220 REPORT ON ZOOLOGY, MDCCCXLIII. 



Pectinibrancliia. Paludina detipiens, Millet. (Guerin 

 Mag. pi. 63.) 



Five or six ventricose whorls with deeply -impressed sutures, the last whorl 

 very tumid, aud separated from the preceding by a large umbilical fissure. 

 France. The figure does not appear to be good. The species may, very 

 possibly, be the same as P. Trosckelii, described by Paasch. Trance. P. 

 granum, Menke (1. c.), perforate, smooth, five whorls, throat yellow, 1^ line. 

 Swan River. Of Mehtnia twelve species have been figured by Philippi, half 

 of which are new : M. coffea, Phil., from Java (?) Hiigelii, Ph., from New 

 Holland (?) siccata, v. Busch, from Java, Largillierti, Ph., from Central 

 America, Schiedeana, Ph., from Mexico, strigilata, Dunker, locality not 

 mentioned. M. lirata, Menke, turreted, yellowish green, the last whorl 

 surrounded with delicate furrows, Columella with sharp plicae, Sj lines. 

 Avon River. 



Benson (1. c.) has instituted a new genus, Trlcula, allied to Melania : 

 testa spira elongatiuscula, apertura obliqua, ovata, Integra superne angulata ; 

 peristomate coutiuuo, subreflexo ; anfractu ultimo subumbilicato. Animal 

 Melanise simile ; proboscide clongata, antice emargiuata, tentaculis filiformi- 

 bus duobus oculos postice prope basin gerentibus ; pede mediocri-ovato 

 antice subquadrato. Operculo corneo subspirali. T. montana, in the river 

 near Bhimtal. 



Truncatella striatula, Menke, turreted, perforate, transversely striated, 

 5 lines. West Coast of New Holland. 



Recluz has described several species of Rissoa, from the coasts of France, 

 in the ' Rev. Zool.,' p. 5 : It. souleyetana, lilacina, arata, minutissima, Mich. 

 Var., Guerini, parva (Turbo parv., Maton), cancellata (Turb. cane., Lam., 

 Rissoa lactea, Mich.), costata (Turbo costatus, Montagu, R.^carmata, 

 Phil.), matoniana, striatula (Turbo striat., Montagu), vittata (Turbo, vitt., 

 Donovan), (Turbo cingillus, Mont.), iinifasciata (Turbo wnif., Mont., Rissoa 

 fulva. Mich.) And in page 101 are R. cyclomostomata, Deshayesiana, 

 prteusta. 



Hinds has instituted eight new species oiScalaria: (Proc. p. 124) Sc. 

 glabrata, Dian&, vestalis, suturalis, aciculiiia, creberrima, porrecta, vulpina. 

 The same naturalist has described (Annals, xi, p. 16) twenty-nine new 

 species of the genus Trillions, (Desh.), small, sinistral Cerithia. He divides 

 the genus into three sub-genera. 



(1) Itio : testa cylindrica, elongata, acuminata ; to which belong Triplioris 

 gigas, from New Guinea, concors, sculjitus, vittatits, bilir, from Malacca, 

 Metcalfeii, from the Pacific, cancellatus, corrugatus, maxillaris, from Malacca, 

 micans, asperrimtis, from New Guinea, mar moral us y from the West Indies, 

 elegans, from Malacca. 



