908 MB. F. E. BEDDARD ON THE [Dec. 4, 



(defective on the right side of one specimen) occupy segments 

 xvii.-xix. ;they are lobate and have but a short duct. 



The spennathecce (in vi.-ix.) have a diverticulum which is very 

 short. 



Hab. Biserat. 



We may thus define the species : — 



Amyntas evansi, n. sp. 



Length 120 mm. ; number of segments 120. Anterior setae 

 not larger than those upon following segments. Clitellum ? 

 Greuital papillae 8 pairs on intersegmental groove vii./viii. Male 

 pores far apart. Gizzard-septum absent. Caeca present. Last 

 heart in xiii. Sperm-sacs in x., xi., xii. Spermiducal glands xvii.- 

 xix., with short duct and no terminal sac. Spermathecae in vi.-ix., 

 with short diverticulum. 



Hab. Malay Peninsula. 



(14) Amyntas biporus, n. sp. (Fig. 7, p. 910.) 



Of this species I have been able to examine a large number of 

 individuals. They are all of moderate size. The length is fairly 

 illustrated by a specimen which measured 115 mm. and consisted 

 of 93 segments. 



The seta are a trifle stouter upon the anterior segments of the 

 body ; they are particularly small upon the xth and, though the 

 difference is less marked, upon the xith segment. The xth segment, 

 as is so often the case, is larger than the others. 



The clitellum completely occupies its usual segments. I found 

 setae upon all of its three segments. 



Genital papilla: are found both anteriorly and posteriorly ; in 

 nearly all of the specimens which I examined there are a pair of 

 papilla? upon the viith segment, lying just behind the circle of setae; 

 these are not large and have an elliptical contour ; they are almost 

 eye-like in form. In one specimen there were, in addition to 

 these, an exactly similar pair of papillae lying on the viiith segment, 

 but in front of the circle of setae and rather near to each other in 

 the median line. In another worm the right-hand one only of the 

 additional pair of papillae was present. As the great majority of 

 the specimens had but the single pair of papillae on segment vii., 

 that may be regarded perhaps as the normal arrangement for the 

 species. 



The posterior pair of papillae are upon the xixth segment, and 

 they showed no variations at all ; there was always one pair and 

 one only. The curious fact about these papillae is that they are 

 exactly like the male pores which precede them. It would be 

 quite impossible from an examination of the external characters of 

 the worm alone to say definitely which was male pore and which 

 papilla. Indeed the opinion arrived at would probably be that 

 this species possessed two pairs of male pores. The first specimen 

 that I examined was put down by me as au abnormality until the 

 examination of others showed that it was a constant character. It 



