PI 



'. . i -•] 19 E. Sulu-archi| A I ilbottom. 1 :■ 



: 116. Kwandang-bay-entrancc. 72 M. Fine sand with mud. 1 Sp< 



Stat. 162. Bctw< I iken-islands. West of Salawatti. [8 M. l and fine 



mikI with clay and shells. 1 Sp 

 Stat. 164. 1 linea. 32 M. Sand, small stones and shells. 



Stal North point of Nuhu Jaan. Kei-islands. 90 M. Sand, coral and shells. 1 E 



• ■ specimens slightly vary in sculpture, much more in colour, some specimens are 

 nearly <>r quite white, however 1 think this may be due to bleaching, as they are dead shells. 

 I have located the species in Drillia instead of Surcula, though not without hesitation and 

 after 1 have seen that Hedley (Proc. Austral. Assoc. adv. se. 1909, p. 3651 has done the 

 same. Unfortunately 1 cannot see that any of the specimens contain the soft parts. 



21. Drillia audax Melvill «Sc Standen. 



Mi i.\ 11. 1. v\: Standen. Ann. Ma-. Nat. Hist. Ser. 7, Vol. XII, 1903, p. 313, PI. 23, 1 

 Stat. 306. S°27'S., 122 54.5 E. Savu-sea. 247 M. Sandy mud. 2 Spec. 



The sculpture of the; Siboga-specimens is coarser than that of a specimen from the Gulf 

 ol Oman presented to me by Mr. Melvill, especially on last whorl, but otherwise I see no 

 differences of any importance. These differences in sculpture may be partly due to variability, 

 the localities being very remote, partly be caused by the Siboga-specimens being dead, which 

 renders sculpture more conspicuous, as long as the shells are not worn. 



22. Drillia kwandangensis n. sp. PI. XXVI, lig. 9. 



Stat. 114. Kwandang-bay-entrance. 75 M. Hard sand, very fine. 1 Spec. 



Shell elongately fusiform, strong, rather dark reddish-brown. Whorls 8, of which 3 form 

 a smooth, red-brown nuclcus ; post-nuclear whorls slightly convex, strongly lirate below the 

 suture , with at first 2, lower on 3 strong spiral lirae on each whorl, 14 in numbcr on last 

 whorl and 2 faint ones below subsutural liration, more or less visible on upper whorls; the 

 whorls are crossed by tliick, rounded ribs, making the lirae slightly beaded, 9 in number on 

 penultimate whorl, faint on last one, which has a very strong rib behind peristome, moreover 

 the shell is crossed by conspicuous growth-lines. Aperture oblong, angular above, peristome 

 rather thin, with a conspicuous sinus above. tlien protracted towards the middle, columellar 

 margin concave above, straight below, with a strong layer of enamel, a tubercle above at the 

 sinus; interior of aperture smooth, red-brown with a bluish tint in its depth. Canal straight, 

 rather narrow. 



Alt. lat. 3; apert. alt. 3, lat. 1 Mill. 



Allied to thi ding species, bul differing by its much coarser sculpture, which is 



still tronger than in the specimens of audax, recorded above, and by its uniform 



brown colour. 



5° 



