Freshwater-Shells of the Louisiade Archipelago. 207 
This species is widely distributed, occurring in some of the 
islands in the Indian Ocean, in the Malay Archipelago, and 
in many islands in the Pacific. 
29. Melampus caffer, Kiister. 
Auricula caffra, Kiister, Conch.-Cab. p. 36, pl. v. figs. 6-8 ; Sowerby, 
Conch. Icon. fig. 53 (bad !). 
Hab. Pig Island, Louisiade Archipelago, under logs a few 
feet above high-water mark (JacGillivray, in Brit. Mus.) ; 
coast of Natal and Ohetaroa Island (Kiéster) ; Philippines 
(Adams) ; Samoa Islands (Brit. Mus.). 
There is little doubt that this species is the Auricula 
scturt described by Lesson in the Voyage of the ‘ Coquille.’ 
The specimens from Pig Island. I at one time (Proc. Zool. 
Soc. 1885, p. 600) referred to M. fasciatus. 
B. FRESHWATER SPECIES, 
Neritina diadema, Récluz, is the only species recorded from 
these islands; but MacGillivray, in the Voyage of the 
‘Rattlesnake’ (vol. i. p. 213), mentions having met with 
“three kinds ot Melania, a Navicella, and five species of 
Neritina,’ but he does not name them specifically. All of 
these are in the collection of the British Museum with the 
exception of two Neritine. ‘The following is a list of the 
species at present known to me from this archipelago. Most 
of them are found in the Solomon and other neighbouring 
groups of islands, but some have a still wider range. No 
references or distribution are added, as these can be obtained 
in Brot’s monograph of Melania and in Martens’s works on 
Neritina and Navicella. 
1. Neritina Petit’, Récluz. 
Hab. St. Aignan (Basil Thomson). 
2. Neritina MacGillivrayt, Reeve. 
Hab. St. Aignan (Thomson). 
3. Neritina adumbrata, Reeve. 
Hab, St. Aignan (Thomson). 
4. Neritina variegata Lesson. 
Hab, St. Aignan (Thomson) 
