96 THE DISCOBOLI. 



PLATE XL (continued.) 



Cycloplerus lumpus Linne. 



Fig. 10. Viscera seen from the left side. 



The lettering is the same for each of the figures: a, anus; c, cieca; e, esophagus; 

 i, intestine; k, kidney; I, liver; o, ovary; p, pylorus; r, rectum; s, stomach; sp., spleen; 

 u, end of the ureters in the anal papilla. 



J PLATE XII. 



Cycloplerus lumpus Linn. 



The Figures in this and the following Plate are from the original drawings prepared by Prof. 

 Alexander Agassiz for his young stages of Osseous Fishes. Figures 1 and 2 represent the side and 

 back of the youngest specimen. Figures .3, 4, and 5 are lateral views of older ones, up to the time of 

 complete separation of the fins and the appearance of the tubercles. 



^ PLATE XIII. 



Cycloplerus lumpus Linn. 



Young stages: Figs. 1 and 3, lateral views; Figs. 2 and 4, superior aspects; Fig. 3", the spiny 

 protuberances along the vertebral line and upper margin of the anterior dorsal; Fig. 3'', the largest 

 spiny protuberances of the lateral line; and Fig. 3" shows the pectorals and veutrals as they appear 

 from beneath. 



