44 LAND PLANAEIANS FROM LORD HOWE ISLAND. 



The following is a list of the forms described : — 



Genus. Cotyloplana, gen. nov. 



1. C. whitdeggei, sp. n, (Figs. 1, 2, 8, 4.) 



2. C. punctata, sp. n. (Figs. 6, 6, 7, 8.) 



Genus. Khynchodemus. (Leidy.) 



3. R. fasciatus, sp. n. (Figs. 9, 10.) 



4. R. laterolineatiis, sp. n. (Figs. 11, 12, 13.) 



5. R. grandis, sp. n. (Figs. 14, 15, 16, 17, 18, 19.) 



6. R. mcdiolineatiis, sp. n. (Figs. 20, 21, 22, 23.) 



7. R. dubius, sp. n. (Figs. 24, 26.) 



8. K. fletchevi, sp. n. (Figs. 26, 27.) 



Cotyloplana, gen. nov. 



Body flattened. A sucker is present on the ventral surface close to the anterior 

 extremity. Eyes two. 



Cotyloplana whiteleggei, sp. n, (PI. V., Figs. 1, 2, 8, 4.) 



Anterior end somewhat spathulate with the antero-lateral margins of the body 

 crenate and a median semicircular projection with smooth margin. Eyes two ; 

 dorsal ; one at each side of the base of the semicircular projection. A sucker is 

 placed on the ventral surface at the anterior extremity with its longest diameter at 

 right angles to the long axis of the body. 



The dorsal surface is of a brown colour and the posterior part is covered with 

 dark mottlings which become restricted anteriorly to form a broad median band 

 which stops short of the anterior extremity. A dark band lies across the anterior 

 extremity and is continued backwards on each side for about one-fifth of the length 

 of the body where it merges into the mottlings which cover the whole of the posterior 

 part of the dorsal surface. 



Ventral surface mottled. 



Pharyngeal opening 12 m.m. from posterior end. Genital opening 5 m.m. from 

 posterior end. Length in spirits 24 m.m. 



Locality. — Lord Howe Island. (Coll. Mr. T. Whitelegge.) 



