68 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



8. C. MARGINATUS, Pfr. : Proc. Zool. Soc, 1853, p. 52; Hanley and 



Theobald, Concli. Ind., pi. cxlv, fig. 6. 



Hah. — Bandarawella (Mrs. Broun). 



9. C. NiETNEKi, G. & H. Nevill : Journ. As. Soc. Bengal, vol. xxxix 



(1871),p. 7, pi. i, fig. 7. 



Hal. — Ambagamuwa (Collett). 



Mr. Collett also found at Balangoda an interesting form, wliicli is 

 more elongated and crenulated, and has deeper sutures. The figure 

 in the Conch. Ind. (pi. cxlvi, fig. 4) does not resemble this shell. 



10. C. PTEAMiDATTJS, Pfr.: Proc. Zool. Soc, 1852, p. 145, pi. xiii, 



fig. 4 ; Hanley & Theobald, Conch. Ind., pi. cxlvi, fig. 5. 



11. C. Templemani, Pfr. : Proc. Zool. Soc, 1852, p. 158 ; Hanley and 



Theobald, Conch. Ind., pi. cvi, fig. 1. 



Hah. — Uda Pussellawa and Kurunegalla (Preston); Maturata 

 (Simon). 



Mr. Preston found a specimen with a pure white lip at Kurunegalla. 



12. C. Thwaitesii, Pfr. : Proc. Zool. Soc, 1852, p. 147; Hanley and 



Theobald, Conch. Ind., pi. cvi, fig. 6. 



? C. Cumingi, Pfr. : Proc. Zool. Soc, 1856, p. 899; Novit. Conch., 



vol. i, p. 91, pi. XXV, figs. 16, 17. 

 C. gregarius, Nevill (MS.) : Enum. Hel. et Pneum. Ceylon, p. 5 



(nom. nud.). 

 C. duplicatus, Pfr. : Proc Zool. Soc, 1854, p. 303. 



Hah. — Balangoda (Collett). 



The specimens of C. Cumingi now in the British Museum agree 

 moderately well with Pfeiffer's description, but do not seem to tally 

 with the figure he gives in the " Novitates." I have seen a specimen 

 of Nevill's manuscript species, said to have been named by him, 

 and I think it is only a squat form of G. Thwaitesii. I consider 

 C. duplicatus to be only a variety. In conclusion, I may remark that 

 the figures of the Conch. Ind. have chiefly been quoted here, since 

 this work is the most accessible to students, and that, in the case of 

 localities not previously recorded, I have myself verified the specimens. 



The following two forms appear to be undescribed : — 



13. Catatjlxjs Nevilli, n.sp. PL Y, Pig. 16. 



Testa anguste et profunde rimata, pyramidata, soliclula, eleganter 

 costulato - striata, brunnea, spira elevata, apice obtusulo ; sutura 

 impressa ; anfr. 8, convexi, ultimus non attenuatus ; carina umbilicalis 

 valida, compressa ; periomphalum mediocre, costulato - striatum ; 

 apertura subcircularis ; peristoma rubro - castaneum, continuum , 

 incrassatum et valde reflexum, basi productum, canali mediocri 

 perforatum. Alt. 23-6, diam. max. 9-5 mm. 



iZ«3.^Ambepusse (0. Collett); Kegalla (H. B. Preston). 



