286 LAND AND FBESIIWATEB 



The jaw has a central projection as in PI. LXXXIV. fig, 2e 

 {E. reriulata). The radula was extracted complete, and has the 

 formula : — 



52 . 2 . 12 . 1 . 12 . 2 . 52 

 or 66 . 1 . 66. 



It is thus identical Avith that of Eiiryclilamys rer/uhdn of 

 Ceylon ; the form of the teeth is the same. There was so great a 

 similarity, in this and other respects, that I was led to make a 

 comparison of the shells. It was fortunate the shell of E. rajulafa 

 I had dissected had been preserved : it showed the Travancore shell 

 to he quite different in shape and in its coloration, viz., a rudd}- 

 brown colour. The generative organs of this specimen were not 

 in a good state of preservation, being much contracted together, 

 but from what was seen they were like those of E. regulata. In 

 the external character of the foot, the two species differ con- 

 siderably : compare figure 2, Plate LXXXIV. of regulata, and 

 figure 1, Plate CXXVII. of E. todarum. 



In a second specimen dissected, also from Tenmalai, I was 

 fortunate to get out the genitalia, with only the spermatheca 

 broken off ; there is no amatorial organ. The male organ (Plate 

 CXXVII. figs. 1 c, Id) is of the type in EimjcMamys— stouter 

 ttuin in either platiicldamys or regulata. It has a bulbous head 

 where the vas deferens joins, this is extremely short and crenulate 

 next the prostate. At the base of the penis-sheath is a short 

 sac-like diverticidura {ca') with the free end directed downwards ; 

 having only one specimen to mount, I did not cut it open to 

 examine it ; ou the side of the penis-sheath, just above the ca)cuin 

 there is a strong muscle {m). 



AUSTENIA. 



{Continued from Vol. II. p. 174.) 



For description of typical species of the genus, see p. 228, Vol. I. 



AusTENiA EESPLENDENS, Nevill. (Plate CXXX. figs. 2-2/.) 



Nevill (HeJicarion), J. A. S. B. xlvi. 2, p. 23 (1877) ; id. Yunnan 

 Exped., Moll. p. 883, pi. 80. figs. 6, 6rt ; id. J. A. S. B. 1. 2, p. 129, 

 pi. 5. fig. 24 (1881) (shell) ; Nevill, Helimrion (Austenia), IIand-1. 

 i. p. 16 (1878); G. Tapp. Cauefri, Ann. Mus. Civ. Gen. xxvii. 

 p. 315 (1889); Paun. Brit. Ind., Moll. (1908), p. 194. 



Original descriiition : — " Shell in texture and colour resembling 

 Jlelicarion gigas, Bens., but a little thinner and more mem- 

 branaceous ; it is distinguished from it by its flattened, more 

 ear-like, and appressed shape. It also somewhat resembles Helic. 

 2yeguensis, Theobald, J. A. tS. B. 1834, p. 8, from Prome * ; it is, 

 however, a larger thicker shell, with the whorls of the spire much 

 broader and more distinct, and considerably less open at the base ; 



* Tlierc is soino iiiist:ikp liere. Vilrina jirgttoisis was described as from 

 Pegu, J. A. S. 13. l.S(;4, p. Ii44. 



