RACHISELLUS. 277 



Biilimina (Rachis) pulchm, Pfeiffer & Clessin, Noinencl. Ilelic. 



Viv. 1881, p. 285. 

 Ithachis pulchra, Kobelt & Mollendorff, Nachr. Deuts. Malak. Ges. 



1903, p. 38. 



Original description : " Testa ovato-conica, tennis, albida ; 

 fasciis tribus purpureo-f uscis ornata ; anfractibus convexiusculis. 

 Peristomate simplici, labio interior! roseo." {Gray.) 



Length 23, diam. 10 mill. Ap. 10 x 6 mill. 



Hab. Ceylon (Gardiner, Benson, Layard) ; Balapiti (Nevill). 

 India : Trichinopoly ; Travancore and Tinnevelly (Beddome). 



When first described by Gray its habitat was unknown, and it 

 was believed by Pfeiffer to be an African species until Benson 

 sent him authentic Cingalese specimens. 



The type of Bulimus mavortius, Reeve, which is in the British 

 Museum, measures 14'5 x 7*25 nun., and is more slender of spire 

 than pulclier, Gray, so that it is perhaps advisable to distin- 

 guish this form as a variety. All the specimens possess three 

 bands, one peripheral, one below and one above the periphery. 

 The two forms are more solid than any of the other Indian species 

 of Racliisellus. The Cnming collection contains three specimens, 

 collected by Mr. Gardiner, which are more or less speckled and 

 have only two bands, one at the periphery and the other below, 

 agreeing in this respect with the shell figured in Conch. Ind. as 

 mavortius (copied by Kobelt as pidcher) ; in addition they are 

 ornamented with a diffused pink internal patch on the columella. 

 Another shell in the British Museum also possesses two similar 

 bands, while a second specimen is without bands but has the four 

 apical whorls blackish purple. These measure 22 x 10 mm. Four 

 shells in the Beddome collection are yellowish white, with a few 

 scattered freckles and only one band, the third (infra-peripheral) 

 of a bright pink. Four others, from Travancore, in the same 

 collection, are provided with four bands (two supra-peripheral), 

 the upper one not reaching to the aperture and the other three 

 being more or less interrupted by transverse streaks towards the 

 margin. These bands are all bright pink and the columella is 

 similarly coloured. The apical whorls are purplish black, which 

 colour becomes gradually diffused lower down. Lastly, of four 

 specimens from Tinnevelly, also in the Beddome collection, two 

 have the usual three bauds and two are provided only with the 

 peripheral and one infra-peripheral band of a chestnut colour. 



246. Rachisellus punctatus, Anton. 



Bulimus punctatus, Anton, Verz. Conch. 1839, p. 42 ; Pfeiffer, 

 Mon. Helic. Viv. ii, 1848, p. 212 ; Reeve, Conch. Icon, v, 1849, 

 Bulimus, pi. 65, fig. 452; IJeshayes, in Ferussac, Hist. Nat. 

 Moll, ii, part 2, 1851, p. 86, pi. 157, figs. 7, 8 ; Pfeiffer, Conch. - 

 Cab., Btdimus, 1854, p. 229, pi. 62, fig- s . 22-24 ; Morelet, Ser. 

 Conchyl. livr. 2 ie:ne , 1860, p. 66; Hanley & Theobald, Conch. 

 Ind. 1870, pi. 20, fig. 10. 



