560 



MR. F. E. BEDDARD ON A NEW 



[Dec. 12, 



by a clear I'iiig, and this again by a broader and opaque, white, 

 halo. 



The male pores are very conspicuous upon the xviiith segment, 

 and, as in other species of Pontodrilus, the area upon which they 

 open is depressed in a sucker-like fashion. Each depression is 

 divided into two by a transverse raised fold. The actual pore 

 seems to correspond in position to the outer of the ventral seta 

 couple. Although the external characters are sufficient to define 

 the present as a new species of Pontodrilus, in the existing state 

 of knowledge of that genus it may be useful to give particulars 

 of certain internal organs which are known to vary from species 

 to species. 



Text-fiiT. 78. 



Text-fiij. 79. 



r—/3 



—fU. 



■\ifL.../J- 



s.i— -/<9 



Text-fig. 78. — "Ventral view of Fontodriliis crosslandi, sp. ii. 



Some of the segments are numbered 7, 8, 9, &c. 



Text-fig. 79. — Ventral view of Pontodrilus laccadiuensis F. E. H. 



Some of the segments are numbered 7, 8, &c. 



The gizzard is not at all prominent. 



The anterior intersegmental sejita are as usual much thickened. 

 The last of these thickened septa divides segments xiii./xiv. ; but 



