58 C/iristmas Island. 



Family ATJEICrLID^. 

 8. Pythia scarabseus (Linn.). (PI. VIII, Fig. 15.) 



Fijthia searahcBus, PfeifEer, Mou. Auric, p. 82. 



Hah. — Flying Fish Cove. "Widely distributed in the islands. 

 of the Malay Archipelago and Oceania. 



The specimens from Christmas Island are much smaller than, 

 usual, the largest having a length of only 20 mm, 



9. Melampus luteus (Quoy & Gaimard). (PI. VIII, Fig. 16.) 

 Melampiiii lateiis, Pfeiffer, Mou. Auric, p. 36. 



Hal). — Same as preceding. 



Also rather smaller than usual. Length, 14 mm. 



10. Melampus fasciatus (Deshayes). (PI. VIII, Fig. 17.) 

 Melampus fasciat lis, Desh. : Pfeiffer, Mou. Auric, p. 38. 



Jlai. — Same as preceding. 



Again the examples are small, only 11^ mm. in length. Some- 

 are red-banded, whilst others arc of a livid greyish tint without 

 bands, the spire being slate-blue in all. 



11. Melampus castaneus (Miihlfeldt). (PL VIII, Fig. 18.) 

 Melampus castaneus, Pfeiffer, Mou. Auric, p. 30. 



ITah. — Sandwich and Samoa Islands. 



Only a single young specimen was obtained by Mr. Andrews. 

 It agrees in every respect with examples from the Hawaiian'. 

 Islands. 



Family CYCLOPHOEID^. 

 12. Leptopoma mouhoti, Pfeiffer, var. (PI. VIII, Figs. 19, 20.) 



Leptopoma moulioti, Pfeiffer, P.Z.S., 1861, p. 185; Mouog. Pueumou., vol. iii^ 

 p. 82 ; Eeeve, Conch. Icou., vol. xiii, pi. v, fig. 25. 



Testa breviter conica, umbilicata, tenuiuscula, subpellucida, 

 sordide albida, epidcrmide tenuissima lutesccnte induta, interdum 

 infra periphoriam fusco maculata ; spira conoidea, ad apicem baud 

 acuta ; anfractus 5, convexi, liiis spiralibus filiformibus (in anfr. 

 ultimo circitcr 6) striisque inter liras spiralibus tenuibus, incre- 

 menti lineis obliquis ornati, ultimiis in medio vix augulatus, liris 

 circa 12 (mcdiana ad peripheriam ca^tcris paulo -fortiori), succinctus ; 

 apertura fere circularis, long, totius ^ paulo superans ; peristoma 

 anguste expansum, baud duplicatum, marginibi;s callo tenui junctis,, 

 columellari sinuato. Long. 11-^- mm., diam. maj. 1^-mm. 



