1887.] MOLLUSKS OF THE VITI ISLANDS. 287 



Melawpus strictus, Gassios, Journ. de Concli. 1874, p. 213 ; 

 Pfeiffer, Mon. Piieutn. CAuric.) iv. p. 324. 



Melanipus pseudocommorlus, " Mousson," Schmeltz, Cat. Mus. 

 Godeff. iv. p. 69 ; Paetel, Cat. Conch, p. 114. 



A few examples found just above high-water mark on a small 

 islet on the north coast of Vanua Levu. 



Pfeiffer's tvpe specim.ens in Cuming's Museum were labelled 

 Admiralty Islands. His M. fricki, together with Pease's semi- 

 plicatus and INIousson's pseudncommodus, were obtained at the 

 Sandwich Islands, where I first discovered Pease's type specimens. 

 Shells received from New Caledonia labelled M, strictus do not 

 differ from Viti examples. 



The longitudinal plications on the upper third of the shell, pale 

 or dark brownish colour, numerous whorls, rather long acute spire, 

 and single parietal fold will readily distinguish this species. The 

 basal portion is also more or less distinctly plicated. The palate 

 has from one to three laminae. Length 10 millim. 



7. Melampus consanguineus, sp. nov. 



Shell imperforate, solid, obovate, smooth, shining, faintly striated 

 with lines of growth, light chestnut-brown ; spire couvexly conoid, 

 apex mucronate ; sutuial line distinct, linear: whorls 7, flattened, 

 the last one subangulate on the shoulder, and obliquely impressedly 

 striated at the base ; the lower portion of the parietal region with 

 two spiral plications, the upper one the larger, and occasionally 

 there exists one or two posterior denticles; palate with from 11-14 

 white plicae ; columellar fold continuous with the basal portion of 

 the peristome. 



Length 9, diam. 5 millim. 



Not uncommon at high-water mark at Vanua Levu. 



The uniform pale chestnut colour and numerous plications in the 

 throat will determine it. 



8. Melampus striatxjs. Pease. 



Melampus striatus (Tralia), Pease, Proc. Zool. Soc. 1861, p. 244, 

 1871, p. 477; Pfeiffer, JVIon. Pneum. (Auric.) iv. p. 311 ; Garrett, 

 Journ. Acad. Nat. Sci. Phil. 1885, p. 89. 



Melampus mordrouzieri, Souverbie, Journ. de Conch. 1866, 

 p. 148, pi. 6. tigs. 1, la; Pfeiffer, Mon. Pneum. (Auric.) iv. 

 p. 312. 



Melampus ornatus, Mousson, Journ. de Conch. 1871, p. 21, 

 pi. 3. fig. 7 ; Pfeiffer, Mon. Pneum. (Auric.) iv. p. 312. 



Not infrequent on the margins of mangrove-swamps in the Viti, 

 Tonga, and Samoa Islands. It also inhabits the Society Islands 

 and New Caledonia. 



It may be distinguished by its oblong-ovate form, the brownish- 

 corneous, chestnut-brown, or greenish-brown colour, its mucronated 

 spire, and the 8 whorls marked by closely-set transverse impressed 

 lines, the upper half with small longitudinal plications, which give 



20* 



