fig. 1. Salpina mucrouata seen laterally. Obj. lioni. Im. Oc. fi 



- 2, — spinigera seen laterally. Obj. hom. Ini. Oc. 6 



45« 



