560 MR. F. E. BEDDARD ON A NEW | Dee. 12, 
by a clear ring, and this again by a broader and opaque, white, 
halo. 
The male pores are very conspicuous upon the xvilith 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 suflicient 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-fig. 78. Text-fig. 79. 
to) 
Text-fig. 78.—Ventral view of Pontodrilus crosslandi, sp. 0. 
Some of the segments are numbered 7, 8, 9, &c. 
Text-fig. 79.—Ventral view of Pontodrilus laccadivensis F. EK. i. 
Some of the segments are numbered 7, 8, &c., 
The gizzard is not at all prominent. 
The anterior intersegmental septa are as usual much thickened. 
The last of these thickened septa divides segments xiii./xiv.; but 
