STREPTAXIS. 11 



A variable sliell ; some specimens, apparently fully adult, have 

 only one parietal lamella, and the extent to which the penultimate 

 whorl, when viewed from below, extends beyond the body-whorl 

 varies considerably. To this is due the difference in the proportion 

 of length to breadth, shown by the measurements. 



16. Streptaxis footei, JV. ^- If. Blf. J. A. S. B. xxx, 1861, p. 358, 



pi. 2, fig. 6 ; Pfr. Mo7i. Hel. v, 1868, p. 448. 



Near S. peroteti, but with only one tooth inside the peristome, 

 situated about the middle of the outer margin ; two parietal 

 lameirae ; 5 whorls, the penultimate projecting very slightly when 

 viewed from belo\\% subumbilicated like S. ivatsoni. 



Length G|, breadth 5, depth 4 mm. 



Hah, Sholamalai Plateau: Pachaimalais, near Salera, 3000 ft. 

 A variety from Kalruyan Malai, another hill-group near Salem, 

 collected by Colonel Beddome, has an additional basal tooth inside 

 the peristome and the parietal lamella near the angle small or 

 wanting. 



17. Streptaxis watsoni, ir. ^- H. Blanf. J. A. S. B. xxix, 1860, 



]). 12(); iidnn, t. c. xxx, p. 359, pi. 2, fig. 7 : Pfr. Mon. Hel. v, 

 1868, p. 447 ; //. .y T. C. I. 1876, pi. 8," tig-. 8 ; Nev. Hand-l. i, 

 1878, p. 4. 



Similar to S. peroteti, but considerably smaller ; w horls 5, um- 

 bilicus larger and deeper, peristome more deeply sinuate at the 

 angle, parietal lamellae always 2, stronger and further apart, and 

 teeth in the peristome more developed, from 3 to 5 in number. 



Length 6, breadth 4i, depth 3 mm. 



Hah. Nilgiris ; Wynaad, Anaimalais. 



18. Streptaxis beddomii, Blf. {Nev. MS.) P. Z. S. 1899, p. 765, 



pi. 50, tigs. 4-7. 

 Streptaxis plourostomoides, Gude, Proc, Mai. Soc, v, 1903, p. 324, 

 pi. 12, figs. 14-16. 



Distinguished from S. ivatsoni by having a single parietal plait, 

 and the teeth inside the peristome differently arranged. There 

 are three small equal and equidistant teeth, one halfway down the 

 columellar margin, a second farther down, and a third in the base, 

 a fourth tooth inside the right margin. Althougli there is only 

 one parietal plait, there is sometimes a tubercular swelling on the 

 parietal wall at the termination of the sinus of the peristome. 



Length 6, breadth A^, height 3 mm. 



Hah. Anaimalais (Beddome). 



A larger variety with an additional upper tooth in the right 

 margin, and with the three equal columellar and basal teeth rather 

 nearer together, measuring 7, 5, and 34, has been brought by 

 Col. Beddome from near Ivuttalam, Tinnevelly, 4000 feet above 

 the sea. This appears to be S. pleurostomoides of Gude. A shell 



