16 TESTACELL1DJE. 



Genus ENNEA. 



Ennea, H. $ A. Adams, Gen. Rec. Moll, ii, 1858, p. 171 ; Stol 

 J. A. S. B. xl, pt. 2, 1871, p. 169 (anatomy of E. (Huttonella) 

 tricolor). 



Type, E. bicolor, Hutt. 



Range. Throughout Southern and South-eastern Asia from 

 Arabia to Japan and the Philippines ; also Madagascar, with the 

 Mascarene Islands, and throughout tropical and Southern Africa. 



Shell pupiform, ovate, cylindrically ovate or turreted, hyaline in 

 structure. All Indian species have plaits or teeth in the aperture, 

 and all, except one Nicobar form, are imperf orate and arcuately 

 rimate. 



Animal like that of Streptaxis. No jaw. Eadula similar ; that of 

 Ennea bicolor is long, containing between 80 and 90 rows of teeth, 

 with 19 teeth (9.1.9) in each row. The median tooth is short, 

 sharply pointed, with an enlarged knob on each side towards the 

 base ; the laterals are longer, slightly curved, each with a blunt 

 knob on the outer side ; their size decreases outwardly (Stoliczka). 

 According to Morelet, Ennea is viviparous, producing one young 

 at a time. 



I. Imperforate, rimate. 



A. Aperture subaxial, not truncated above, oval, with an accessory, 

 nearly circular, portion on the right almost cut off by a parietal 

 lamella and a palatal fold or swelling ; peristome white, ex- 

 panded, continuous, indented at parietal lamella, deeply sinuate 

 around subtubular accessory portion of aperture. 



a. Peristome united to penultimate whorl and partly covering it. 



31. Ennea vara, Bs. (Pupa) A. M. N. H. (3) iii, 1859, p. 188; Pfr. 

 Mon. Hel. v, 1868, p. 455; G.-A. P. Z. S. 1872, pi. 30, fig. 6; 

 Pfr. t.c. vii, 1876, p. 501 ; H. 8? T. C. I. 1876, pi. 100, Ifig. 3; 

 Nev. Hand-l. i. 1878, p. 7. 



Spire elongately ovate, subfusiform, white, strongly ribbed 



Fig. lO.Ennea vara {, and aperture f . 



vertically ; spire turreted, regularly diminishing, apex obtuse ; 

 whorls 8, slightly convex, the last much compressed laterally, 



