Manchester Memoirs, Vol. xlvii. (1903), No. 5. 9 



body is rounded, the arrangement of the numerous eye- 

 spots being shown in the accompanying figure. 



Anterior end of Latocestus pacificns, sp. n., showing the arrangement 

 of the eye-spots. ( x 14.) 



This genus is probably fairly abundant in tropical seas. 



I am inclined to believe that the species I have described 



as Cestoplanaf maldivensis [9] should be referred to it, 



but an examination, by sections, of the single specimen 



known is unfortunately impossible. I have also an unde- 



scribed species belonging to this genus from Penang, very 



distinct from either of the others. 



Sub-Order COTYLEA. 

 Family PERICELID^. 

 PERICELIS liYERLEYANA (Coll.). 

 A single large specimen from Rotuma, indistinguish- 

 able, so far as I can discover, from the Maldive specimens, 



