GASTROPODA (pectinibranchia). Moll. 55 
Cerithium matukense and 2 ^koxum, spp. nn., Watson, J. L. S. xv. pp. 105 
& 106, Fiji Islands, the first 310-316 faths. 
Cerithium {Bittium) lissum, Fiji, amhlyterum,Yn.yd\, Azores, 500 faths., 
mamillatum and enode, off Pernambuco, 675 faths., amhoynense, Amboyna, 
^ngrum, luscinioi^ and ])hilomelm, Nightingale Island, Tristan d’Acunha, 
150 faths., gemmatum, Atlantic, near Setubal, 470 faths., Globigerina-oozQ^ 
pupiformey Cape York, oosimense, Japan, spp. nn. ; Watson, J. L. S. xv. 
pp. 107-117. 
Cerithium {^Bittium, or perhaps Cerithiopsis?^ cylindricum, Port Jack- 
son, abruptum, Azores, 450-500 faths., delicatum and aedonium, Nightin- 
gale Island, Tristan d’Acunha, 100-160 faths., spp. nn., id. 1. c. pp. 
118-121. 
Cerithium (^Triforis) /evw/ren.se, Fiji, digemma and inflatum, St. Thomas 
West Indies, 390 faths., hebeSy Tristan d’Acunha, 100-150 faths., spp. nn., 
id. 1. c. pp. 100-104. 
Bittium minimum, J. E. Tenison Woods, P. R. Soc. Tasm. 1877 [1878], 
p. 123; B. minimum [again !], id. op. cit. 1878 [1879], p. 35; B. turbi- 
nel[l]oides, id. ibid. ; B. suhlcevis[ye']y id. Tr. R. Soc. Viet. xiv. [1878], 
p. 58 : spp. nn., all from Tasmania. 
Triforis craasula, sp. n.. Martens, Moll. Maur. p. 282, pi. xxii. fig. 1, 
Mauritius. 
Triforis fasciata, sp. n., J. E. Tenison Woods, P. R. Soc. Tasm. 1878 
[1879], p. 34, Tasmania. 
Lampania angulifera (Sow., Reeve) is from Port Jackson, Brazier; P. 
Linn. Soc. N. S. W. iv. p. 388. 
PlANAXIDJ]. 
Planaxis sulcata (Born), common on rocks in N.E. Australia, eaten by 
the settlers ; J. E. T. Woods, P. Linn. Soc. N. S. W. v. pp. 108 & 109. 
Melaniidas. 
Melania amarula (Lam.), Mauritius and Bourbon, and diadema (Lea, 
Brot) = amn.rulay of Rumph, from Amboina, compared ; Martens, Moll. 
Maur. p. 211. 
Melania subplicata and snellemanni, spp. nn., Sumatra, and sumatrensis 
(Brot), Schepman, Middel-Sumatra iv. pt. 3, pp. 13-16, pi. i. figs. 3-6 ; 
radula pi. iii. figs. 8 & 9 ; radula of M. scabra and tuberculata (Miill.), 
1. c. pp. 15 & 16, figs. 10 & 11. 
Melania brazieri, sp. n., Ancey, Le Nat. No. 42, Solomon Islands. 
Melania {^Sermyla') admirabilis, M. tang any icensis and horii, spp. nn.. 
Lake Tanganyika, E. A. Smith, Ann. N. H. (6) vi. p. 426. 
Tiphobiay g. n. Shell subturbinate, spire depressed, whorls fiattened 
above, angulated, and spinose ; axis and aperture prolonged into a chan- 
nelled beak; epidermis none [P]. Operculum ?. T. horiiy sp. n., Lake 
Tanganyika. E. A. Smith, P. Z. S. 1880, p. 348, pi. xxxi. fig. 6. 
Syrnulopsis, g. n. “ Testa subulata, lasvis, imperforata ; apertura ad basin 
