REPORT ON THE COPEPODA. 



113 



pigmented body and the two lenses united by a tube showed at once that this was a member of the 

 family Corycaeidse, and a glance at Leuckart's picture of Corycccus germanus proved that this genus, 

 with its rudimentary development of the fifth thoracic ring, was the one to which it belonged. For I 

 do not think that the extraordinary pectoral process into which the pigmented bodies of the eyes extend 

 makes it necessary to establish for this form a new genus. In the following description I shall 

 especially dwell upon those points in which our animal, which I propose to call Corycccus megalops, 

 differs from Corycccus germanus, Leuck. 



-702/ 



~pv 



-m 



- i 



Coryaxus pellucidus, Dana (from Dr von Willemoes Suhrn's figures). 



Fig. 1.— Female, seen from left side. Fig. 2.— Male, seen from left side. Fig. 3.— Female, seen from dorsal surface. 



Pr., ocular process ; on,, ova ; sp., spermatophores ; map., posterior foot-jaw ; L, intestine ; m., dorsal muscles. 



The female has a length of 0-87 mm. and a width of 0-35 mm., its somewhat larger size_and 

 the blue colour of its ovary distinguish it easily from the male. In both sexes the eyes (which are 

 composed of two lenses, a tube, and a red pigmented body) have an extraordinary size, as the pig- 

 mented bodies extend into a pectoral process, which is as long as the first pair of legs and somewhat 

 bent backwards (figs. 1, 2, 3, pr.). 



The first antennce are amply supplied with olfactory hairs in both sexes. The second ones, 

 somewhat larger in the male, are terminated by curved spines, which are especially numerous Jn the 



(ZOOL. CHALL. EXP. — PART XXIII. — 1883.) 2 15 



