THYSAXOTA. 13 



Hah. India: Nilgiries (Jerdon). 



Nevill originally regarded crinigera as an immature form of 

 guerini (Hand List, i, 1878, p. 54). According to Lt.-Col, G-od win- 

 Austen (1. c. p. 190), he subsequently considered it distinct. In 

 this he was, judging from the descriptions, quite justified. The 

 shell of T. crinigera, besides being smaller, is more depressed, has 

 more flattened whorls, and the raised spiral line above the peri- 

 phery is a conspicuous feature which is lacking in T. guerini. 



21. Thysanota eumita, Sylces. 



Thysanota (?) eumita, Sykes, Proc. Make. Soc. London, iii, 1898, 

 p. 72, pi. 5, figs. 17, 18 ; Godwin- Austen, Moll. India, ii, 1907, 

 p. 188. 



Original description: "Testa depresso-conica, anguste umbili- 

 cata, corneo-virescens, depresso-trochiformis, apice obtusulo ; 

 sutura impressa ; anfr. 5-5|, piano-con vexi, linea unica spiralis 

 supersuturalis muniti, transversim subtiliter striata, ultimus 

 carinatus, carina suturaque pilis elongatis ciliatis ornata, basi 

 subinflatus ; apertura angulato-lunaris ; peristoma simplex, rectum. 



"rDiam. 4-2 mm. ; alt. 2 mm." 



Sab. Ceylon: Ambagamuwa; Badulla (Collett). 



Is said to resemble a young T. guerini, but is more trochiform 

 and not so convex. 



22. Thysanota Mspida, Sykes. 



Thysanota hispida, Sykes, Proc. Malac. Soc. London, iii, 1898, 

 p. 160, pi. 10, fig. 2; Godwin-Austen, Moll. India, ii, 1907, 

 p. 188. 



Original description : " Testa trochiformis, periostraco f usco, 

 rugoso, induta, basi impressa, umbilicus angustus, pervius ; apex 

 mediocris, applanatus ; anfr. 6-61, convexi, lira unica spiraliter 

 sculpti, ultimus basi carinatus, lira carinaque pilis longis dense 

 notatae, apertura lata, luuaris ; peristoma simplex, marginibus 

 callo tenuissimo junctis. 



" Diam. max. 8, alt. 5 mm." 



Hab. Ceylon: Haputale (Collett}. 



Differs from T. guerini in shape and size ; the single spiral 

 thread is clothed with club-shaped hairs. 



23. Thysanota elegans, Preston. 



Thysanota elegans, Preston, Eec. Ind. Mus. iii, 1909, p. 135, pi. 22, 

 fig. 19. 



Original description : " Shell trochiform, rimate, vitreous, 

 yellowish white ; whorls 6, the first two rounded, spirally striate, 

 the remainder sculptured with fine spiral lines crossed by coarser, 

 transverse, arcuate striae and bearing a strong, peripheral, hairy 

 liration, the last whorl sharply carinate at the base ; base of shell 



