MOLLUSCA OF INPIA. 295 



below the points; the laterals are all alike, becoming smaller 

 toM^ards the margin and unevenly bicuspid ; the formula being 

 153 . 1 . 153, or 307 in the row. The jaw and radula are quite 

 distinct from Stoliczka's figures on plate 17. figs. 10 and 14, 

 J. A. S. B., aud Semper's pi. 5. fig. 20, Eeis. Phil. 1870." 



The shell figured is in the Indian Museum, Calcutta, No. M. ^, 

 but has no locality in the tube. No. M. -J* is written against 

 " 2 Pudupyoo (Upper Burma), coll. J. Anderson," and is the third 

 species enumerated in Hand-hst, p. 24, under var. andersoniana, 

 G. Nevill. These two specimens are very young shells, not identi- 

 fiable unless a series was collected at the same place. In the tube 

 with them is a ticket with " Burma types" in Nevill's writing, and 

 on a piece of paper loose in the box is written " N. philumhrina, 

 Nev. Pudupyoo, IJ. Birma. Type." 



I am now able to describe another species of the genus. 



Sakiella mbrguiensis, n. sp. (Plate CXXVIII. fig. 16, shell : 

 Plate CXXTX. figs. 1-1 d.) 



Localitii. Mergui ( Wm. Theobald). 



Shell umbilicated ; sculpture none, a smooth rather shiny 

 surface, transverse oblique lines of growth conspicuous ; colour 

 pale horny ; spire depressedly conic, apex blunt ; suture shallow ; 

 whorls 5|, subangulate on the periphery ; aperture semi-lunate ; 

 peristome thin ; colhimellar margin subobhque, not reflected, but 

 somewhat thickened into a sinuate pillar. 



Size : maj. diam. 16-5, min. 14-5; alt. axis 7-5 mm. 

 f Animal. Dark ochraceous with black markings, three black 

 spots on side of the foot (fig. 1); the branchial sac from the black- 

 bordered mantle-zone has longitudinal parallel black bands, and 

 spotsof same colour. The mucous gland large. Soleof foot divided. 

 The peripodial margin is broad, bounded above by three peripodial 

 grooves, the sides of the foot broken up into a fine papillate 

 surface. The right shell-lobe (fig. la) narrow elongate, the 

 left much smaller. The left neck-lobe in two distinct parts : the 

 anterior small, quadrate, black ; the posterior very narrow and at 

 some distance from the other. 



The radula was broken up on dissection, but several portiona 

 with the central teeth were secured (fig. 1 d). The centre tooti 

 and three on either side have plates, the longest and broadest in the 

 row, they are succeeded by a very large number on much narrower 

 plates which are long, curved, and bicuspid. 



A radula quite after the type of the Durgdlinm, next to which 

 this genus should be placed. 



The jaw (fig. 1 (•) is moderately arched, even in breadth, concave 

 on cutting-edge, no projection. 



Genitalia (fig. ] b). There is no amatorial organ. The penis is 

 a long tube swelHng towards the retractor muscle, bent on itself 

 and becoming smaller where the above muscle is given off. There 

 is no kalc-sac, only a very short bulbous epiphallus where the vas 



