58 Christmas Island. 



Family ATJEICrLIDiE. 

 8. Pythia scarataeus (Linn.). (PI. YHI, Fig. 15.) 



Pythia scaraheeus, Pfeiffer, Mon. 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). (PL VIII, Fig. 16.) 

 Melampus luteus, Pfeiffer, Mon. Auric, p. 36. 



Sab. — Same as preceding. 



Also rather smaller than usual. Length, 14 mm. 



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



Melampus fasciatus, Desh. : Pfeiffer, Mon. Auric, p. 38. 



Hal. — Same as preceding. 



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

 are red-banded, whilst others are 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, Mon. Auric, p. 30. 



Hah. — 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 CYCLOPHOEIDJE. 

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



Zeptopoma mouhoti, Pfeiffer, P.Z.S., 1861, p. 185; Monog. Pneumon., vol. iii,. 

 p. 82 ; Reeve, Conch. Icon,, vol. xiii, pi. v, fig, 25. 



Testa breviter conica, umbilicata, tenuiuscula, subpellucida^ 

 sordide albida, epidermide tenuissima lutescente induta, interdum 

 infra peripheriam fusco maculata ; spira conoidea, ad apicem hand", 

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

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

 menti lineis obliquis ornati, ultimus in medio vix angulatus, liris- 

 circa 12 (mediana ad peripheriam caeteris paulo -fortiori), succinctus ; 

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

 anguste expansum, haud duplicatum, marginibus callo tenui junctis,, 

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



