64 zonitidjE. 



95. Euplecta prestoni, Godwin- Austen, Proc. Mai. Soc. ii, 1897, 



p. 177, pi. 14, figs. 1-1 e (part of anatomy and radula). 



Shell perforate, subturbinate, keeled, thin, fulvous horny, closely 

 ornamented with fine oblique filiform costulation above, the ribs 

 bearing small granules, from which hair-like spines are developed 

 at regular intervals ; spire conoid, apex obtuse, suture impressed. 

 Whorls 5, closely wound, convex above, the last compressed below 

 the keel at the periphery, convex, smooth, and polished beneath ; 

 aperture oblique, angularly lunate, columellar margin vertical 

 above, reflected throughout, partly covering the perforation. 



[The dental formula is 28 . lO". 1 . 10 . 28, or 38 . 1 . 38. The 

 centre tooth is elongate, with cusps low down on either side ; the 

 admedian teeth with a large cusp on the outer side ; the laterals 

 bicuspid, the innermost the longest. The jaw has a central 

 projection.] 



Major diam. 5-25, min. 4-9, axis 4 mm. 



Hah. Ceylon, Uda Pussellaua {Preston). 



The shell described is immature, and it is possible the full- 

 grown shell may be considerably larger. The spines can only be 

 seen under a microscope. 



96. Euplecta SCObinoides, Syhes, Proc Mai. Soc ii, 1897, p. 2'34, 



pi. 16, figs. 1, 2. 



Shell perforate, lenticular, dark brownish horny, translucent, 

 marked above with fine close arcuate filiform stria?, which are 

 granularly decussated by spiral lines lyiug close together towards 

 the outside of each whorl, further apart inside, [below smooth, 

 with microscopic wavy, longitudinal striae] ; spire low, apex 

 blunt, sutures sliglitly impressed ; whorls 5, narrow, slowly 

 increasing, plano-convex above, the last sharply keeled, compressed 

 beneath the keel, convex, smooth, and polished on the lower sur- 

 face ; aperture slightly oblique, narrow, angularly lunate; peristome 

 thin, basal margin arcuate, columellar oblique, slightly reflected. 



Major diam. S^, min. 8, axis 4J mm. 



Hah. Ceylon, Watawala (CoUett). 



[97. Euplecta gardeneri, Pfr. (See above, p. 40.) 



The animal with the visceral sac black, probably very dark gi'ey 

 in life. Kight dorsal lobe ample, the left in two distinct widely 

 separated parts, the posterior long and narrow. A pointed lobe 

 over the mucous gland. Sole of foot with no division ; the peri- 

 podial margin narrow, tlie parallel grooves above wide apart. In 

 the genitaha the penis is looped up for a considerable length by a 

 strong muscle encircling the main penis-sheath. The caecum of 

 the retractor muscle is long, and there is a shortish blunt kale-sac. 

 The spermatheca vei-y small and sessile. Amatorial organ long 

 snd large. Jaw curved, with a very slight central projection. 



