358 EXPLANATION OF PLATED. 



Tab. XV. 



Fig. 1 . Eurycercus lamellatus. 



a. Superior antenna, h. Liferior do. c. Mandible, d. Labrum. 

 d^. Jaws. e. First pair of feet. f. Second do. (j. Third 

 do. h. Fourth do. i. Fifth do. k. Abdomen. I. Eye. 



2. MacrotJirix laticornis, female. 



a. Inferior antenna. 



3. Bosmina longirostris. 



a. Inferior antenna. 



Tai3. XVI. 

 Fig. 1. Peracantha truncata. 



a. Inferior antenna, b. Intestine. 



2. Alona ovata. Fig. 3. Alotia reticulata. 



4. Alona quadrangularis. 



a. Labrum. h. Abdomen. 



5. Acroperus liar pa. Fig. 6. Acroperus nanus, 



1. Chydorus glohosus. 



a. Jaws. b. Inferior antenna, c. Abdomen. 



8. ChydorusspJicericus. 



9. Camptocerciis macrourus. 



a. Abdomen. 



Tab. XVII. 

 Fig. 1. Polyphemus pediciilus. 



a. Inferior antenna, b. One of the first pair of legs. 



2. Evadne Nordmanni. 



a. View of the legs (from Loven). 



3. Pleuroxus trigonellus. 



a. Antennule. b. First pair of feet. c. Abdomen. 



4. P. tmcifiatiis. Fig. 5. P, Jiamatus. 



Fig. A. Convoluted intestine of Eiiri/cercus lamellatus. 

 Fig. B. Do. of Chydorusglohoms. 



a. CEsopliagus. b, c, d. Convolutions. /. Anus. 



