THE MOLLUSCA HEDLEY. 



469 



Named in honour of the brilliant American Conchologist, who 

 has so successfully laboured to place the systematic study of the 

 Mollusca on a more scientific basis. 



CYLINDRA DACTYLUS, Linne. 

 Tryon, loc. cit., p. 197, pi. Ivii., figs. 658, 664 ; Garrett, loc. cit., 



pp. 7, 65. 



Three specimens from the Funafuti lagoon. 



Garrett found this at Fiji, Tonga, Samoa, Gilberts, Carolines, 



Society, Paumotus, and Hawaii. Melvill and Standen quote it 



from the Loyalties.* Examples from Woodlark Island (British 



New Guinea), and New Caledonia, are contained in this Museum. 



ERATO SCHMELTZIANA, Crosse. 

 Tryon, Man. Conch, v., 1883, p. 11, pi. iv., figs. 54, 55. 



A few specimens were collected on the beach of the Funafuti 

 lagoon. 



Previously reported only from Fiji. 



MARGINELLA SANDWICENSIS, Pease. 

 Tryon, loo. cit., p. 45, pi. xii., fig. 69. 



Several dead shells were picked up on the beach of the Funafuti 

 lagoon. 



Tryon reports it from Hawaii and Fiji. 



MARGINELLA IOTA, sp. nov. 

 (Fig. 41). 



Shell ovate, truncate anteriorly, white, 

 smooth. Spire slightly exserted. Aperture 

 comparatively wide. Outer lip thick, sin- 

 uate, smooth within. Inner lip with three 

 principal anterior plications and several 

 remote subsidiary ones, deep within. 

 Length 1'5, breadth -95 mm. 



Three specimens from the sand of the 

 lagoon beach. 



The only Marginella comparable in 

 size, known from the tropical Pacific, is 

 M. mariei, Crosse, whose broad shell and 

 immersed spire easily distinguish it. 



MARGINELLA PEASII, Reeve. 

 Tryon, loc. cit., p. 53, pi. xiii., fig. 27. 



Abundant in a dead state on the sandy beach of the lagoon. 



Fig. 41. 



* Melvill & Standen Loc. cit., via., p. 103. 



