204 cvclophojiim:. 



293. Dioryx varhis, Godivin-Austen. 



Alycceits {Diori/x) variits, Godwin-Austen, Land & Fresliw. Moll. 

 India, ii, 1914, p. 402, pi. 157, fig. 7. 



Original description: — "Shell turbinate, narrowly perforate; 

 sculpture: transverse striation above, finely costulated next tlie 

 sutural lube; colour bleached; spire rather hif>h, apex fine; 

 suture impressed, sutural tube long; whorls 4, rounded, slightly 

 swollen near sutural tube, constriction near base of it and at some 

 distance from the peristome, intei'val smooth and straight ; 

 aperture circular, suluertical ; peristome double, solid, thickened 

 on outer margin, not so on the columellar margin. 



"Major diam. 4-0 ; alt. axis 2-5 mm." 



Hah. India: Lhota Naga Hills [ChenneU). 



"This is an interesting form, but unfortunately only one 

 specimen was found. The long sutural tube and the short dis- 

 tance it is behind the peristome places it in Dioryx, but it differs 

 ver}^ much in the umbilical region and in general shape." 

 i( Godwin- AvjSten.) 



Genus ALYC^US, Graij. 



Ahjcceus, Gray, Nomencl. Moll. Brit. Mus. i, 1850, p. 27 ; Pfe)ffer» 

 Zeits. Malak. viii, 1851, p. 147; id., Mon. Pneum. 1852, p. 119! 

 Adams, Gen. Rec. Moll. ii. 1855, p. 278; Benson, A. M. N. H- 

 ser. 3, iii, 1859. p. 176; Chenu, Man. Conchvl. i. part 2, 1860, 

 p. 487; Blanford, A. M. N. H. ser. 3, xiii.*1864, p. 456; id., 

 J. A. S. B. xxxiv, 1865, p. 98; Martens, Preuss. Exped. Ost- 

 Asien, Zool. ii, 1867, p. 150; Godwin-Austen, J. A. S. B. xl, 

 part 2, 1871, p. 87 ; Nevill, Hand List, i, 1878, p. 290 ; Fischer, 

 Man. Conchvl. 1885, p. 742 ; Godwin-Austen, Land & Freshw. 

 Moll. India, i, 1886, p. 186 ; Kobelt & MiJllendorif, Nachr. Deuts. 

 Malak. Ges. xxix, 1897, p. 149; id.. Cat. Pneuiu. 1899, p. 45; 

 Sarasin, Land-Moll. Celebes, 1899, p. 60 ; Kobelt, Das Tierreich, 

 Lief. 16. 1902, p. 341 ; Godwin-Austen, Land & Fresliw. Moll. 

 India, ii, 1914, p. 3:i2. 



Type, Cyclostoma gibhinn, Eydoux. 



Range. India, Burma, Fui'ther India, Malaysia, Southern China, 

 Ja])an. 



Shell narrowly umbilicated, conical or depressed-conoid ; whorls 

 convex ; the last whorl distorted, compressed, much constricted 

 before the aperture, provided with a sutural tube ; aperture cir- 

 cular; peristome generally thickened or refiexed ; operculum 

 corneous, many-whorled. 



Subgenus ALYC^US, s. str. 



Orthahjcaus (part.), Pfeiffer, Mon. Pneum. Suppl. 3, 1875, p. 57 ; 



Kobelt & Mollendorii", Nachr.Deuts. Malak. Ges. xxix, 1897, p. 149; 



id., Cat. Pneum. 1899, p. 45. 

 Alycaeus (subgenus), Kobelt, Das Tierreich, Lief. 10, 1902, p. 341. 



Type, Cyclostoma gibbum, Eydoux. 



Range. India, Burma, Nicobars, Farther India, Suuda Islands. 



