442 



E. EAY LANKESTER. 



of the corneal facets (whilst the general form and demar- 

 cation of the corneal area is retained) to the complete 



Fig. 5. 



Fig. 6. 



oc— 



Fig. 7. 



oo- 



FiG. .5.— Amblyopsis abbreviata, G. O. Sars. Norway coast, 

 100 to 300 fathoms. No ommatidia. The ocular peduncles are seen 

 as two broad plates. ' Carciiiologiske Bidrao-,' pi, vi, fig. 2 (and 22). 



FiG. G. — Amblyops Crozetii, Will. Suhni. Male, x 5 times. 

 1600 fathoms, S. Pacific. The ocular peduncles are united in front 

 of carapace. Sars, ' Schizopoda,' pi. xxxiii, fisr. 11. 



Fig. 7. — Pseudomma roseum, G. 0, Sars. Lofoden Isles, 

 400 fathoms. No ommatidia. The ocular peduncles form a broad 

 plate with peculiar internal arborescent structure. Sars, ' Carcino- 

 iogiske Bidrag,' pi. iv, fig. 25. 



disappearance of that area as a distinct structure, and the 

 alteration of the shape and character of the eye-stalk. The 



