Report on the zoological collections made in the Indo-Pacific Ocean ...

70 COLLi:CTIONS FROM MELANESIA." blanche, quelquefois un pen jaunutre, avec des 2^^^s en arriere,"and the oi^erculum is " rougeatre." None of these features arepresent in iV. melanotragus ; its spire is scarcely raised above thelast whorl, the labrum is margined with intense black, the columellais white and destitute of the " plis en arriere," and the operculumis flesh-coloured, marked with two arcuate purplish-blackstripes. Not finding any name which can be retained for thisspecies, I have imposed upon it that of N. melanotrafjiis, beiugdescriptive of the black labrum. The name JV. nigra appears in the' Conchylicn-Cabiuet,' and was given by Chemnitz to another species.If such were not the case I would have applied it to tins species, aswas done by Gray to specimens brought home by Dr. Dieffenbachfrom New Zealand.83. Nerita costata.Chemnitz ; Reeve, Conch, Icon. figs. 6 a, h.Hah.N.E. Australia, beach.84. Nerita lineata.Chemnitz ; Reeve, Conch. Icon. fig. 13.Hah. Straits of Malacca {Chemnitz)', Port Essington and PhilippineIslands {Reeve) ; Port Molle, 12-20 fms., and Port Curtis, inmangrove-swamps above high -water mark {CopjpvKjer).85. Nerita squamulata.Le Gillou, Revue Zool. 1841, p. 344 ; Reeve, Conch. Icon. figs. G3 a-f.Hah. Port Curtis, Port Denison, Port Molle, Queensland, 12-20 fms., on a rocky bottom {Goppinger) ; Singapore and PhilippineIslands {Reeve) ; Samoa Islands {Brenchley) ; Pelew Islands {King).^Q.Nerita sigiiata.Maclcay ; Reeve, Conch. Icon. pi. x. figs. 44 a, h.Hah. Friday Island, Torres Straits, in mangrove-swamps.One small specimen, obtained at the above locality, has the ridgesof a blackish colour articulated with creamy white, the intersticesbeing of a dirty white colour.87. Turbo concinnus.Philipjn, Con.- Cab. p. 44, pL xi. fig. 6 (published in Lief. 65 in theyear 1847).=T. articulatus, Reeve, Conch. Icon. sp. 39 (1848).Hah. Port Molle, Queensland, on a coral-reef {Goppinger).The operculum of this species is solid, convex, more or less palegreenish, coarsely granular, especially near the outer margin, andexhibits a slight, obliquely arcuate depression extending trom thecentre to the opposite or inner side.