2()8 ClX'LOrHOElB,E. 



3U9. Alycseus riclithofeiii, Blanfonl. 



Alycmts ricWwfeni, Blanford, J. A. S. B. xxxii, 1863, p. 324; 



ilauley & Theobald, Conch. Ind. 1874, pi. 94, tigs, o, (J ; Pfeiffer, 



Men. Pueimi. Suppl. 3, 1875, p. 62 ; Theobald, Cat. Shells Brit. 



India, 1876, p. 40; Sowerby, in Keeve, Conch. Icon, xx, 1876, 



Alycceus, pi. 3, tigs. 23 «, 23 6 ; iS'evill, Hand List, i, 1878, p. 293 ; 



Godwin-Austen, Land & Freshw. Moll. India, ii, 1914, p. 428, 



pi. 151, fig. 9. 

 Alycaeus {tharax) richtltofeni, Kobelt& Mijlleudorff, Nachr. Deuts. 



JMalak. Ges. xxx, 1898, p. 129 ; id., Cat. Pueum. 1899, p, 49. 

 Ali/caeus {Dicharax) riclithofeni, Kobelt, Das Tierreich, Lief. 16, 



1902, p. 376. 



Original description: — "Shell lunbilicateu, turbinate, rather 

 solid, closely flexuously costulated, more strongly so on the 

 inflated portion. Spire conical; apex ratlier acute; suture im- 

 pressed. Whorls 5, rounded, the last moderately swollen at the 

 side, and subangulate at the periphery, and more strongly so 

 round the umbilicus, then much contracted, ascending slightly at 

 tlie inflation, descending considerably behind the aperture. Con- 

 striction shghtly costulated, crossed by a very prominent vertical 

 ridge. Sutural tube of moderate length, about 2^ mm. Aperture 

 ch-cular, very oblique. Peristome continuous, double, the inner 

 lip projecting slightly, and waved three times on the dextral side. 

 Outer iip broadly and flatly expanded. Operc? 



" Major diam. 5, minor ditto 4, alt. 4 ; diam. ap. 1| mm."' 



Hah. Burma : MotUmaiu {Richthofen}. 



"The species is quite distinct in type fi-om any Indian or 

 Burmese form with which I am acquainted ; it combines a high 

 conical spire with a strong ridge on the constriction, but it recalls 

 somewhat the Javanese A.jagori, Martens." (Blanford.) 



400. Alycaeus rugosiis, Godwin-Austea. 



Alycaeus ruqosus, Godwin-Austen, Land & Freslnv. 3Ioll. India, ii, 

 1914, p. 359, pi. 141, tigs. 7, 7 a. 



Original descrijition: — " Shell globosely conical, umbilicus much 

 constricted ; sculpture : well defined, close costulation next the 

 suture, becoming for a short distance behind finer and then at 

 once becoming strong and distant on the upper whorls ; colour 

 whitish; spire high, conical; suture well impressed, the sutural 

 tube not very long; whorls 5, well rounded, the last crossed by a 

 single strong ridge between the constriction and the aperture ; 

 aperture angularly oval, oblique ; peristome much crenuiated, on 

 the outer and lower margins double ; columellar margin subobhque, 

 curving. 



" Major diam. 3, alt. axis 1'8 mm." 



Hab. India: Burroi Gorge, Dafla Hills {Godv-in-Austcn). 



